Abstract

We describe a simple stabilization method where a tunable single mode (594.5 nm) cw dye laser is locked to a stabilized (633 nm) HeNe laser via the 1s 5-2p 4-3s 2 Ne transitions. By using longitudinal Zeeman modulation of the absorber and a circularly polarized HeNe laser beam derivative signals are obtained. Utilization of routine lock-in techniques produces a dye laser frequency stability comparable with that of the reference HeNe laser.

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