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Strong influence of nonlinear gain on spectral and dynamic characteristics of InGaAsP lasers

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4 Author(s)
Manning, J. ; GTE Laboratories Incorporated, Waltham, USA ; Olshansky, R. ; Fye, D.M. ; Powazinik, W.

Measurements of the longitudinal-mode spectra of 1.3 ¿m InGaAsP buried-heterostructure lasers are used to determine the form and magnitude of the nonlinear gain. It is shown that nonlinear gain is responsible for the anomalous longitudinal-mode spectra which appear to be universally observed in InGaAsP lasers, and also for the anomalously strong damping of the relaxation oscillations observed in pulse-modulated lasers.

Published in:

Electronics Letters  (Volume:21 ,  Issue: 11 )