Integration of magnetooptical waveguides onto a III-V semiconductor surface
Document Type
Article
Publication Date
2-1-2002
Abstract
Optical waveguides fabricated on a yttrium iron garnet (YIG) substrate are integrated onto a semiconductor surface by using ridge waveguides patterned onto a prefabricated recess in the YIG surface. The recess separates the waveguides from the semiconductor substrate with an air-gap. This structure makes it possible to avoid coupling light within the YIG waveguides into the semiconductor substrate which has a higher refractive index. The excess optical loss due to the coupling can be as low as ≤0.1 dB/cm with a 1-μm-wide air-gap. The calculated coupling loss is confirmed by comparing the guided TE and TM modes.
Publication Title
IEEE Photonics Technology Letters
Recommended Citation
Izuhara, T.,
Fujita, J.,
Levy, M.,
&
Osgood, R.
(2002).
Integration of magnetooptical waveguides onto a III-V semiconductor surface.
IEEE Photonics Technology Letters,
14(2), 167-169.
http://doi.org/10.1109/68.980494
Retrieved from: https://digitalcommons.mtu.edu/michigantech-p/10250