La photonique du silicium a connu un développent massif pendant les dix derniers années. Presque toutes les briques technologiques de base ont été réalisées et ont démontrées des performances remarquables. Cependant, le manque d’une source laser intégrée en silicium a conduit les chercheurs à développer de composants basés sur l’intégration entre le silicium et les matériaux III-V.Dans cette thèse je décris la conception, la fabrication et la caractérisation des lasers hybrides III-V sur silicium basés sur cette intégration. Je propose un coupleur adiabatique qui permet de transférer intégralement le mode optique du guide silicium au guide III-V. Le guide actif III-V au centre du composant fourni le gain optique et les coupleurs, des deux cotés, assurent le transfert de la lumière dans les guides silicium.Les lasers mono longueur d’onde sont des éléments fondamentaux des communications optiques. Je décris les différentes solutions permettant d’obtenir un laser mono-longueur d’onde hybride III-V sur silicium. Des lasers mono longueur d’onde ont été fabriqués et caractérisés. Ils démontrent un seuil de 21 mA, une puissance de sortie qui dépasse 10 mW et une accordabilité de 45 nm. Ces composants représentent la première démonstration d’un laser accordable hybride III-V sur silicium. / Silicon photonics knew an impressive development in the last ten years. Almost all the fundamental building blocks have been demonstrated and reveal competitive performances. However, the lack of an efficient silicon integrated laser source has led the researchers to develop heterogeneous integration of III-V materials on silicon.In this thesis I describe the design, the fabrication and the performances of these hybrid III-V on silicon lasers. I propose the use of an adiabatic coupler that totally transfers the optical mode between the III-V and the silicon waveguides. The active waveguide on III-V materials at the center of the device provides the optical gain, while, on both side, adiabatic couplers allow a loss-less transfer of the optical mode to the silicon waveguide. Single wavelength emitting lasers are fundamental elements for high bandwidth optical links. I review all the effective solutions enabling single waveguide hybrid III-V on SOI lasers. DBR, microring based, DFB and AWG laser solutions were analysed. Single wavelength operating lasers have been fabricated and characterized. A laser threshold of only 21 mA, an output power of more than 10 mW and tunability over 45 nm with a SMSR of 45 dB have been measured. These devices represent the first demonstration of a monolithically integrated hybrid III-V/Si tunable laser made by wafer bonding technique.

Cette thèse de doctorat porte sur la conception et la fabrication de microfils optiques de silice par la technique de fusion et d'étirage de fibres optiques standards, ainsi qu'une étude détaillée de leurs propriétés élastiques par spectroscopie Brillouin. Nous apportons une description complète, théorique et expérimentale, des spectres Brillouin rétro-diffusés par les microfils, révélant ainsi l'existence de plusieurs familles d'ondes élastiques, telles que les ondes hybrides et surfacique, ainsi que de nombreux anti-croisements. En exploitant l'ensemble de ces propriétés élastiques, nous démontrons ensuite une technique de mesure optique, simple et non-destructive, du diamètre des microfils et de leur uniformité, avec une très grande précision et une sensibilité de quelques nanomètres, comparable aux techniques conventionnelles comme la microscopie par balayage électronique. Nous réalisons en supplément une cartographie des ondes élastiques le long des microfils optiques par la technique de corrélation Brillouin de phase. Une autre étude majeure de cette thèse a porté sur la dépendance du spectre Brillouin en fonction d'une déformation axiale des microfils optiques qui présentent une très grande élasticité et des coefficients de contraintes élevés. Pour la première fois à notre connaissance, nous avons observé l’effet des non-linéaritiés des constantes élastiques de la silice dans un microfil optique fortement déformé sur les coefficients de contraintes. L'ensemble de ces travaux représente une étude fondamentale du processus de diffusion Brillouin dans les microfils optiques et permet également d'ouvrir la voie aux développements de dispositifs photoniques compacts dans le domaine des capteurs et des télécommunications. / This thesis reports the design and fabrication of subwavelength-diameter silica optical fibers, also known as optical micro and nanowires. These hair-like slivers of glass, manufactured by tapering optical fibers down to a size hundred times smaller than a strand of human hair, have a number of optical and mechanical properties that make them very attractive for both fundamental physics and technological applications. In addition to providing strong light confinement and enhanced nonlinear optical effects, they exhibit a large evanescent field, enabling applications not currently possible with comparatively bulky optical fibers.We here explore their elastic properties through Brillouin spectroscopy. We specifically provide a complete description, both theoretically and experimentally, of the backward Brillouin spectra including the observation of both bulk hybrid and surface acoustic waves with many anti-crossings. A very good agreement is found between numerical simulations of the elastodynamics equation and the experimental Brillouin spectra for a wide range of wire diameters. From this study, we demonstrate a simple and non-destructive in-situ technique for measuring the diameter of these ultra-thin fibers and their uniformity with a high sensitivity of only a few nanometers. A distributed measurement of both the surface and hybrid acoustic waves along an optical microwire was then performed using Brillouin optical correlation technique. We further investigate the tensile strain dependence of Brillouin scattering in optical microwires and report, for the first time to our knowledge, evidence of a strong elasticity and non-linearity of the elastic constants of silica. This thesis therefore demonstrates that optical microwires can find various potential applications for strain optical sensing.

