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Phys Rev Lett. 2008 Feb 22;100(7):073901. Epub 2008 Feb 19.

Phase-matched Raman-resonant four-wave mixing in a dispersion-compensated high-finesse optical cavity.

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Graduate School of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, Japan.


A highly efficient intracavity four-wave mixing in a Raman-active medium pumped by a continuous-wave laser is first demonstrated. Managing the intracavity dispersion to satisfy the phase matching in a high-finesse cavity substantially enhances the anti-Stokes emission. This process is observed in a region far beyond small signal approximation, indicating the generation of phase-locked sidebands arising from molecular modulation. This points to a novel approach of an optical modulator and mode-locked laser operating at a frequency of more than 10 THz.

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