Characteristics of a cw monolithic optical parametric oscillator |
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Authors: | T Ikegami S Slyusarev T Kurosu Y Fukuyama S Ohshima |
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Institution: | (1) National Research Laboratory of Metrology, 1-1-4, Umezono, Tsukuba-Shi, Ibaraki-Ken 305, Japan (Fax: +81-298/50-1456, E-mail: ikegami@nrlm.go.jp), JP |
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Abstract: | 4 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 °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.
Received: 27 January 1998/Revised version: 9 March 1998 |
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Keywords: | PACS: 42 65Yj 42 62 Eh |
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