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Optics Letters

Optics Letters


  • Vol. 24, Iss. 15 — Aug. 1, 1999
  • pp: 1074–1076

Nonlinearly limited saturable-absorber mode locking of an erbium fiber laser

M. Jiang, G. Sucha, M.E. Fermann, J. Jimenez, D. Harter, M. Dagenais, S. Fox, and Y. Hu  »View Author Affiliations

Optics Letters, Vol. 24, Issue 15, pp. 1074-1076 (1999)

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We describe an erbium fiber laser that is passively mode locked by a novel, precision antireflection-coated semiconductor saturable-absorber mirror that incorporates an additional two-photon absorber. It is shown that passive mode locking evolves from a Q-switching instability. The results are achieved by use of saturable absorbers that provide a large (15%) nonlinear (saturable) loss. Exploiting two-photon absorption can substantially reduce the peak power of the Q-switched pulses, which results in improved reliability of the laser. Moreover, two-photon absorption can be used to produce an optimal stability range for saturable-absorber mode locking.

© 1999 Optical Society of America

OCIS Codes
(140.3500) Lasers and laser optics : Lasers, erbium
(140.3510) Lasers and laser optics : Lasers, fiber
(140.4050) Lasers and laser optics : Mode-locked lasers
(320.7090) Ultrafast optics : Ultrafast lasers
(320.7110) Ultrafast optics : Ultrafast nonlinear optics
(320.7160) Ultrafast optics : Ultrafast technology

M. Jiang, G. Sucha, M.E. Fermann, J. Jimenez, D. Harter, M. Dagenais, S. Fox, and Y. Hu, "Nonlinearly limited saturable-absorber mode locking of an erbium fiber laser," Opt. Lett. 24, 1074-1076 (1999)

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