✦ LIBER ✦

The Q-switching instability in passively mode-locked lasers

✍ Scribed by Theodore Kolokolnikov; Michel Nizette; Thomas Erneux; Nicolas Joly; Serge Bielawski

Publisher: Elsevier Science
Year: 2006
Tongue: English
Weight: 680 KB
Volume: 219
Category: Article
ISSN: 0167-2789
DOI: 10.1016/j.physd.2006.05.006

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✦ Synopsis

A new asymptotic analysis of the equations for a mode-locked laser exhibiting a Q-switching instability is proposed. We determine the Hopf bifurcation point responsible for this instability and discuss its behavior in terms of the laser parameters. Our analysis is valid for all class B lasers exhibiting slowly damped relaxation oscillations which include solid state and semiconductor lasers. In the limit of weak nonlinearities, we recover Haus stability conditions. In the case of strongly nonlinear losses, as for the usual picosecond and femtosecond laser devices, we determine the stability conditions.

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