Abstract
A compact Faraday effect optical isolator was constructed for visible wavelengths and tested at 5145 Å. The nonreciprocal element of the isolator was polycrystalline zinc selenide placed in the magnetic field of a permanent magnet. For 5145 Å the isolator had a 2.06-dB insertion loss and a 25.5-dB isolation. Indices of refraction and Verdet constants were measured for zinc selenide in the wavelength region from 4700 to 6300 Å.
© 1977 Optical Society of America
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