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Spot-size converter integrated polarization insensitive semiconductor optical amplifiers

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9 Author(s)
J. R. Kim ; Photonics Lab., Samsung Adv. Inst. of Technol., Suwon, South Korea ; J. S. Lee ; S. Park ; M. W. Park
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Spot-size converter integrated polarization-insensitive semiconductor optical amplifier (SSC-SOA) with angled window has been designed and fabricated using both selective area growth and successive lateral tapering. A narrow beam divergence of 80/spl times/15/spl deg/, 0.2-dB amplified-spontaneous-emission ripple, and 1.5-dB polarization sensitivity within the 3-dB optical bandwidth were obtained at 29.7-dB chip gain. The fiber-to-fiber gain of the SOA module was measured to be 22 dB at 200 mA, i.e., the coupling loss was below 4 dB per each facet.

Published in:

IEEE Photonics Technology Letters  (Volume:11 ,  Issue: 8 )