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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 33, Iss. 22 — Nov. 15, 2008
  • pp: 2701–2703

Multifilament-core fibers for high energy pulse amplification at 1.5 μ m with excellent beam quality

G. Canat, S. Jetschke, S. Unger, L. Lombard, P. Bourdon, J. Kirchhof, V. Jolivet, A. Dolfi, and O. Vasseur  »View Author Affiliations

Optics Letters, Vol. 33, Issue 22, pp. 2701-2703 (2008)

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We report on what we believe to be the first demonstration of an erbium-ytterbium-doped multifilament-core (MFC) fiber for single-mode amplification of narrow linewidth high peak power pulses. A master-oscillator-power-fiber-amplifier laser source has been demonstrated using a 37-filament MFC fiber in the last amplification stage. Pulses with 750 μ J ( 940 W peak power) and laser linewidth < 1 MHz have beam generated with M 2 1.3 . This value is close to the theoretical value M 2 1.5 .

© 2008 Optical Society of America

OCIS Codes
(060.2280) Fiber optics and optical communications : Fiber design and fabrication
(060.2320) Fiber optics and optical communications : Fiber optics amplifiers and oscillators
(140.3500) Lasers and laser optics : Lasers, erbium
(060.4005) Fiber optics and optical communications : Microstructured fibers

ToC Category:
Fiber Optics and Optical Communications

Original Manuscript: August 18, 2008
Manuscript Accepted: September 30, 2008
Published: November 14, 2008

G. Canat, S. Jetschke, S. Unger, L. Lombard, P. Bourdon, J. Kirchhof, V. Jolivet, A. Dolfi, and O. Vasseur, "Multifilament-core fibers for high energy pulse amplification at 1.5 μm with excellent beam quality," Opt. Lett. 33, 2701-2703 (2008)

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