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Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Anthony J. Campillo
  • Vol. 31, Iss. 1 — Jan. 1, 2006
  • pp: 17–19

High-power single-polarization and single-transverse-mode fiber laser with an all-fiber cavity and fiber-grating stabilized spectrum

Chi-Hung Liu, Almantas Galvanauskas, Victor Khitrov, Bryce Samson, Upendra Manyam, Kanishka Tankala, David Machewirth, and Stefan Heinemann  »View Author Affiliations


Optics Letters, Vol. 31, Issue 1, pp. 17-19 (2006)
http://dx.doi.org/10.1364/OL.31.000017


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Abstract

Conventionally, large-mode-area (LMA) fiber lasers use free-space polarizing components to achieve linear polarization output. External components, however, significantly limit laser robustness and power scalability. We demonstrate, to the best of our knowledge, the first high-power all-fiber cavity single-polarization single-transverse-mode LMA fiber laser, without the use of free-space polarizing components. This has been achieved by using tightly coiled high-birefringence 20 μ m core LMA fiber. The lasing spectrum at 1085 nm has been stabilized by a fiber grating, spliced at one end of a LMA fiber. Up to 405 W of single-polarization output with a polarization extinction of > 19 dB with a narrow spectrum ( 1.9 nm FWHM) and in a single-transverse mode ( M 2 < 1.1 ) has been demonstrated. The simplicity of a monolithic-cavity approach is highly beneficial for a number of applications, including the use of a fiber laser for nonlinear wavelength conversion and for coherent and spectral beam combining.

© 2006 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

ToC Category:
Fiber Optics and Optical Communications

Citation
Chi-Hung Liu, Almantas Galvanauskas, Victor Khitrov, Bryce Samson, Upendra Manyam, Kanishka Tankala, David Machewirth, and Stefan Heinemann, "High-power single-polarization and single-transverse-mode fiber laser with an all-fiber cavity and fiber-grating stabilized spectrum," Opt. Lett. 31, 17-19 (2006)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-31-1-17


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