摘要(英) |
In this thesis, two types of transmitter modules (Tx) for optical interconnect based on silicon-optical-bench (SiOB) had been developed. Two types are 850 nm with 4-channel × 10 Gbps (850nm-4x10G-Tx) and 1310 nm with 4-channel × 5 Gbps (1310nm-4x5G-Tx), respectively. The chip size of Tx is only 5 × 5 mm2. Tx includes a monolithic integration of silicon-based 45° micro-reflector, V-groove array, high-frequency transmission line of 10 GHz, and bonding pads with Au/Sn eutectic solder. All of Components are assembling through hybrid integration, vertical-cavity surface-emitting laser (VCSEL) is assembled by flip-chip bonding and fiber ribbon is inserted to V-groove array at specific position with highly precise-passive alignment. The depth of 45° micro-reflector can be reached to 110 μm by anisotropic wet etching process. Such this micro-reflector has good optical properties for infrared light. The light emanating from VCSEL can be deflected into multi-mode fiber (MMF) and the coupling efficiency of 850nm-4x10G-Tx and 1310nm-4x5G-Tx can be up to -3.5 dB and -1.1 dB, respectively. The cross-talk of inter-channel is less than 30 dB in these modules. Utilizing micro lithography, the process tolerances of 10 GHz transmission line are within 10%, and the optical 1 dB alignment tolerances are within 20 μm and 15 μm for 850nm-4x10G-Tx and 1310nm-4x5G-Tx, respectively. Eye patterns of the Tx are measured as the 15-bit PRBS with a data rate of 10 Gbps for 850nm-4x10G-Tx and 5Gbps for for 1310nm-4x5G-Tx.
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