摘要(英) |
The design of the optical system for 4 channel 25-Gbps optical interconnect module basing on flexible printed circuit board (FPC) is proposed. The polymer waveguide, 45 micro-reflector, vertical-cavity surface emitting LASER (VCSEL), transimpedance amplifier (TIA), photodiode, microlens, and V-grooves structure were integrated on the FPC.
The optical simulation result of optical coupling efficiency is 69.9 % from the VCSEL through polymer waveguide to 50-um-core multi-mode fiber (MMF). The simulation result of optical coupling efficiency from MMF through polymer waveguide to PD is 28.7 %. The inter-channel optical crosstalk at Tx is smaller than -44 dB and Rx is smaller than -39dB.
The 1-dB alignment tolerances of VCSEL/PD are more than 9 um. This design can meet the variability of the standard flip-chip package process. |
參考文獻 |
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