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Soviet Journal of Quantum Electronics

Maximum gain of a multistage laser amplifier

A. I. Makarov, A. K. Potemkin

Published May 31, 1985• 1 citation
Publisher

Abstract

An investigation was made of the energy, spectral, angular, and temporal characteristics of superradiance emitted by a multistage neodymium glass amplifier with a gain of ~107. Superradiance was found to affect significantly the operation of the amplifier only when the gain reached ~107– 108.
DOI
10.1070/qe1985v015n05abeh007080

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The results are reported of investigations into the spectral and energy characteristics of a thallium photodissociation laser, emitting due to the 7S/sub 1/2/--6P/sub 3/2/ (lambda = 535 nm) and 7S/sub 1/2/--6P/sub 1/2/ (lambda = 337.6 nm) transitions. The experiments were performed using two types of resonator, and this made it possible to increase the radiation power density above the superradiance level and to operate in two-wavelength lasing regimes. On reaching a certain power density the structure of the laser emission spectrum changed, the nature of this change being different for the different lines. A discussion of the results obtained is given.
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