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Conferences > QELS > 1991 > QWI > QWI3
  • Quantum Electronics and Laser Science Conference
  • OSA Technical Digest (Optica Publishing Group, 1991),
  • paper QWI3

Above-threshold optical amplifier

M. Harris, R. Loudon, J. W. H. Perry, T. J. Shepherd, and J M. Vaughan

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Abstract

We describe a straightforward experimental technique that is potentially a powerful tool for laser diagnostics. Light from a single-mode laser is frequency shifted by acousto-optic modulators, then reintroduced to the laser cavity and studied by light-beating (heterodyne) methods. The laser amplifies the return signal. Studies of the gain and bandwidth of this above-threshold amplifier reveal several novel features that can be related to the below-threshold amplifier1,2

© 1991 Optical Society of America

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