Amorphous SiGe:H photodetectors on glass optical waveguides
- 1 July 1990
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Photonics Technology Letters
- Vol. 2 (7) , 499-501
- https://doi.org/10.1109/68.56637
Abstract
Amorphous SiGe:H thin-film photodetectors integrated with ion-exchanged optical waveguides on glass are discussed. The lateral coupling between single-mode waveguide and detector is provided via an intermediate indium-tin-oxide transparent electrode located above the waveguide, followed by a p-i-n photodetector. The optical coupling between waveguide and detector depends strongly on the polarization of the incoming optical mode in the waveguide. Using a random optical bitstream in the waveguide, the detector, which is not yet optimized, responds to signals up to about 20 Mb/s NRZ (nonreturn-to-zero).Keywords
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