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Optics Letters

Optics Letters


  • Editor: Xi-Cheng Zhang
  • Vol. 39, Iss. 9 — May. 1, 2014
  • pp: 2626–2628

High signal-to-noise ratio, single-frequency 2  μm Brillouin fiber laser

Yongfeng Luo, Yulong Tang, Jianlong Yang, Yao Wang, Shiwei Wang, Kunyu Tao, Li Zhan, and Jianqiu Xu  »View Author Affiliations

Optics Letters, Vol. 39, Issue 9, pp. 2626-2628 (2014)

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A high optical signal-to-noise ratio (OSNR) single-frequency 2 μm Brillouin fiber laser (BFL) with watt-level output and high transfer efficiency is demonstrated for the first time to the best of our knowledge. The Brillouin pump is constructed with a two-stage thulium-doped fiber amplifier (TDFA) seeded by a 2 μm laser diode, providing 4.02 W average power with 1 MHz linewidth. Using an optimized length of 14 m for the Brillouin ring cavity, the BFL works stably in single-mode region with 8 kHz linewidth because of the linewidth narrowing effect. The transfer efficiency is 51% with 1.08 W output power and 62 dB OSNR for 3.22 W pump power.

© 2014 Optical Society of America

OCIS Codes
(140.3510) Lasers and laser optics : Lasers, fiber
(260.3060) Physical optics : Infrared
(290.5900) Scattering : Scattering, stimulated Brillouin
(060.3510) Fiber optics and optical communications : Lasers, fiber

ToC Category:
Lasers and Laser Optics

Original Manuscript: January 14, 2014
Revised Manuscript: March 25, 2014
Manuscript Accepted: March 26, 2014
Published: April 22, 2014

Yongfeng Luo, Yulong Tang, Jianlong Yang, Yao Wang, Shiwei Wang, Kunyu Tao, Li Zhan, and Jianqiu Xu, "High signal-to-noise ratio, single-frequency 2  μm Brillouin fiber laser," Opt. Lett. 39, 2626-2628 (2014)

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