Abstract

We report an excited-state Faraday anomalous-dispersion optical filter operating on the rubidium $5P_{3/2}–5D_{5/2}$ transition ($775.9\mathrm{nm}$ in vacuum) without the use of a pump laser. An electrodeless discharge vapor lamp is employed to replace the Rb vapor cell in a traditional Faraday anomalous-dispersion optical filter system. Atoms can be excited by power rather than a complex frequency-locked pump laser. A proof-of-concept experimental demonstration with a maximum transmission of 1.9% and a filter bandwidth of $650\mathrm{MHz}$ is presented.

© 2011 Optical Society of America

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