Wik, Wik-Way and Kugu people (Wik people) in Aurukun Shire on Cape York Peninsula (CYP) are among the most socio-economically disadvantaged groups in Australia. While Wik people are presently reliant on government work for welfare programs for income, elders have a vision of economic independence and self-reliance. The large area of native Darwin stringybark (Eucalyptus tetrodonta) forest on traditional Wik land is a potential engine for economic development, which could provide meaningful employment, and contribute to other Wik socio-economic objectives, including facilitating population decentralisation and consolidation of cultural obligations to manage country through provision of on country employment, reducing welfare dependency and expenditure on timber purchases from outside CYP, and increasing income and skill levels in the community. A large proportion of the higher-quality timber resource on traditional Wik land is situated on bauxite mining leases and the current practice is to clear, windrow and burn this timber prior to commencement of mining. A Wik native forest timber industry could make use of this wasted high-quality timber resource. The objectives of this thesis were to: determine the property rights of Wik people to the timber resource on their traditional land; assess whether forestry operations in Darwin stringybark forests in the study area are likely to be financially viable; and generate a suite of optimal timber utilisation strategies for Wik people, subject to cultural, ecological and economic constraints. This required economic research in the areas of indigenous property rights, private and social costs and benefits of forestry, timber markets, and evaluation and application of economic analysis techniques for appraisal of forestry development opportunities. A social cost-benefit analysis of the privately optimal timber utilisation policies has also been performed to support the decision-making of government policy-makers. This research project was a demanding and complex undertaking, not least because the research was being performed in a unique and diverse indigenous cultural environment where there is a need to respect cultural and research ethics protocols, where formal participatory research methods are inappropriate and where gatekeepers are particularly zealous about ‘protecting’ Wik people from ‘outsiders’. In addition, the property rights of Wik people to timber resources had never previously been analysed methodically, timber inventory and timber market information was lacking for CYP, and there are difficulties in transferring parameter estimates from the industrial hardwood timber industry of Australia to culturally appropriate indigenous operations on CYP. A critical research step was to develop a rapport with Wik people and gain an insight into their forestry objectives, through a number of visits to Aurukun Shire and informal discussions with elders on country. The property rights of Wik people to timber resources have been assessed by reviewing Federal and State Government legislation, court rulings, regional development policies and the Queensland Code of Practice for Native Forest Timber Production on State-owned lands. A timber inventory was conducted over 580,000 ha of Darwin stringybark forest, individual-tree volume and taper models were developed, and a geographical information system was used in estimation of harvestable timber volume and its spatial distribution. To facilitate information transfer to Wik people, expertise was gained in the use of forest visualisation software to pictorially display timber inventory data. A review of literature and discussions with experts identified technically feasible timber processing opportunities for CYP timbers. An informal telephone and in-person survey of 46 businesses, local councils and government agencies in north and south Queensland and the Northern Territory provided market information about CYP timbers. Concepts of a culturally appropriate working week and culturally appropriate rate of production were developed to assist the estimation of cost structures for a Wik timber industry, based on cost estimates for non-indigenous Australian hardwood forestry enterprises that had been obtained from discussion with forestry experts and ‘grey literature’. Generation and evaluation of a suite of privately optimal timber utilisation strategies for Wik people has been supported by the development of a mixed-integer goal programming (GP) model using the GAMS software package. The social analysis of the privately optimal strategies has been performed by adjusting private net present values (NPV) estimated by the GP model with shadow prices and transfer payments. In particular, a carbon model has been developed to estimate the value of carbon emitted by the Wik timber industry. The GP model analysis suggests that a Wik timber industry can generate a positive financial NPV if seed funding of at least $0.5 M is available. In general, privately optimal forestry strategies for Wik people generated by the GP model utilise relatively low-technology equipment, including portable sawmills and air-drying sheds, and produce undressed timber products such as structural timber. This contrasts strongly with Wik visions of an industry selling mostly unprocessed logs or woodchips and non-indigenous representatives of Wik people favouring the manufacture of high-value strip-flooring and furniture. The social analysis of privately optimal timber utilisation strategies reveals that social NPVs are much higher than financial NPVs, even when accounting for the costs of ecosystem services foregone by logging native forest. The establishment of a culturally appropriate Wik timber industry can be expected to generate net social benefits for Australia.

