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Opt Express. 2010 Oct 25;18(22):23070-8. doi: 10.1364/OE.18.023070.

Ultrashort pulse generation from continuous wave by pulse trapping in birefringent fibers.

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  • 1Department of Electrical Engineering and Computer Science, Nagoya University, Nagoya, Aichi 464-8603, Japan.


We investigated the phenomenon of orthogonally polarized pulse trapping between a continuous-wave beam and an ultrashort soliton pulse in birefringent fibers both experimentally and numerically. Using pulse trapping and amplification, we demonstrated ultrashort pulse generation from a continuous-wave beam. The generated pulse had a nearly transform-limited sech(2)-shape and a temporal width of 350 fs. The obtained maximum pulse energy was 300 pJ using a 400 m-long low-birefringence fiber, and the corresponding gain was as large as 41 dB.

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