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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 22 — Oct. 22, 2012
  • pp: 24545–24558

Influence of pump and seed modulation on the mode instability thresholds of fiber amplifiers

Arlee V. Smith and Jesse J. Smith  »View Author Affiliations


Optics Express, Vol. 20, Issue 22, pp. 24545-24558 (2012)
http://dx.doi.org/10.1364/OE.20.024545


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Abstract

Using numerical simulations of thermally induced mode coupling we show how the instability threshold can be substantially reduced if the pump or injected signal is modulated in the kHz range. We also show how the mode coupling gain varies with the frequency offset of the parasitic mode. We model thresholds when the source of detuned light is quantum background, amplitude modulation of the pump power, and amplitude modulation of the signal seed. We suggest several key experimental and modeling tests of our model.

© 2012 OSA

OCIS Codes
(060.2320) Fiber optics and optical communications : Fiber optics amplifiers and oscillators
(140.6810) Lasers and laser optics : Thermal effects
(190.4370) Nonlinear optics : Nonlinear optics, fibers
(290.5870) Scattering : Scattering, Rayleigh

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: August 22, 2012
Revised Manuscript: October 2, 2012
Manuscript Accepted: October 9, 2012
Published: October 12, 2012

Citation
Arlee V. Smith and Jesse J. Smith, "Influence of pump and seed modulation on the mode instability thresholds of fiber amplifiers," Opt. Express 20, 24545-24558 (2012)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-20-22-24545


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