Wik, Wik-Way and Kugu people (Wik people) in Aurukun Shire on Cape York Peninsula (CYP) are among the most socio-economically disadvantaged groups in Australia. While Wik people are presently reliant on government work for welfare programs for income, elders have a vision of economic independence and self-reliance. The large area of native Darwin stringybark (Eucalyptus tetrodonta) forest on traditional Wik land is a potential engine for economic development, which could provide meaningful employment, and contribute to other Wik socio-economic objectives, including facilitating population decentralisation and consolidation of cultural obligations to manage country through provision of on country employment, reducing welfare dependency and expenditure on timber purchases from outside CYP, and increasing income and skill levels in the community. A large proportion of the higher-quality timber resource on traditional Wik land is situated on bauxite mining leases and the current practice is to clear, windrow and burn this timber prior to commencement of mining. A Wik native forest timber industry could make use of this wasted high-quality timber resource. The objectives of this thesis were to: determine the property rights of Wik people to the timber resource on their traditional land; assess whether forestry operations in Darwin stringybark forests in the study area are likely to be financially viable; and generate a suite of optimal timber utilisation strategies for Wik people, subject to cultural, ecological and economic constraints. This required economic research in the areas of indigenous property rights, private and social costs and benefits of forestry, timber markets, and evaluation and application of economic analysis techniques for appraisal of forestry development opportunities. A social cost-benefit analysis of the privately optimal timber utilisation policies has also been performed to support the decision-making of government policy-makers. This research project was a demanding and complex undertaking, not least because the research was being performed in a unique and diverse indigenous cultural environment where there is a need to respect cultural and research ethics protocols, where formal participatory research methods are inappropriate and where gatekeepers are particularly zealous about ‘protecting’ Wik people from ‘outsiders’. In addition, the property rights of Wik people to timber resources had never previously been analysed methodically, timber inventory and timber market information was lacking for CYP, and there are difficulties in transferring parameter estimates from the industrial hardwood timber industry of Australia to culturally appropriate indigenous operations on CYP. A critical research step was to develop a rapport with Wik people and gain an insight into their forestry objectives, through a number of visits to Aurukun Shire and informal discussions with elders on country. The property rights of Wik people to timber resources have been assessed by reviewing Federal and State Government legislation, court rulings, regional development policies and the Queensland Code of Practice for Native Forest Timber Production on State-owned lands. A timber inventory was conducted over 580,000 ha of Darwin stringybark forest, individual-tree volume and taper models were developed, and a geographical information system was used in estimation of harvestable timber volume and its spatial distribution. To facilitate information transfer to Wik people, expertise was gained in the use of forest visualisation software to pictorially display timber inventory data. A review of literature and discussions with experts identified technically feasible timber processing opportunities for CYP timbers. An informal telephone and in-person survey of 46 businesses, local councils and government agencies in north and south Queensland and the Northern Territory provided market information about CYP timbers. Concepts of a culturally appropriate working week and culturally appropriate rate of production were developed to assist the estimation of cost structures for a Wik timber industry, based on cost estimates for non-indigenous Australian hardwood forestry enterprises that had been obtained from discussion with forestry experts and ‘grey literature’. Generation and evaluation of a suite of privately optimal timber utilisation strategies for Wik people has been supported by the development of a mixed-integer goal programming (GP) model using the GAMS software package. The social analysis of the privately optimal strategies has been performed by adjusting private net present values (NPV) estimated by the GP model with shadow prices and transfer payments. In particular, a carbon model has been developed to estimate the value of carbon emitted by the Wik timber industry. The GP model analysis suggests that a Wik timber industry can generate a positive financial NPV if seed funding of at least $0.5 M is available. In general, privately optimal forestry strategies for Wik people generated by the GP model utilise relatively low-technology equipment, including portable sawmills and air-drying sheds, and produce undressed timber products such as structural timber. This contrasts strongly with Wik visions of an industry selling mostly unprocessed logs or woodchips and non-indigenous representatives of Wik people favouring the manufacture of high-value strip-flooring and furniture. The social analysis of privately optimal timber utilisation strategies reveals that social NPVs are much higher than financial NPVs, even when accounting for the costs of ecosystem services foregone by logging native forest. The establishment of a culturally appropriate Wik timber industry can be expected to generate net social benefits for Australia.

