, Volume 75, Issue 1, pp 127-130

Harmonically mode-locked laser stabilized by semiconductor saturable absorber modulated with the residual pump

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Abstract.

Stabilization of a passive harmonically mode-locked laser is demonstrated by directly modulating a 980-nm pump diode laser used both to provide gain and to optically modulate an intracavity saturable absorber. The results indicate a reduction of the undesired laser modes by more than 55 dB. The timing jitter was decreased by 9 dB.

Received: 3 April 2002 / Revised version: 30 April 2002 / Published online: 12 July 2002