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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: G. I. Stegeman
  • Vol. 23, Iss. 4 — Apr. 1, 2006
  • pp: 598–610

Raman-noise-induced quantum limits for χ ( 3 ) nondegenerate phase-sensitive amplification and quadrature squeezing

Paul L. Voss, Kahraman G. Köprülü, and Prem Kumar  »View Author Affiliations


JOSA B, Vol. 23, Issue 4, pp. 598-610 (2006)
http://dx.doi.org/10.1364/JOSAB.23.000598


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Abstract

We present a quantum theory of nondegenerate phase-sensitive parametric amplification in a χ ( 3 ) nonlinear medium. The nonzero response time of the Kerr ( χ ( 3 ) ) nonlinearity determines the quantum-limited noise figure of χ ( 3 ) parametric amplification, as well as the limit on quadrature squeezing. This nonzero response time of the nonlinearity requires coupling of the parametric process to a molecular vibration phonon bath, causing the addition of excess noise through spontaneous Raman scattering. We present analytical expressions for the quantum-limited noise figure of frequency nondegenerate and frequency degenerate χ ( 3 ) parametric amplifiers operated as phase-sensitive amplifiers. We also present results for frequency nondegenerate quadrature squeezing. We show that our nondegenerate squeezing theory agrees with the degenerate squeezing theory of Boivin and Shapiro as degeneracy is approached. We have also included the effect of linear loss on the phase-sensitive process.

© 2006 Optical Society of America

OCIS Codes
(060.2320) Fiber optics and optical communications : Fiber optics amplifiers and oscillators
(270.5290) Quantum optics : Photon statistics

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: February 16, 2005
Revised Manuscript: September 6, 2005
Manuscript Accepted: September 21, 2005

Citation
Paul L. Voss, Kahraman G. Köprülü, and Prem Kumar, "Raman-noise-induced quantum limits for χ(3) nondegenerate phase-sensitive amplification and quadrature squeezing," J. Opt. Soc. Am. B 23, 598-610 (2006)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-23-4-598

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