LASER LINEWIDTH WITH GAIN COMPRESSION

J. Arnaud, Laurent Chusseau, Fabrice Philippe

Electronics Letters, Volume 27, Issue 25, 5 December 1991, p. 2354 – 2356

ABSTRACT

An exact yet simple expression for the linewidth of laser diodes based on the Nyquist formula is given. The expression applies to the case where the optical gain depends on both the carrier and photon numbers and differs from the expression derived from standard rate equations. Gain compression in conjunction with an electrical conductance may reduce both the linewidth and the intensity noise.

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