Abstract

A wavelength independent Faraday isolator has been built using an optically active rotator to compensate the dispersion of a 45° Faraday rotator. Its isolation is better than 30 dB from 735 to 870 nm. Over this wavelength range the measured transmission in the forward direction is better than 80%. Dispersion, temperature, angular tolerance, and other factors affecting the isolation and forward transmission are discussed.

© 1989 Optical Society of America

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