No description available.

Fundação de Amparo a Pesquisa do Estado de Minas Gerais / This study evaluated the stress distribution in abutments on Morse taper implants and peri-implantar surrounding bone supporting fixed partial dentures, splinted or non-splinted, under axial and oblique loading. The study simulates by means of Finite Element Analysis the loss of two posterior mandibular elements: 1st premolar and 2nd premolar. For mandible simulation a tridimensional box with Type II bone was simulated. The implant system and abutment were obtained using CAD models transferred by the company. Were used Morse taper Implant Titamax CM-Cortical Ø 3.75mm x 9.0mm and Abutment Pilar CM with 2,5mm height (Neodent, Curitiba, PR, Brazil) divided in two groups according the prosthetic rehabilitation: splinted and non-splinted; subjected to two types of loading: axial simulating functional masticatory contact and oblique simulating parafunctional occlusal contact. The implants were positioned 1.5mm under bone level according manufactures recommendation and the abutments were installed with aid of CAD software. The data were analyzed after dynamic loading of 100N in axial direction in the buccal cusp and the oblique loading (angle of 45o) in the distal-lingual cusp; both on 2nd premolar. The results showed lower tensions for F Group on axial loading for both abutment (77.37MPa) and peri-implantar surrounding bone (118.58MPa); however for NF Group axial loading demonstrated similar values as described previously. The oblique loading promoted higher stress for both abutment (505,67MPa) and peri-implantar surrounding bone (505,67MPa). The crowns splinting promotes lower stress on F Group abutment when compared with NF Group regardless the loading type. The stresses on peri-implantar surrounding bone during occlusal axial loading are similar regardless the surface contact between the prosthesis. / Este trabalho avaliou a distribuição de tensões geradas nos pilares protéticos sobre implantes cone Morse e no osso periimplantar que suportam próteses parciais fixas, ferulizadas ou não ferulizadas, sob carregamento axial e oblíquo. O estudo simulou, por meio de Análise em Elementos Finitos, a perda de dois elementos dentais posteriores inferiores: 1° pré-molar e 2° pré-molar. Para simulação da mandíbula, uma caixa tridimensional com propriedades de osso tipo 2 foi confeccionada. O sistema de implante e pilares foram obtidos por meio de modelos em CAD cedidos pela empresa. O estudo utilizou implantes cone Morse (CM) Titamax CM-Cortical® Ø 3,75mm x 9,0mm e Pilar CM de 2,5mm de altura (Neodent, Curitiba, PR, Brasil) dividido em dois grupos, de acordo com a reabilitação protética: ferulizadas e não ferulizadas, cada modelo foi então submetido a dois tipos de carregamento: axial, simulando contato mastigatório funcional e obliquo, simulando contato oclusal parafuncional. Os implantes foram posicionados 1,5mm abaixo da margem óssea, segundo recomendação do fabricante, e os pilares foram instalados com auxilio de software tipo CAD. Os dados foram analisados após aplicação de carregamento dinâmico com força de 100N em direção axial na cúspide vestibular e o carregamento oblíquo (angulação de 45°) na cúspide distolingual, ambos no 2° pré-molar. Os resultados demonstram menores valores de tensão para o grupo F sob carregamento axial, tanto para o pilar (77,37MPa) quanto para o osso periimplantar (118,58MPa); entretanto, mesmo para o grupo NF o carregamento axial demonstrou valores semelhantes aos descritos anteriormente. O carregamento obliquo gera maiores tensões tanto para o pilar (505,67MPa) quanto para o osso periimplantar (505,67MPa) em ambos os grupos. Conclui-se que a ferulização das coroas gera menor tensão no pilar protético no grupo F quando comparado ao grupo NF independente do carregamento. As tensões a nível ósseo periimplantar, durante carregamento oclusal axial apresentaram-se semelhantes independente do tipo de superfície de contato entre as próteses. / Mestre em Odontologia

