Evaluation of domain randomness in periodically poled lithium niobate by diffraction noise measurement

被引：7

作者：

Dwivedi, Prashant Povel ^{[1
]}

Choi, Hee Joo ^{[1
]}

Kim, Byoung Joo ^{[1
]}

Cha, Myoungsik ^{[1
]}

机构：

[1] Pusan Natl Univ, Dept Phys, Pusan 609735, South Korea

来源：

OPTICS EXPRESS | 2013年 / 21卷 / 25期

关键词：

DUTY-CYCLE ERRORS; UP-CONVERSION; GENERATION; CONVERTERS; CRYSTALS; DEVICES;

D O I：

10.1364/OE.21.030221

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Random duty-cycle errors (RDE) in ferroelectric quasi-phase-matching (QPM) devices not only affect the frequency conversion efficiency, but also generate non-phase-matched parasitic noise that can be detrimental to some applications. We demonstrate an accurate but simple method for measuring the RDE in periodically poled lithium niobate. Due to the equivalence between the undepleted harmonic generation spectrum and the diffraction pattern from the QPM grating, we employed linear diffraction measurement which is much simpler than tunable harmonic generation experiments [J. S. Pelc, et al., Opt. Lett. 36, 864-866 (2011)]. As a result, we could relate the RDE for the QPM device to the relative noise intensity between the diffraction orders. (C) 2013 Optical Society of America

引用

收藏

页码：30221 / 30226

页数：6

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