The search functionality is under construction.
The search functionality is under construction.

TE/TM Mode Selective Channel Waveguides in GaAs/AlAs Superlattice Fabricated by SiO2 Cap Disordering

Yasuhiro SUZUKI, Hidetoshi IWAMURA, Osamu MIKAMI

  • Full Text Views

    0

  • Cite this

Summary :

Novel structure TE and TM mode selective optical channel waveguides are proposed and fabricated in GaAs/AlAs superlattices (SLs) using impurity-free disordering induced by SiO2 cap annealing. The disordered SL regions are found to be useful as low-loss waveguides even at a wavelength close to the absorption-edge of the as-grown SL. By observing the near-field petterns, it is confirmed that these channel waveguides could selectively confine TE or TM polarized light. These waveguides are applied to TE and TM mode filters using a bending waveguide to disperse unwanted signals. The extinction ratio is 14 dB for both types of filters. This value can be improved by optimizing the device structures.

Publication
IEICE TRANSACTIONS on transactions Vol.E73-E No.1 pp.83-87
Publication Date
1990/01/25
Publicized
Online ISSN
DOI
Type of Manuscript
Special Section PAPER (Special Issue on International Conference on Integrated Optics and Optical Fiber Communication)
Category
Optical Semiconductor Devices and OEICs

Authors

Keyword