Open AccessTrapped pulse generation by femtosecond soliton pulse in birefringent optical fibers
Author(s) -
Norihiko Nishizawa,
Toshio Goto
Publication year - 2002
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.10.000256
Subject(s) - optics , multiphoton intrapulse interference phase scan , femtosecond pulse shaping , bandwidth limited pulse , pulse (music) , femtosecond , ultrashort pulse , frequency resolved optical gating , soliton , birefringence , pulse shaping , materials science , physics , laser , nonlinear system , quantum mechanics , detector
A novel phenomenon of trapped pulse generation by orthogonally polarized femtosecond soliton pulse is discovered in low birefringent optical fiber. As pulse propagation, wavelengths of soliton pulse and trapped pulse are shifted toward longer wavelength side due to effects of soliton selffrequency shift and pulse trapping. The energy of trapped pulse is increased exponentially through Raman gain of soliton pulse and orthogonally polarized and temporally overlapped two colored femtosecond twin pulses are generated. The spectrogram of output pulses is observed using crosscorrelation frequency resolved optical gating technique. The characteristics of this phenomenon are also analyzed numerically and numerical results are almost in agreement with experimental ones.