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A Duplexed CTFBG with Broad Bandwidth for SRS Suppression in High Power Lasers

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Abstract

CTFBGs with different center wavelengths are cascaded to broad the bandwidth to 20 nm (FWHM). The homemade duplexed CTFBG assists a 20.88 kW output of single fiber laser system with 18.6 dB of SRS suppression.

© 2022 The Author(s)

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