We have proposed and fabricated a TE mode semiconductor-waveguide-type optical isolator based on the nonreciprocal loss shift at a wavelength λ= 1560 nm. Furthermore, we demonstrate, for the first time, a TE mode nonreciprocal loss shift of 9.3 dB/mm under a magnetic field of +/-1 kG in the facricated InGaAsP active waveguide with Fe on an InP substrate. This result opens a way to the monolithic integration of semiconductor waveguide-type optical isolators with edge emitting semiconductor lasers.
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Shimizu et al. (2004) studied this question.