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Gain recovery of bulk semiconductor optical amplifiers

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3 Author(s)
F. Girardin ; Inst. for Quantum Electron., Swiss Fed. Inst. of Technol., Zurich, Switzerland ; G. Guekos ; A. Houbavlis

The gain recovery time of 1.55-μm bulk semiconductor optical amplifiers (SOA's) with lengths from 500 to 1500 μm has been measured with a continuous-wave (CW) probe in the time domain. It is shown to decrease with increasing length down to 60 ps for the longest SOA. This behavior is theoretically explained. A lower limit for the recovery time is observed and explained.

Published in:

IEEE Photonics Technology Letters  (Volume:10 ,  Issue: 6 )