Abstract

We present what is to our knowledge the first measurement of a two-photon transition excited in Rb with a commercial diode laser. In addition to the limitation imposed by diode lasers’ characteristic low powers, their relatively large bandwidths and sensitivity to optical feedback effects impede their application to two-photon spectroscopy. However, we show that optimized signal detection and careful minimization of optical feedback with an acousto-optic modulator combined with a Faraday isolator result in good two-photon signals with an off-the-shelf diode laser.

© 1993 Optical Society of America

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