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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Anthony J. Campillo
  • Vol. 32, Iss. 4 — Feb. 15, 2007
  • pp: 355–357

Efficient operation of diode-pumped single-frequency thulium-doped fiber lasers near 2 μ m

Jihong Geng, Jianfeng Wu, Shibin Jiang, and Jirong Yu  »View Author Affiliations


Optics Letters, Vol. 32, Issue 4, pp. 355-357 (2007)
http://dx.doi.org/10.1364/OL.32.000355


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Abstract

Efficient operation of diode-pumped single-frequency fiber lasers at wavelengths from 1740 to 2017 nm has been demonstrated by using a very short piece of newly developed single-mode active fiber, i.e., heavily thulium-doped germanate glass fiber. At 1893 nm , the single-frequency fiber laser has a pump threshold of 30 mW , a slope efficiency of 35%, and maximum output power of 50 mW with respect to the launched power of single-mode pump diodes at 805 nm . To the best of our knowledge, this is the highest lasing efficiency achieved in single-frequency fiber lasers operating near 2 μ m . Frequency noise of the single-frequency fiber laser at 1893 nm has been characterized and compared with that of single-frequency fiber lasers at 1 and 1.55 μ m .

© 2007 Optical Society of America

OCIS Codes
(060.2320) Fiber optics and optical communications : Fiber optics amplifiers and oscillators
(140.3570) Lasers and laser optics : Lasers, single-mode
(140.5680) Lasers and laser optics : Rare earth and transition metal solid-state lasers

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: October 2, 2006
Revised Manuscript: November 6, 2006
Manuscript Accepted: November 7, 2006
Published: January 26, 2007

Citation
Jihong Geng, Jianfeng Wu, Shibin Jiang, and Jirong Yu, "Efficient operation of diode-pumped single-frequency thulium-doped fiber lasers near 2 μm," Opt. Lett. 32, 355-357 (2007)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-32-4-355

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