Hybrid Integrated 4×4 Optical Matrix Switch Module on Silica Based Planar Waveguide Platform (Joint Special Issue on Photonics in Switching : Systems and Devices)

概要

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The hybrid electical/optical multi-chip integration technique for optical modules for optical network system has benn developed. Employing the technique, a 4×4 broadcast-and select type optical matrix switch module has been realized. The module consists of four sets of silica waveguide 1:4 splitters/4:1 combiners, four 4-channel arrays of polarization insensitive semiconductor optical amplifiers with spot-size converters as optical gates, printed wiring chips for electrical wiring and single mode fibers for optical signal interface on plannar waveguide platform fabricated by atmospheric pressure chemical vapor deposition. All the gates and the wiring chips were mounted precisely onto the platform at once in flip-chip manner by self-align technique using AuSn solder bumps. Coupling loss between the waveguide and the SOA gate was estimated to be 4.5dB. Averaged fiber-to-fiber signal gain, on-off ratio and poiarization dependent loss for each of the signal paths was 7dB ±2dB, more than 40dB and 0.5dB, respectively. High speed 10Gb/s photonic cell switching as short as 2nsec has been successfully achieved.
社団法人電子情報通信学会の論文
1999-02-25