Polarization mode filter in GaAs-AlAs superlattice fabricated by SiO/sub 2/ cap disordering
- 1 November 1990
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Photonics Technology Letters
- Vol. 2 (11) , 818-819
- https://doi.org/10.1109/68.63232
Abstract
Novel TE-mode and TM-mode filters in GaAs-AlAs superlattice are proposed and fabricated by SiO/sub 2/ cap disordering. The structure consists of mode-selective channel waveguides with bending regions. Functions of mode filters are confirmed by observing near-field patterns, yielding an extinction ratio of 14 dB at 1.15 mu m wavelength.Keywords
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