HIGH-PERFORMANCE SEMICONDUCTOR OPTICAL AMPLIFIER ARRAY FOR SELF-ALIGNED PACKAGING USING SI V-GROOVE FLIP-CHIP TECHNIQUE

A high performance four-tilted stripe semiconductor optical amplifier array, with low polarization sensitivity and very low-gain ripple, compatible with self-aligned flip-chip mounting on a Si motherboard is reported. Up to 32 dB of internal gain with 2-dB polarization sensitivity is obtained, A multifiber module has been realized, following an almost static optical alignment procedure, showing no degradation of the SOA array performances, Fiber-to-fiber gain, measured on the four stripes, is 14.4+/-1.3 dB with a gain ripple below +/-0.1 dB.