Mid-infrared difference-frequency generation in periodically poled KTiOAsO4 and application to gas sensing

被引：46

作者：

Fradkin-Kashi, K ^{[1
]}

Arie, A ^{[1
]}

Urenski, P ^{[1
]}

Rosenman, G ^{[1
]}

机构：

[1] Tel Aviv Univ, Fac Engn, Dept Elect Engn Phys Elect, IL-69978 Tel Aviv, Israel

来源：

OPTICS LETTERS | 2000年 / 25卷 / 10期

关键词：

D O I：

10.1364/OL.25.000743

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Tunable mid-infrared radiation (3.45-3.75 mu m) with a power level of 0.14 mu W is generated by quasi-phase-matched difference-frequency mixing of a Nd:YAG laser and a tunable-diode laser (near 1.5 mu m) in multigrating periodically poled KTiOAsO4. The wavelength and temperature bandwidths are approximate to 65 nm cm and approximate to 62 degrees C cm, respectively. The temperature-tuning slope of the phase-matched idler wavelength, -0.94 nm/degrees C, is almost twice that of periodically poled KTiOPO4. We use the measurements to derive a mid-infrared-corrected Sellmeier equation for the Z axis of KTiOAsO4. The generated mid-infrared radiation is applied to sensitive high-resolution spectroscopy of the vs band of methane. (C) 2000 Optical Society of America.

引用

页码：743 / 745

页数：3

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