Ultrasensitive second-harmonic generation frequency-resolved optical gating by aperiodically poled LiNbO3 waveguides at 1.5 μm

被引：37
|
作者：
Yang, SD [1 ]
Weiner, AM
Parameswaran, KR
Fejer, MM
机构：
[1] Purdue Univ, W Lafayette, IN 47907 USA
[2] JDS Uniphase, Santa Rosa, CA 95407 USA
[3] Stanford Univ, EL Ginzton Lab, Stanford, CA 94305 USA
来源：
OPTICS LETTERS | 2005年 / 30卷 / 16期
关键词：
D O I：
10.1364/OL.30.002164
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We retrieve intensity and phase profiles of 280 fs, 50 MHz optical pulses with 124 aJ coupled pulse energy (960 photons) by second-harmonic generation (SHG) frequency-resolved optical gating, using aperiodically poled LiNbO3 waveguides. The strong nonlinear interaction that is due to confinement within the micrometer-sized waveguide structure and the linearly chirped poling period contribute, respectively, to high SHG efficiency and broad phase-matching bandwidth. The achieved sensitivity is 2.7 x 10(-6) mW(2), improving on the previous record for self-referenced complete pulse characterization by 5 orders of magnitude. (c) 2005 Optical Society of America.
引用
收藏
页码：2164 / 2166
页数：3
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