title: Ultrashort pulse generation from continuous wave by pulse trapping in birefringent fibers.
abstract: 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.
authors.affiliation: Department of Electrical Engineering and Computer Science, Nagoya University, Nagoya, Aichi 464-8603, Japan. shiraki.eiji@e.mbox.nagoya-u.ac.jp
authors.forename: Eiji
authors.initials: E
authors.lastname: Shiraki
authors.forename: Norihiko
authors.initials: N
authors.lastname: Nishizawa
authors.forename: Kazuyoshi
authors.initials: K
authors.lastname: Itoh