Pump and probe measurements with femtosecond resolution are performed on a gain-clamped semiconductor optical amplifier, a structure that contains a lasing mode. The corresponding relaxation oscillations are observed in the temporal gain recovery of the amplifier. The current dependence of the oscillations is well reproduced by a small-signal analysis of the laser rate equations. The gain recovery can be very fast, we measure damping rates of up to 40 GHz.
Title
Time-resolved relaxation oscillations in gain-clamped semiconductor optical amplifiers by pump and probe measurements
Published in
Quantum and Semiclassical Optics
Volume
9
Issue
5
Pages
675-679
Date
1997
ISSN
1355-5111
Note
Hessler, T, ECOLE POLYTECH FED LAUSANNE,INST MICRO & OPTOELECT,CH-1015 LAUSANNE,SWITZERLAND.
ISI Document Delivery No.: YB242
Cited Reference Count: 12
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Record creation date
2007-08-31
