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Optics Letters

Optics Letters


  • Vol. 21, Iss. 18 — Sep. 15, 1996
  • pp: 1439–1441

Noiseless optical amplification in quasi-phase-matched bulk lithium niobate

D. J. Lovering, J. A. Levenson, P. Vidakovic, J. Webjörn, and P. St. J. Russell  »View Author Affiliations

Optics Letters, Vol. 21, Issue 18, pp. 1439-1441 (1996)

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An optical parametric amplifier (OPA) has been demonstrated in bulk, periodically poled lithium niobate and is shown to operate with a noise figure well below the classical limit. In contrast to conventional OPA's, this device uses quasi-phase matching to provide the coupling between the pump and the signal. Comparison of the measured performance with that of a theoretical model reveals that the main intrinsic contribution to the output noise is due to spatial and temporal mode mixing, which arises as a consequence of tight focusing of the incident beams. Factors that affect the performance of this amplifier are identified theoretically and their relative importance investigated for both amplification and squeezing.

© 1996 Optical Society of America

Original Manuscript: April 18, 1996
Published: September 15, 1996

D. J. Lovering, J. Webjörn, P. St. J. Russell, J. A. Levenson, and P. Vidakovic, "Noiseless optical amplification in quasi-phase-matched bulk lithium niobate," Opt. Lett. 21, 1439-1441 (1996)

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