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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 12 — Jun. 4, 2012
  • pp: 13274–13283

Build up and decay of mode instability in a high power fiber amplifier

Nicoletta Haarlammert, Oliver de Vries, Andreas Liem, Andrea Kliner, Thomas Peschel, Thomas Schreiber, Ramona Eberhardt, and Andreas Tünnermann  »View Author Affiliations


Optics Express, Vol. 20, Issue 12, pp. 13274-13283 (2012)
http://dx.doi.org/10.1364/OE.20.013274


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Abstract

State-of-the-art high power Yb-doped large mode area fibers have been developed to a performance level able to reach the so-called mode instability threshold. In this contribution we will discuss the experimental results regarding the temporal evolution (build up and decay) of this effect to come closer to a comprehensive understanding of its driving mechanisms. Our investigations prove that the relevant time scale for build up and decay of mode instability is in the millisecond range and thus deliver experimental evidence of underlying thermal effects. To the best of our knowledge these are the first systematic, time resolved investigations on that topic.

© 2012 OSA

OCIS Codes
(060.2320) Fiber optics and optical communications : Fiber optics amplifiers and oscillators
(060.2400) Fiber optics and optical communications : Fiber properties
(140.6810) Lasers and laser optics : Thermal effects

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: April 2, 2012
Revised Manuscript: May 18, 2012
Manuscript Accepted: May 21, 2012
Published: May 29, 2012

Citation
Nicoletta Haarlammert, Oliver de Vries, Andreas Liem, Andrea Kliner, Thomas Peschel, Thomas Schreiber, Ramona Eberhardt, and Andreas Tünnermann, "Build up and decay of mode instability in a high power fiber amplifier," Opt. Express 20, 13274-13283 (2012)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-20-12-13274


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References

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