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Noise figure of saturated 1310-nm polarization insensitive multiple-quantum-well optical amplifiers

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5 Author(s)
Tiemeijer, L.F. ; Philips Optoelectron. Centre, Eindhoven, Netherlands ; Thijs, P.J.A. ; Van Dongen, T. ; Binsma, J.J.M.
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The noise figure degradation due to saturation by amplified spontaneous emission of high-gain 1310-nm polarization insensitive multiple-quantum-well optical amplifiers has been investigated systematically by studying amplifiers of different lengths. It is found that the intrinsic noise figure of 4 dB of a device with 20-dB single-pass gain is degraded to about 5 dB for a device having 36-dB single-pass gain. This degradation in noise figure is very modest, compared to results reported earlier for semiconductor optical amplifiers with bulk-gain media, illustrating the benefits of using a quantum-well gain medium in semiconductor optical amplifiers.

Published in:

Photonics Technology Letters, IEEE  (Volume:8 ,  Issue: 7 )