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Backward-pumped 1550 nm EYDF amplifier with ASE suppression by cladding feedback

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We demonstrate a backward-pumped 1550 nm EYDF amplifier with ASE suppression by cladding feedback. Compared with the typical backward-pumped amplifier without feedback, the ASE power can be suppressed by over 2 dB without other filters.

© 2016 Optical Society of America

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