Maqola

Adiabatic compression of quadratic temporal solitons in aperiodic quasi-phase-matching gratings

Xianglong ZengInstitute of Industrial Science, The University of Tokyo, Komaba 4‐6‐1, Meguro‐ku, Tokyo, 153‐8505 JapanSatoshi AshiharaInstitute of Industrial Science, The University of Tokyo, Komaba 4‐6‐1, Meguro‐ku, Tokyo, 153‐8505 JapanNobuhide FujiokaInstitute of Industrial Science, The University of Tokyo, Komaba 4‐6‐1, Meguro‐ku, Tokyo, 153‐8505 JapanTsutomu ShimuraInstitute of Industrial Science, The University of Tokyo, Komaba 4‐6‐1, Meguro‐ku, Tokyo, 153‐8505 JapanKazuo KurodaInstitute of Industrial Science, The University of Tokyo, Komaba 4‐6‐1, Meguro‐ku, Tokyo, 153‐8505 Japan

2006en

ABI

Annotatsiya

We numerically show that it is possible to achieve adiabatic compression of femtosecond quadratic solitons in aperiodically poled lithium niobate device. Two-colored solitons of the fundamental wavelength of 1560 nm can be adiabatically shaped by using group-velocity matching schemes available in quasi-phase-matching (QPM) devices. We investigate the performance of the adiabatic compression based on two different group-velocity matching schemes: type-I (e: o + o) collinear QPM geometry and type-0 (e: e + e) non-collinear QPM geometry. Two-colored temporal solitons with pulse duration of 35 fs are generated without visible pedestals from 100-fs fundamental pulse. We also show that walking solitons with shorter pulse durations are adiabatically excited under small group-velocity mismatch condition. The walking solitons experience deceleration or acceleration during compression, depending on the sign of the groupvelocity- mismatch. The demonstrated adiabatic pulse shaping is useful for generation of shorter pulses with clean temporal profiles, efficient femtosecond second harmonic generation and group-velocity control.

Hali tarjima qilinmagan

Identifikatorlar

DOI: 10.1364/oe.14.009358

Iqtiboslar va manbalar

3 ta iqtibos0 ta foydalanilgan manba

Koʻrsatkichlar — AkademScholar