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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 19 — Sep. 14, 2009
  • pp: 16444–16449

Observation of high-contrast, fast intensity noise of a continuous wave Raman fiber laser

Jochen Schröder and Stéphane Coen  »View Author Affiliations

Optics Express, Vol. 17, Issue 19, pp. 16444-16449 (2009)

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We investigate the intensity noise of a continuous-wave Raman fiber laser based on a novel technique where the noise is sampled with a low repetition rate signal in a low walk-off Raman amplifier configuration. With this method, we experimentally demonstrate that continuous-wave Raman fiber lasers exhibit high contrast intensity fluctuations on a timescale of several tens to hundreds of GHz. In fact, the power of the Raman laser fluctuates between nearly zero and a high multiple of the average power. Numerical simulations are used to study the role of pump depletion on the noise transfer process. Our study validates models of pumps used in some recent continuous wave supercontinuum generation simulations.

© 2009 Optical Society of America

OCIS Codes
(060.2320) Fiber optics and optical communications : Fiber optics amplifiers and oscillators
(140.3550) Lasers and laser optics : Lasers, Raman
(270.2500) Quantum optics : Fluctuations, relaxations, and noise
(320.7100) Ultrafast optics : Ultrafast measurements
(320.6629) Ultrafast optics : Supercontinuum generation

ToC Category:
Lasers and Laser Optics

Original Manuscript: June 29, 2009
Revised Manuscript: August 19, 2009
Manuscript Accepted: August 20, 2009
Published: August 31, 2009

Jochen Schröder and Stéphane Coen, "Observation of high-contrast, fast intensity noise of a continuous wave Raman fiber laser," Opt. Express 17, 16444-16449 (2009)

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