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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 15, Iss. 2 — Jan. 22, 2007
  • pp: 363–370

Short cavity single frequency fiber laser for in-situ sensing applications over a wide temperature range

Yonghang Shen, Yanqing Qiu, Bo Wu, Weizhong Zhao, Shuying Chen, Tong Sun, and Kenneth T. V. Grattan  »View Author Affiliations

Optics Express, Vol. 15, Issue 2, pp. 363-370 (2007)

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A novel Er-doped silica fiber, with heavy Er doping, was specially developed for application to a single frequency fiber laser. Two high temperature-sustainable fiber Bragg gratings, written into Bi-Ge codoped photosensitive fiber, were chosen for the application and spliced to the specialist Er doped silica fiber to form a compact, linear cavity, fiber laser. The fiber laser retained single mode oscillation over a wide temperature range, from room temperature to 400 °C. The wavelength of the laser output could be tuned smoothly, without mode hopping being observed, when the temperature was changed. A narrow linewidth of less than 1 kHz was measured at the output of fiber laser and this indicates the potential of the fibre laser sensing system with extremely high sensitivity and resolution over this wide range.

© 2007 Optical Society of America

OCIS Codes
(060.2290) Fiber optics and optical communications : Fiber materials
(060.2320) Fiber optics and optical communications : Fiber optics amplifiers and oscillators
(060.2340) Fiber optics and optical communications : Fiber optics components
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(060.2410) Fiber optics and optical communications : Fibers, erbium

ToC Category:
Fiber Optics and Optical Communications

Original Manuscript: October 3, 2006
Revised Manuscript: December 6, 2006
Manuscript Accepted: December 12, 2006
Published: January 22, 2007

Yonghang Shen, Yanqing Qiu, Bo Wu, Weizhong Zhao, Shuying Chen, Tong Sun, and Kenneth T. V. Grattan, "Short cavity single frequency fiber laser for in-situ sensing applications over a wide temperature range," Opt. Express 15, 363-370 (2007)

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