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  • 2013 Conference on Lasers and Electro-Optics - International Quantum Electronics Conference
  • (Optica Publishing Group, 2013),
  • paper CD_2_3

Continuous-wave optical modulation at the frequency of molecular motion

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Abstract

The novel scheme for lightwave modulation based on ultrafast modulation of polarizability induced by a coherently excited molecular motion has attracted attention as an alternative to a widely-used optical modulator based on an electro-optic effect to extend it to much higher frequency. A pulsed laser was first used to demonstrate the feasibility of this approach [1], and recently a cavity enhanced continuous-wave (cw) laser was successfully applied to the optical modulation based on the coherent molecular rotations [2]. The efficiency of the sideband generation, however, was considerably low (~10−6) for the cw laser modulation. In the report, the intensity of the cw-based sideband was dramatically improved, approaching 50% for an anti-Stokes sideband, by the fulfillment of a phase-matching condition of the sideband generation.

© 2013 IEEE

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