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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 34, Iss. 16 — Aug. 15, 2009
  • pp: 2516–2518

Intensity noise of mode-locked fiber lasers

Ibrahim Levent Budunoğlu, Coşkun Ülgüdür, Bulent Oktem, and Fatih Ömer Ilday  »View Author Affiliations

Optics Letters, Vol. 34, Issue 16, pp. 2516-2518 (2009)

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Intensity noise of mode-locked fiber lasers is characterized systematically for all major mode-locking regimes over a wide range of parameters. We find that equally low-noise performance can be obtained in all regimes. Losses in the cavity influence noise strongly without a clear trace in the pulse characteristics. Given that high-energy fiber laser oscillators reported to date have utilized large output coupling ratios, they are likely to have had high noise. Instabilities that occur at high pulse energies are characterized. Noise level is virtually independent of pulse energy below a threshold for the onset of nonlinearly induced instabilities. Continuous-wave peak formation and multiple pulsing influence noise performance moderately. At high energies, a noise outburst is encountered, resulting in up to 2 orders of magnitude increase in noise. These results effectively constitute guidelines for minimization of the laser noise in mode-locked fiber lasers.

© 2009 Optical Society of America

OCIS Codes
(060.2320) Fiber optics and optical communications : Fiber optics amplifiers and oscillators
(320.7090) Ultrafast optics : Ultrafast lasers
(060.3510) Fiber optics and optical communications : Lasers, fiber

ToC Category:
Fiber Optics and Optical Communications

Original Manuscript: May 6, 2009
Revised Manuscript: July 11, 2009
Manuscript Accepted: July 14, 2009
Published: August 14, 2009

Ibrahim Levent Budunoğlu, Coşkun Ülgüdür, Bulent Oktem, and Fatih Ömer Ilday, "Intensity noise of mode-locked fiber lasers," Opt. Lett. 34, 2516-2518 (2009)

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