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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 14, Iss. 20 — Oct. 2, 2006
  • pp: 9042–9050

Side mode suppression using a doped fiber in a long external-cavity semiconductor laser operating at 1490 nm

Runnan Liu, Irina A. Kostko, Ke Wu, and Raman Kashyap  »View Author Affiliations

Optics Express, Vol. 14, Issue 20, pp. 9042-9050 (2006)

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We report on the spectral analysis of the first 1490 nm external cavity laser with an intra-cavity erbium-doped fiber. Self-mode beating and heterodyne beating methods are employed to measure the side mode suppression ratios and to study the effect of the rare-earth doped fiber on the spectrum of the external-cavity laser. Experimental and simulated results show a substantial decrease in the number of the external-cavity modes and a side-mode suppression ratio of >15 dB.

© 2006 Optical Society of America

OCIS Codes
(030.4070) Coherence and statistical optics : Modes
(060.2410) Fiber optics and optical communications : Fibers, erbium
(140.3510) Lasers and laser optics : Lasers, fiber

ToC Category:
Fiber Optics and Optical Communications

Original Manuscript: August 16, 2006
Manuscript Accepted: September 18, 2006
Published: October 2, 2006

Runnan Liu, Irina A. Kostko, Ke Wu, and Raman Kashyap, "Side mode suppression using a doped fiber in a long external-cavity semiconductor laser operating at 1490 nm," Opt. Express 14, 9042-9050 (2006)

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