Transfer of amplitude and phase modulation to a different wavelength using coherently prepared sodium vapor
Ryan S. Bennink, Alberto M. Marino, Vincent Wong, Robert W. Boyd, and C. R. Stroud, Jr.
Phys. Rev. A 72, 023827 (2005).
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We present a scheme, based on coherent Raman scattering, to transfer the complete information
content of an optical field from one spectral band to another with good efficiency, high fidelity,
and large bandwidth. We demonstrate the transfer of both amplitude and phase modulation to new
frequencies by scattering in a coherently prepared sodium vapor. The scattering process for this
system has a bandwidth of at least tens of MHz and preserves the field envelope with a fidelity
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