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Optica Publishing Group
  • Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science and Photonic Applications Systems Technologies
  • Technical Digest (CD) (Optica Publishing Group, 2005),
  • paper JWB4

Atomic and molecular spectroscopy with a phase-locked, continuous-wave optical parametric oscillator

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Abstract

We demonstrated the phase-locking and continuous tuning capabilities of a continuous-wave, monolithic optical parametric oscillator (cw-OPO). At first, the cw-OPO was phase-locked to an optical frequency comb in the 830 nm region. The residual phase noise under phase-locking was 220 mrad in rms and the energy concentration to the carrier was 95 %. Next, the signal light from the cw-OPO was phase-modulated by an external electrooptic modulator (EOM) in the microwave frequency. The single sideband was extracted by using a diffraction grating and a spatial filter. We could observe the Doppler broadened absorption and fluorescence profile of the Cs-D2 line by tuning the signal wavelength to 852nm and by scanning the microwave modulation frequency. We are trying the sub-Doppler spectroscopy of several atoms and molecules with the phase-locked cw- OPO and these results will also be presented.

© 2005 Optical Society of America

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