Title :
Polarization mode filter in GaAs-AlAs superlattice fabricated by SiO/sub 2/ cap disordering
Author :
Suzuki, Yasuhiro ; Iwamura, Hidetoshi ; Mikami, Osamu
Author_Institution :
NTT Opto-Electron. Lab., Kanagawa, Japan
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 :
III-V semiconductors; aluminium compounds; gallium arsenide; integrated optics; optical filters; optical polarisers; optical waveguides; semiconductor superlattices; 1.15 micron; GaAs-AlAs superlattice; III-V semiconductors; SiO/sub 2/ cap disordering; bending regions; extinction ratio; mode-selective channel waveguides; near-field patterns; polarization mode filter; transverse electric mode filters; transverse magnetic mode filters; wavelength; Annealing; Optical devices; Optical filters; Optical waveguides; Polarization; Refractive index; Semiconductor waveguides; Superlattices; Wavelength measurement;
Journal_Title :
Photonics Technology Letters, IEEE
