Design and optimization of a novel structure for efficient side-coupling of high power double-cladding fiber lasers
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TN253

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    Abstract:

    A novel structure for efficient side-coupling of high power double-cladding fiber lasers is presented. The maximum coupling efficiency of this structure is more than 90% for TM-polarization in the 1 and -1 order but is only 40% for TE-polarization. Thus, a multi-layer stair-structure is introduced and optimized by combining transmission algorithm and genetic algorithm to obtain higher coupling efficiency η for TE-polarization and the maximum coupling efficiency almost reaches to 70%.

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Fan Zhang, Chun-can Wang, Geng Rui, Shui-sheng Jian. Design and optimization of a novel structure for efficient side-coupling of high power double-cladding fiber lasers[J]. Optoelectronics Letters,2007,3(5):349-352

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  • Received:January 22,2007
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