Integrated Photonics, Inc.

Steve J Licht

Vincent Jerome Fratello

Robert Ralph Abbott

Irina Mnushkina

Faraday rotator garnet thick films have improved specific Faraday rotations without requiring a bias magnet. Films of nominal composition Bi (Eu Ho ) Fe Ga O are grown lattice matched to available &lcub;Gd Ca &rcub;&lsqb;Ga Mg Zr &rsqb;(Ga )O substrates. The film is prepared with Z &lE;0.45, which allows higher concentrations of Bi to be included in the film than prior compositions. The increased amount of Bi results in a higher specific Faraday rotations for the film. For devices such as non-reciprocal optoelectronic devices that require 45-degree rotators, the increased specific Faraday rotation results in the use of thinner films of reduced path length as well as increased crystal growth yields.

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Bridgewater, NJ, United States of America

Steve J Licht