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Optics Letters

Optics Letters


  • Vol. 33, Iss. 9 — May. 1, 2008
  • pp: 1011–1013

Dynamic gain induced pulse shortening in Q-switched lasers

Robert Herda, Samuli Kivistö, and Oleg G. Okhotnikov  »View Author Affiliations

Optics Letters, Vol. 33, Issue 9, pp. 1011-1013 (2008)

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We describe a novel mechanism of pulse shortening in a Q-switched laser induced by the gain compression effect under strong pumping conditions. The pulse shortening requires a large variation of the gain excursion during the saturation process and benefits from the large volume of the gain medium. The effect has been experimentally demonstrated using a passive Q-switched Tm Ho -doped fiber laser that shows gain-induced pulse compression from 800 ns down to 160 ns when the pump threshold is exceeded by 15 times.

© 2008 Optical Society of America

OCIS Codes
(140.3540) Lasers and laser optics : Lasers, Q-switched
(060.3510) Fiber optics and optical communications : Lasers, fiber

ToC Category:
Fiber Optics and Optical Communications

Original Manuscript: January 15, 2008
Revised Manuscript: March 28, 2008
Manuscript Accepted: March 28, 2008
Published: April 30, 2008

Robert Herda, Samuli Kivistö, and Oleg G. Okhotnikov, "Dynamic gain induced pulse shortening in Q-switched lasers," Opt. Lett. 33, 1011-1013 (2008)

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