Doppler-free spectroscopy using a continuous-wave optical frequency synthesizer
A continuous-wave (cw) optical frequency synthesizer is demonstrated by using a monolithic-type cw optical parametric oscillator (cw-OPO) and an optical frequency comb. The cw-OPO is phase locked to an optical frequency comb that is phase locked to an atomic clock. The output frequency of the cw-OPO is frequency shifted with an electro-optic modulator, which makes it possible to tune the frequency continuously oeuvre GHz. Furthermore, Doppler-free spectroscopy is performed using the optical frequency synthesizer for a cesium D1 line at 895 nm. The observed linewidth of 5 MHz is the natural linewidth of cesium. The center frequency of the line is consistent with a previous report.
- OSTI ID:
- 20853321
- Journal Information:
- Applied Optics, Journal Name: Applied Optics Journal Issue: 20 Vol. 45; ISSN 0003-6935; ISSN APOPAI
- Country of Publication:
- United States
- Language:
- English
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