Abstract

A system is described for stabilizing a cw dye laser frequency to a high-finesse optical cavity. The length of this optical cavity is locked to a CH4-stabilized He-Ne laser with a tunable frequency-offset technique. A very fast servo system using an intracavity KD*P crystal), a long dye laser cavity, and the stabilized optical cavity result in an absolute frequency stability of 1 kHz for an integration time of 10−4 sec and 300 Hz for 300 sec. Intensity is stabilized to one part in 104.

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