Abstract

We describe the effects of incoherent pump on an atomic filter based on laser-induced optical anisotropy in a three-level ladder system interacting with a strong pump polarized circularly and a weak probe polarized linearly. According to the analysis of the numerical simulation results with some comparison, at the same time of eliminating noise, the filter can enhance the probe’s transmission or even the probe gain can be achieved without population inversion. Moreover, the incoherent pumping rate and the cell temperature performance are evaluated and measures are taken to improve the filter’s transmission and tunability by selecting proper parameters.

© 2012 Optical Society of America

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