Temporal solitons in second-harmonic generation with a noncollinear phase-mismatching scheme.
A noncollinear second-harmonic-generation scheme that includes two gratings and a nonlinear optical crystal generates temporal solitons with a noncollinear phase mismatch and frequency-chirped laser pulses. At 180-fs pulse duration, 25-GW/cm2 fundamental intensity, -7647.3-m(-1) wave-vector mismatch, 66-fs delay time, and +/-3.07163 x 10(25) s(-2) frequency-chirp rates, temporal solitons with durations from 139 to 155 fs and Gaussian shapes can be obtained. The corresponding conversion efficiency is greater than 40%.
Zhang
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Faculty of Engineering, Yamanashi University, Takeda 4-3-11, Kofu, Yamanashi 400-8511, Japan. zhang@ccn.yamanashi.ac.jp
Yamakawa
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Aoyama
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Yonemura
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