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Proceedings Paper

Linearly polarized high-power fiber lasers with monolithic PM-LMA-fiber and LMA-grating based cavities and their use for nonlinear wavelength conversion
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Paper Abstract

We report our recent progress in designing and manufacturing new, completely monolithic, linearly polarized, continuous wave (CW) fiber lasers that provide more than 300W of output power in a near diffraction limited, single transverse mode, spectrally stabilized output beam having a narrow line-width. The demonstrated design is simple and practical: the monolithic laser cavity may consist of only a coil of polarization maintaining (PM), large mode area (LMA) active fiber having a fiber Bragg grating (FBG) at one end and a fiber cleave at the other end. Proper selection of the coil diameter enables gain in only one polarization mode so as to provide the linearly polarized output. Fiber lasers built using this novel technique do not require any external polarizing components or the use of polarizing fiber. Such compact and robust fiber lasers are suitable for a variety of applications, such as multi-kW power scaling through coherent beam combining, nonlinear wavelength conversion processes using a variety of nonlinear materials, etc.

Paper Details

Date Published: 22 April 2005
PDF: 6 pages
Proc. SPIE 5709, Fiber Lasers II: Technology, Systems, and Applications, (22 April 2005); doi: 10.1117/12.590825
Show Author Affiliations
V. Khitrov, Nufern (United States)
B. Samson, Nufern (United States)
U. Manyam, Nufern (United States)
K. Tankala, Nufern (United States)
D. Machewirth, Nufern (United States)
S. Heinemann, Fraunhofer USA (United States)
C. Liu, Univ. of Michigan (United States)
A. Galvanauskas, Univ. of Michigan (United States)


Published in SPIE Proceedings Vol. 5709:
Fiber Lasers II: Technology, Systems, and Applications
L. N. Durvasula; Andrew J. W. Brown; Johan Nilsson, Editor(s)

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