Control of laser radiation parameters

Instability of stationary lasing and self-starting mode locking in external-cavity semiconductor lasers

I. V. Smetanin, P. P. Vasil'ev

P. N. Lebedev Physical Institute, Russian Academy of Sciences, Moscow

Abstract: Parameters of external-cavity semiconductor lasers, when the stationary lasing becomes unstable, were analysed within the framework of a theoretical model of self-starting mode locking. In this case, a train of ultrashort pulses can be generated due to intrinsic nonlinearities of the laser medium. A decisive role of the transverse optical field nonuniformity, pump rate, and gain spectral bandwidth in the development of the instability of stationary lasing was demonstrated.

PACS: 42.60.DA, 42.60.Fc, 42.55.Px

Received: 13.02.2008
Revised: 26.05.2008

 English version: Quantum Electronics, 2009, 39:1, 36–42

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