Characteristics of a cw monolithic KTiOPO4 optical parametric oscillator

被引：22

作者：

Ikegami, T ^{[1
]}

Slyusarev, S ^{[1
]}

Kurosu, T ^{[1
]}

Fukuyama, Y ^{[1
]}

Ohshima, S ^{[1
]}

机构：

[1] Natl Res Lab Metrol, Tsukuba, Ibaraki 305, Japan

来源：

APPLIED PHYSICS B-LASERS AND OPTICS | 1998年 / 66卷 / 06期

关键词：

D O I：

10.1007/s003400050458

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We developed a doubly resonant, cw monolithic optical parametric oscillator (OPO) characterized by a low threshold and stable long-term operation for use as a light source for optical frequency measurement. We used KTiOPO4 as a nonlinear crystal and obtained a pump threshold of 7 mW and an output power of 6 mW for a pump power of 40 mW. The OPO operated in a single longitudinal mode pair of a signal and an idler, over 1 h without mode hopping in the free-running condition. The signal and the idler wavelengths were tunable by 1 nm by changing the crystal temperature by 20 degrees C. The continuous tuning of the beat frequency between the signal and the idler was achieved by temperature tuning (slow control, 80 MHz/K) and E-field tuning (fast control, 0.75 MHz/V). We demonstrated the feasibility of frequency control by phase locking the beat frequency. The beat frequency could be successfully phase locked to a signal generated by a synthesizer through the electrooptic effect of the crystal. The phase locking could be maintained over 1 h.

引用

页码：719 / 725

页数：7

共 38 条

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