La chaîne himalayenne constitue le paradigme actuel des chaînes de collision. Cependant, les processus de formation de cette chaîne sont toujours en discussion. Bien que fondamentales pour comprendre la formation de la chaine, les klippes de Haut Himalaya Cristallin (HHC) sont paradoxalement assez peu intégrées dans les différents modèles. Dans la klippe de Jaljala (Centre – Ouest Népal) la combinaison d’études structurales pétrographiques et géochronologiques (40Ar/39Ar) ont permis de caractériser près du front de l’Himalaya la géométrie et la cinématique du Main Central Thrust (MCT) et d'une zone de cisaillement top vers le nord : la zone de cisaillement de Jaljala, failles qui encadrent le HHC. Les résultats montrent que le MCT et la zone de cisaillement de Jaljala ont été replissés et que le que la zone de cisaillement de Jaljala est proche du MCT au nord de la klippe. Une faille normale intra – séquences téthysiennes (TH) a été découverte, faille interprétée comme étant la zone de cisaillement de Jaljala sur le flanc sud de la klippe. Les données pétrographiques montrent une augmentation progressive de la température entre 350 et 550 °C au travers du MCT dans le Haut Himalaya Cristallin alors qu’elle atteint plus de 650 °C au Nord dans les zones internes. Les pseudosections montrent que ce pic de température est atteint après un échauffement isobare à desvaleurs de pression variant entre 7 à 9 kbars. Les âges 40Ar/39Ar sur micas montrent trois populations : environ 20, environ 40 et environ 100 Ma dans le HHC et dans les séquences téthysiennes. Deux hypothèses peuvent être proposées : soit l’exhumation est marquée par les âges à 40 Ma ce qui représente une date relativement ancienne pour l’exhumation du Haut Himalaya Cristallin au front de la chaîne, soit elle est datée à 20 Ma ce qui représente des âges plus communs d’exhumation sur le MCT et sous le STD (South Tibetan Detachment). La nature des roches observées, leurs déformations ainsi que les corrélations avec les résultats des autres klippes montrent que la zone de cisaillement de Jaljala ne peut être connecté au STD des zones internes. Le MCT et le STD ne peuvent se rejoindre en profondeur au front de la klippe ce qui exclut le modèle de prisme tectonique. Enfin la continuité des pressions et températures des zones internes avec les roches de la klippe va à l’encontre du modèle de fluage de croûte chenalisée puisqu’il n’y a pas de fusion partielle dans la klippe de Jaljala. Les structures, les conditions métamorphiques et les âges seraient plutôt compatibles avec la formation d’un duplex de Haut Himalaya Cristallin dont la géométrie est cependant mal contrainte et qui nécessiterait de présenter un système de plat – rampe frontal pour transférer les écailles les plus internes sur le front de la chaîne et ainsi former les klippes comme la klippe de Jaljala qui seront ensuite isolées de la zone interne par la formation d’un duplex Moyen Himalaya. / The Himalayan belt is the actual paradigm of collision mountain belt. However, formation model remains still under discussion. Even fundamental to understand the belt formation, the High Himalaya Cristalline (HHC) klippen are poorly integrated to the different existing models. In the Jaljala klippe (Western Central Nepal) a combination of structural, petrographic and geochronological (40Ar/39Ar) studies have allowed to caracterise close to the Himalaya front, the Main Central Thrust (MCT) and a top - to - the North shear zone : the Jaljala shear zone geometry and kinematics, faults that bordered the HHC. Results show that the MCT and the Jaljala shear zone have been refolded and the Jaljala shear zone is close to the MCT in the North of the klippe. An intra téthyan sequences (TH) have been discovered and interpreted as the Jaljala shear zone in the southern flank of the klippe. Petrographic datas show a progressive augmentation of temperature between 350 and 550 ° C cross to the MCT in High Himalaya Cristalline instead of 650 °C in the internal zones. Pseudosections show this temperature peak is achieved after an isobaric warming at pressure varying between 7 and 9 bars. 40Ar/39Ar ages on micas show three ages populations : about 20, about 40 and about 100 Myrs in the HHC and in Tethyan sequences. Two hypothesis can be proposed : on the one hand, the exhumation can be testified by 40 Myrs ages which represent an ancient age for the High Himalaya Crystalline in the front belt, on the other hand, it is dated at 20 Myrs which represent more commons ages for exhumation on MCT and under STD (South Tibetan Detachment). Rock lithology and their deformations and correlations with results for other klippen show that the STD in the Jaljala klippe cannot be connected width the STD in internal zones. The MCT and the STD cannot converge in depth at the front that excluded the tectonic wedge model. Finally, the pressures and temperature continuities in internal zones and with the klippe rocks excluded the channel flow model because partial melting is absent in the Jaljala klippe. Structures, metamorphic conditions and ages are more compatible with High Himalaya Crystalline duplex formation whose geometry is still poorly constrained and which necessitate a frontal flat - ramp system to transfer crustal nape on the front of the belt and then to form klippe as the Jaljala klippe that will then isolated from internal zones by Lesser Himalaya duplex formation.

