In this thesis, the fabrication and performance of the 2.5Gb/s optical transceiver modules applied in optical communication network are discussed. The optical transceiver modules consist of transmitter and receiver. The transmitters are composed by laser driver IC and 1310 FP (Fabry-Perot) laser, where the receivers are composed by limiting amplifier IC and 1310nm ROSA (Receiver Optical Sub-Assembly). In the design of modules, not only components but also the PCB layout affects the performance heavily. In signal transmission, we must use proper termination scheme to eliminate the signal reflection. Besides we must also consider the EMI and crosstalk problems, so the design will be perfect. An optical transceiver module is operated at signal pattern of 27-1 and data rate of 2.5Gb/s. In transceiver, the result of measurement, Peak-Peak Jitter is 29ps. In receiver, back to back, the Peak-Peak Jitter is 29ps. In addition, the measuring result connecting with 2km fiber of Peak-Peak Jitter is 30ps. The result of eye diagram measurement can meet the mask of ITU-T standard. In the condition of bit error rate of 10-12 , the sensitivity of receiver is -15.4dBm.

We fabricate and measure 10Gb/s optical transceiver module for used in optical communication network. The 10Gb/s optical transceiver module consists of a laser, a laser driver IC, a PIN-TIA, a limiting amplifier and a high-frequency print circuit board (PCB) layout design. In the design of modules, the distortion, reflection, the effect of lumped elements and SMA connector are considered. The layout of printed circuit board must be match to the impedance of transmission line. The electromagnetic interference (ISI) issue is also considered in order to achieve the best design of the module. The optical transceiver module is tested at signal pattern of 231-1 and data rate of 10Gb/s. The peak-peak jitter is measured 27ps in transmitter. In receiver, the peak-peak jitter is measured 24ps at back to back. For 10km fiber, the peak-peak jitter is measured 29ps. In the condition of bit error rate (BER) of 10-12, the sensitivity of receiver can reach to -13.5dBm. The result of eye diagram measurement can meet the mask of STM-64/OC-192 standard.

Abstract In this thesis, the fabrication and performance of the OC-48 optical transceiver modules applied in optical communication network are studied. The optical transceiver modules consist of two parts¡Gthe transmitter and receiver. In the transmitter, laser driver IC and 1310nm FP (Fabry-Perot) Laser are used. In the receiver, limiting amplifier IC and 1310nm ROSA (Receiver Optical Sub-Assembly) are introduced. The static response of L-I curve and dynamic responses of VNA (Vector Network Analyzer) are studied. The effective bandwidth of LD can be observed from dynamic response. These parameters can help us to determine the LD driver for use in high frequency operation. Then, the method of DC-Coupling circuit to drive IC can be successfully transferred to optical signal. The operation conditions of an OC-48 transceiver module are the laser output power of -6dBm, signal pattern of 27-1, and data rate of 2.5Gb/s. The result of eye diagram measurement can meet the mask of ITU-T standards with the deterministic jitter of 49.88ps (0.1247 UI).¡CAfter 1 meter fiber transmission, the receiver can meet ITU-T standard with deterministic jitter of 125.28ps (0.3132 UI). In the future, the receiver should be improved to get a lower deterministic jitter.

ABSTRACT The aim of this dissertation is to fabricate an optical transceiver based on Si-bench technology for light peak application. The transceivers are composed of hybrid integration of the vertical cavity surface-emitting lasers (VCSEL), photo diodes and multi-mode fibers (MMF) on the Si optical bench using V-groove and U-groove structures. We are able to passively align VCSEL to MMF and photo diode to MMF because of the accurately-aligned characteristic of V-groove. The 45-degree-angled fibers with mirror coating are used to bend the directions of both the incoming and outgoing lights to the photodiode and the MMF. The simulations showed that the optical losses of the transceiver are less than 10 dB when the distance between VCSEL and MMF is 250£gm.The measured optical losses between transmitting module and receiving module are less than 12 dB. Key words: Light Peak¡Boptical transceiver¡BSi-bench¡Baccurately-aligned

Dizertačná práca pojednáva o vlnových a elektromagnetických javoch, ku ktorým dochádza pri zatienení eliptického Gausovského zväzku kruhovou apretúrou. Najprv boli z Huygensovho-Fresnelovho princípu odvodené dva modely Fresnelovej difrakcie. Tieto modely poskytli nástroj pre zavedenie kontrastu difrakčného obrazca ako veličiny, ktorá kvantifikuje vplyv difrakčných javov na prevádzkové parametre optického spoja. Následne, pomocou nástrojov elektromagnetickej teórie svetla, boli odvodené štyri výrazy (dva presné a dva aproximatívne) popisujúce geometrický útlm optického spoja. Zároveň boli skúmané tri rôzne prípady odsmerovania zväzku - priečne posunutie a uhlové odsmerovanie vysielača, resp. prijímača. Bol odvodený výraz, ktorý tieto prípady kvantifikuje ako útlm elipticky symetrického Gausovského zväzku. Všetky vyššie uvedené modely boli overené v laboratórnych podmienkach, aby sa vylúčil vplyv iných javov. Nakoniec práca pojednáva o návrhu plne fotonického optického terminálu. Najprv bol ukázaný návrh optického vysielača nasledovaný vývojom optomechanickej sústavy prijímača. Pomocou nástrojov geometrickej a maticovej optiky boli vypočítané parametre spoja a odhad tolerancie pri zamierení spoja.