Low-NA single-mode LMA photonic crystal fiber amplifier

Publication: Research - peer-reviewConference article – Annual report year: 2011

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Enabling Single-Mode (SM) operation in Large-Mode-Area (LMA) fiber amplifiers and lasers is critical, since a SM output ensures high beam quality and excellent pointing stability. In this paper, we demonstrate and test a new design approach for achieving ultra-low NA SM rod fibers by using a spatially Distributed Mode Filter (DMF). This approach achieves SM performance in a short and straight rod fiber and allows preform tolerances to be compensated during draw. A low-NA SM rod fiber amplifier having a mode field diameter of ~60μm at 1064nm and a pump absorption of 27dB/m at 976nm is demonstrated.
Original languageEnglish
JournalProceedings of SPIE, the International Society for Optical Engineering
Publication date2011
Volume7914
Pages79141S
ISSN0277-786X
DOIs
StatePublished

Conference

ConferenceFiber Lasers 8
Number8
CountryUnited States
CitySan Francisco, CA
Period24/01/1127/01/11
CitationsWeb of Science® Times Cited: 0
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