Abstract

We propose a new tunable linear laser oscillator–amplifier system that incorporates a Fizeau wedge with unequal mirrors as the coupler. Because of asymmetry in reflection and wedge focusing in unequal mirrors, our system acts as a highly efficient selector in the oscillator and practically eliminates reinjection of spontaneous emission in the amplifier. We studied the wedge action by developing a procedure for the calculation of reflected interference patterns at a distance from the wedge. Using this procedure we found the feedback factors for both the oscillator and the amplifier. Background emission levels of less than 1% of the peak intensity in the emitted line were experimentally obtained.

© 2001 Optical Society of America

Scanning a 1-GHz pulsed dye laser line with a piezoelectric reflecting wedge

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Appl. Opt. 24(5) 682-685 (1985)

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