Modal fields and bending loss analyses of three-layer large flattened mode fibers

[in Chinese]; [in Chinese]; [in Chinese]; [in Chinese]; [in Chinese]; [in Chinese]

Collection Of theses on high power laser and plasma physics, Volume. 4, Issue 1, 140(2006)

[in Chinese]^*, [in Chinese], [in Chinese], [in Chinese], [in Chinese], and [in Chinese]

National Laboratory on High Power Laser and Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, P.O. Box 800-211, Shanghai 201800, China

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Theoretical method to analyze three-layer large flattened mode (LFM) fibers is presented. The modal fields, including the fundamental and higher order modes, and bending loss of the fiber are analyzed. The reason forming the different modal fields is explained and the feasibility to filter out the higher order modes via bending to realize high power, high beam quality fiber laser is given. Comparisons are made with the standard step-index fiber.

Keywords

Bending loss Large flattened mode fiber Modal fields High power fiber laser

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[in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese]. Modal fields and bending loss analyses of three-layer large flattened mode fibers[J]. Collection Of theses on high power laser and plasma physics, 2006, 4(1): 140

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Paper Information

Received: Jan. 17, 2006

Accepted: --

Published Online: Jun. 4, 2007

The Author Email: (c_j_zhao@yahoo.com.cn)

DOI:

Topics

laser devices and laser physics

Lasers and Laser Optics

Laser physics

laser manufacturing

Instrumentation, Measurement and Metrology