Optical isolation in Cd_1–xMn_xTe magneto-optical waveguide grown on GaAs substrate

Abstract

The isolation effect was studied in a ${\mathrm{Cd}}_{1-x}{\mathrm{Mn}}_x\mathrm{Te}$ magneto-optical waveguide grown on a GaAs substrate. By use of prism coupling, an isolation ratio of 20 dB was achieved at $\mathrm{\lambda }=740 \mathrm{nm}$ under a magnetic field of 5 kG. The high isolation ratio obtained in the magneto-optical waveguide grown on the semiconductor substrate shows the feasibility of monolithical integration of an optical isolator with semiconductor optoelectronic devices.

© 2005 Optical Society of America

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