This diploma thesis deal with the design of log-periodic antenna. The log-periodic antenna is self-complementary and broadband antenna. Antenna self-complementary structures are described only by angles. Input impedance of log-periodic antenna is equal to theoretical impedance ohms. The input impedance and radiation patterns of broadband antenna structures are independent of frequency over theoretically unlimited bandwidths. The log-periodic antennas provide linearly polarized radiation pattern. In this thesis is designed antenna for bandwidths 1 to 5GHz. In this diploma thesis is introduced design balanced unit, this is compound broadband balun and broadband impedance transformer. The broadband balun is based on conversion of microstrip line to balanced stripline. The Klopfenstein impedance taper is used for design. For simulation was used software from firma Zeland software IE3D.

The emergence of Ultra-wideband (UWB) technology application has yielded tremendous and vital impacts in the field of microwave wireless communications. These applications include military radar imaging, security screening, and tumour detection, especially for early detection of breast cancer. These indicators have stimulated and inspired many researchers to make the best use of this promising technology. UWB technology challenges such as antenna design, the problem of imaging reconstruction techniques, challenges of severe signal attenuation and dispersion in high loss material. Others are lengthy computational time demand and large computer memory requirements are prevalent constraints that need to be tackled especially in a large scale and complex computational electromagnetic analysis. In this regard, it is necessary to find out recently developed optimisation techniques that can provide solutions to these problems. In this thesis, designing, optimisation, development, measurement, and analysis of UWB antennas for near-field microwave imaging applications are considered. This technology emulates the same concept of surface penetrating radar operating in various forms of the UWB spectrum. The initial design of UWB monopole antennas, including T-slots, rectangular slots, and hexagonal slots on a circular radiating patch, was explicitly implemented for medical imaging applications to cover the UWB frequency ranging from 3.1 GHz to 10.6 GHz. Based on this concept, a new bow-tie and Vivaldi UWB antennas were designed for a through-the-wall imaging application. The new antennas were designed to cover a spectrum on a lower frequency ranging from 1 GHz - 4 GHz to ease the high wall losses that will be encountered when using a higher frequency range and to guarantee deeper penetration of the electromagnetic wave. Finally, both simulated and calculated results of the designed, optimised antennas indicate excellent agreement with improved performance in terms of return loss, gain, radiation pattern, and fidelity over the entire UWB frequency. These breakthroughs provided reduced computational time and computer memory requirement for useful, efficient, reliable, and compact sensors for imaging applications, including security and breast cancer detection, thereby saving more lives. / Tertiary Education Trust Fund (TET Fund) Supported by the Nigerian Defence Academy (NDA)

The purpose of this master’s thesis is foremost to provide a simple guide how to build elements of optical metropolitan area network. The basic model consists to sequence of construction, network topology, passive and active parts. The collection contains examples of alternative technology such as Wireless LAN with different frequency. The optical network construction based on optical cable, fibres, splices, trays, adapters, connectors and active parts for example a lot of media convertor models. After that there are demonstrating type of wavelength division multiplexer used in metropolitan area network – passive planar PCL splitter. One of the passive planar splitter are used to increase optical fibre channel. At the end of the collection a simplified examples of used measurements – optical time domain reflectometry and optical fibre transmission. Contains standard protocols or reflectogram. The conclusion of this thesis summarizes costs of FTTb (Fibre To The Building) model of optical metropolitan area network in Czech republic and future contribution for society.