Zhang, Shuqiang. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2010. / Includes bibliographical references (p. 74-80). / Abstracts in English and Chinese. / Abstract --- p.i / 摘要 --- p.iv / Acknowledgements --- p.v / Table of Contents --- p.vi / Chapter Chapter 1 --- Background --- p.1 / Chapter 1.1 --- Routing and Wavelength Assignment --- p.1 / Chapter 1.2 --- Survivability in Optical Networks --- p.3 / Chapter 1.3 --- Optical Multicasting --- p.4 / Chapter 1.3.1 --- Routing and Wavelength Assignment of Optical Multicast --- p.5 / Chapter 1.3.2 --- Current Research Topics about Optical Multicast --- p.8 / Chapter 1.4 --- Traffic Grooming --- p.10 / Chapter 1.4.1 --- Static Traffic Grooming --- p.11 / Chapter 1.4.2 --- Dynamic Traffic Grooming --- p.13 / Chapter 1.5 --- Contributions --- p.15 / Chapter 1.5.1 --- Multicast Protection with Scheduled Traffic Model --- p.15 / Chapter 1.5.2 --- Energy Efficient Time-Aware Traffic Grooming --- p.16 / Chapter 1.6 --- Organization of Thesis --- p.18 / Chapter Chapter 2 --- Multicast Protection in WDM Optical Network with Scheduled Traffic --- p.19 / Chapter 2.1 --- Introduction --- p.19 / Chapter 2.2 --- Multicast Protection under FSTM --- p.22 / Chapter 2.3 --- Illustrative Examples --- p.28 / Chapter 2.4 --- Two-Step Optimization under SSTM --- p.37 / Chapter 2.5 --- Summary --- p.40 / Chapter Chapter 3 --- Energy Efficient Time-Aware Traffic Grooming in Wavelength Routing Networks --- p.41 / Chapter 3.1 --- Introduction --- p.41 / Chapter 3.2 --- Energy consumption model --- p.43 / Chapter 3.3 --- Static Traffic Grooming with Time awareness --- p.44 / Chapter 3.3.1 --- Scheduled Traffic Model for Traffic Grooming --- p.44 / Chapter 3.3.2 --- ILP Formulation --- p.44 / Chapter 3.3.3 --- Illustrative Numerical Example --- p.48 / Chapter 3.4 --- Dynamic Traffic Grooming with Time Awareness --- p.49 / Chapter 3.4.1 --- Time-Aware Traffic Grooming (TATG) --- p.51 / Chapter 3.5 --- Simulation Results of Dynamic Traffic Grooming --- p.54 / Chapter 3.5.1 --- 24-node USNET: --- p.55 / Chapter 3.5.2 --- 15-node Pacific Bell Network: --- p.59 / Chapter 3.5.3 --- 14-node NSFNET: --- p.63 / Chapter 3.5.4 --- Alternative Configuration of Simulation Parameters: --- p.67 / Chapter 3.6 --- Summary --- p.71 / Chapter Chapter 4 --- Conclusions and Future Work --- p.72 / Chapter 4.1 --- Conclusions --- p.72 / Chapter 4.2 --- Future Work --- p.73 / Bibliography --- p.74 / Publications during M.Phil Study --- p.80

