Group-velocity-matched noncollinear second-harmonic generation in quasi-phase matching

被引：22

作者：

Fujioka, N ^{[1
]}

Ashihara, S ^{[1
]}

Ono, H ^{[1
]}

Shimura, T ^{[1
]}

Kuroda, K ^{[1
]}

机构：

[1] Univ Tokyo, Inst Ind Sci, Meguro Ku, Tokyo 1538505, Japan

来源：

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS | 2005年 / 22卷 / 06期

关键词：

D O I：

10.1364/JOSAB.22.001283

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We demonstrate group-velocity-matched second-harmonic generation of 80-fs pulses under noncollinear quasi-phase-matching (QPM) geometry. Second-harmonic pulses of 100-fs duration, 11-nm bandwidth, and 0.78-mu m center wavelength were generated with 50% efficiency with 3-mm-long periodically poled lithium niobate. We have also numerically studied the dependence of conversion efficiency and pulse durations on pump intensity, propagation length, and noncollinear angle. It is confirmed that our group-velocity-matching scheme requires a much lower pump intensity than the conventional collinear QPM scheme. (C) 2005 Optical Society of America.

引用

页码：1283 / 1289

页数：7

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