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Browse Journals & Magazines > Electronics Letters ...> Volume:27 Issue:3 Help

Effect of nonlinear gain on intensity noise in single-mode semiconductor lasers

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1 Author(s)
Agrawal, G.P. ; Inst. of Optics, Rochester Univ., NY, USA

The effect of nonlinear gain on the intensity noise of semiconductor lasers is studied by solving the single-mode rate equation with the Langevin noise term. The analytic expressions for the relative intensity noise and the intensity autocorrelation function are obtained by using a form of the nonlinear gain that is valid even at high operating power levels. These are used to obtain a simple expression for the signal-to-noise ratio (SNR) of the laser output. The SNR is found to saturate to a limiting value of about 30 dB at high powers because of the nonlinear-gain effects related to intraband gain saturation.

Published in:
Electronics Letters  (Volume:27 ,  Issue: 3 )

Date of Publication: 31 Jan. 1991

Page(s):
232 - 234
ISSN :
0013-5194
INSPEC Accession Number:
3867266
Digital Object Identifier :
10.1049/el:19910150
Product Type:
Journals & Magazines
Date of Current Version :
06 August 2002
Issue Date :
31 Jan. 1991
Sponsored by :
Institution of Engineering and Technology

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