Mode-area scaling of helical-core, dual-clad fiber lasers and amplifiers using an improved bend-loss model
JOSA B, Vol. 23, Issue 10, pp. 2051-2058 (2006)
http://dx.doi.org/10.1364/JOSAB.23.002051
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Abstract
For small-bend radii, the waveguide condition for total internal reflection is violated in a large angular spread of incident angles at the interface of the fiber core. To account for this, we derived an improved semianalytic bend-loss model that allows for the propagation of radiated fields outside the plane of the fiber bend. This new model is applied to large-mode-area helical-core fibers (which require small-bend radii) for use as high-power fiber lasers and amplifiers. In particular, the limits of scaling the mode area while maintaining good beam quality are explored. Single-mode operation is expected for a
© 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
(130.2790) Integrated optics : Guided waves
(140.3510) Lasers and laser optics : Lasers, fiber
(230.7370) Optical devices : Waveguides
ToC Category:
Lasers and Laser Optics
History
Original Manuscript: November 18, 2005
Revised Manuscript: May 17, 2006
Manuscript Accepted: June 28, 2006
Citation
Z. Jiang and J. R. Marciante, "Mode-area scaling of helical-core, dual-clad fiber lasers and amplifiers using an improved bend-loss model," J. Opt. Soc. Am. B 23, 2051-2058 (2006)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-23-10-2051
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