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Optica Publishing Group
  • Quantum Electronics and Laser Science Conference
  • OSA Technical Digest (Optica Publishing Group, 1991),
  • paper QTuI45

Quantum limit on noise in a Raman amplifier

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Abstract

It has been known for a long time that optical amplifiers should have very low noise characteristics because their only noise source would be spontaneous emission. Early theoretical work on the quantum noise limit in an optical amplifier quantified the noise in the amplified signal by use of a noise temperature Tn. In addition, early experiments showed that the noise from an optical amplifier was near the quantum limit when a mode-selecting device was used to ensure detection of only one mode.

© 1991 Optical Society of America

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