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Beam analysis with improved precision using enhanced SPGD algorithm for up-to-6-mode fiber laser
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Paper Abstract

Analyzing modal contents of arbitrary beams from optical fiber provides useful information for high-power fiber laser and mode-division-multiplexed optical communication. Numerical modal decomposition can be applied to diverse applications universally without complicated setup, but often leads to a false solution which is called as a local minimum. We propose several ways to solve this issue and compare the results to find the best way for global optimization based on stochastic parallel gradient descent algorithm.

Paper Details

Date Published: 7 March 2019
PDF: 5 pages
Proc. SPIE 10897, Fiber Lasers XVI: Technology and Systems, 108972B (7 March 2019); doi: 10.1117/12.2507678
Show Author Affiliations
Kyuhong Choi, Advanced Photonics Research Institute (Korea, Republic of)
Changsu Jun, Advanced Photonics Research Institute (Korea, Republic of)

Published in SPIE Proceedings Vol. 10897:
Fiber Lasers XVI: Technology and Systems
Adrian L. Carter; Liang Dong, Editor(s)

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