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Optics Letters

Optics Letters

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  • Vol. 29, Iss. 12 — Jun. 15, 2004
  • pp: 1387–1389

Passive stabilization of a passively mode-locked laser by nonlinear absorption in indium phosphide

Pavel Černý, Gareth Valentine, David Burns, and Kenneth McEwan  »View Author Affiliations


Optics Letters, Vol. 29, Issue 12, pp. 1387-1389 (2004)
http://dx.doi.org/10.1364/OL.29.001387


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Abstract

A diode-pumped Nd:KGd(WO4)2 laser mode locked by a saturable Bragg reflector (SBR) is passively stabilized to suppress Q -switched mode locking and to extend the parameter range of continuous-wave mode locking. An indium phosphide plate exhibiting two-photon absorption and free-carrier absorption is used for passive stabilization. The intracavity pulse energy for the onset of stable continuous-wave mode locking is reduced by a factor of 4 compared with the laser without stabilization. By increasing the modulation depth of the SBR, pulse shortening by 30% is achieved and bandwidth-limited 6.2-ps pulses are measured.

© 2004 Optical Society of America

OCIS Codes
(140.3580) Lasers and laser optics : Lasers, solid-state
(140.4050) Lasers and laser optics : Mode-locked lasers

Citation
Pavel Černý, Gareth Valentine, David Burns, and Kenneth McEwan, "Passive stabilization of a passively mode-locked laser by nonlinear absorption in indium phosphide," Opt. Lett. 29, 1387-1389 (2004)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-29-12-1387

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