Zhang, Yin. / Thesis submitted in: December 2008. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2009. / Includes bibliographical references (leaves 56-60). / Abstracts in English and Chinese. / Chapter Chapter 1 --- Introduction --- p.1 / Chapter 1.1 --- Telecommunications network hierarchy --- p.2 / Chapter 1.2 --- PON architectures for access networks --- p.4 / Chapter 1.2.1 --- TDM-PON --- p.5 / Chapter 1.2.2 --- WDM-PON --- p.7 / Chapter 1.3 --- Data delivery mode in WDM-PON --- p.8 / Chapter 1.3.1 --- Point-to-point --- p.8 / Chapter 1.3.2 --- Broadcast --- p.9 / Chapter 1.3.3 --- Multicast --- p.10 / Chapter 1.4 --- Motivation of this thesis --- p.10 / Chapter 1.5 --- Outline of this thesis --- p.13 / Chapter Chapter 2 --- Previous Multicast Architectures in WDM-PON --- p.14 / Chapter 2.1 --- Introduction --- p.15 / Chapter 2.2 --- Previous WDM-PON architectures with multicast capability --- p.15 / Chapter 2.2.1 --- Subcarrier multiplexing --- p.16 / Chapter 2.2.2 --- All-optical based multicast enabled architecture --- p.18 / Chapter 2.3 --- Summary --- p.21 / Chapter Chapter 3 --- A Multicast enabled WDM-PON Architecture Using ASK-DPSK Orthogonal Modulation --- p.23 / Chapter 3.1 --- Introduction --- p.24 / Chapter 3.2 --- System architecture --- p.25 / Chapter 3.3 --- Experimental Demonstration --- p.27 / Chapter 3.4 --- Discussion --- p.31 / Chapter 3.5 --- Summary --- p.36 / Chapter Chapter 4 --- A WG filtering and its suppression in quaternary ASK-DPSK based multicast enabled WDM-PON --- p.37 / Chapter 4.1 --- Introduction --- p.38 / Chapter 4.2 --- Principle of narrowband filtering --- p.38 / Chapter 4.3 --- Simulation model --- p.40 / Chapter 4.4 --- Simulation results and discussion --- p.42 / Chapter 4.4.1 --- Different extinction ratios --- p.43 / Chapter 4.4.2 --- Different AWG filter shape and bandwidth --- p.47 / Chapter 4.5 --- Summary --- p.50 / Chapter Chapter 5 --- Summary and Future Works --- p.51 / Chapter 5.1 --- Summary of the thesis --- p.52 / Chapter 5.2 --- Future works --- p.53 / List of Publications --- p.55 / BIBLIOGRAPHY --- p.56

Thesis (Ph. D.)--University of Hong Kong, 2006. / Title proper from title frame. Also available in printed format.

Thesis (Ph. D.)--University of Hong Kong, 2007. / Title from title frame. Also available in printed format.

Thesis (Ph.D.)--University of Nebraska-Lincoln, 2006. / Title from title screen (viewed Mar. 30, 2007). PDF text: vii, 83 p. : ill. (some col.) ; 0.44 Mb. UMI publication number: AAT 3225887. Includes bibliographical references. Also available in microfilm and microfiche formats.

No description available.

Photonic crystals (PCs) are nano-structured materials in which a periodic variation of the dielectric constant of the material results in a photonic band gap. By introducing defects into PCs, it is possible to build waveguides that can channel light along certain paths. It is also possible to construct micro-cavities that can localize photons in extremely small volumes. In this dissertation, to begin with, we computed the photonic crystals dispersion relations and found the photonic band gap (PBG) by the plane wave expansion method (PWE) in the frequency domain. Then, the finite difference time domain method (FDTD) along with the perfectly matched layer boundary conditions was adopted to solve Maxwell¡¦s equations, equivalent to simulate the movement behavior of the Photonic crystals. By properly varying the size of the defect on the PCs, it could really drop the particular wavelengths and guide them to output channels by PCs waveguides. We proposed the structures that would function as Wavelength-Division-Multiplexer (WDM). Secondly, coupled cavity waveguide of PC was used to control group velocity that achieved the slow light property. By calculating dispersion curve with PWE, we obtained group velocity characteristics in PCs waveguide. Meanwhile, we designed a novel Time-Division-Multiplexer (TDM) system by controlling the group velocity characteristics. Finally, we designed cascade ring resonators and expected to obtain an extendable delay line. Conventional delay line devices are propagating in a long waveguide to obtain the delay line property. An excellent delay line and ultra-small size properties are expected in the proposed structure. Because nano-technology has been making great progress steadily, it surely can be used to demonstrate a practical breakthrough in which the devices based on the PC integrated circuits are realized. These devices will be a potential key component in the applications of ultra-high-speed and ultra-high-capacity optical communications and optical data processing systems.

Thesis (Ph. D.)--School of Electrical and Computer Engineering, Georgia Institute of Technology, 2004. Directed by Stephen E. Ralph. / Vita. Includes bibliographical references (leaves 281-296).

Not available / text

Not available / text