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Proceedings Paper

Graded-index single-mode polymer waveguide hologram on GaAs substrate for near-infrared twelve-channel wavelength division demultiplexer
Author(s): Ray T. Chen
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Paper Abstract

A twelve-channel single-mode wavelength division demultiplexer operating at 830, 840, 850, 860, 870, 880, 890, 900, 910, 920, 930 and 940 nm with diffraction angle varying from 10 degree(s) to 65 degree(s) and using a graded index (GRIN) polymer waveguide is reported for the first time on a semi-insulating GaAs substrate. Diffraction efficiency up to 55% was measured. The wavelength spreading of the Ti:Al2O3 laser (approximately 4 nm, 3 dB bandwidth) causes an average crosstalk figure of -20.5 dB. The beam width of the diffracted signal as a function of the input beam width, the grating interaction length, and the diffraction angle are considered.

Paper Details

Date Published: 6 April 1993
PDF: 5 pages
Proc. SPIE 1794, Integrated Optical Circuits II, (6 April 1993); doi: 10.1117/12.141907
Show Author Affiliations
Ray T. Chen, Univ. of Texas/Austin (United States)

Published in SPIE Proceedings Vol. 1794:
Integrated Optical Circuits II
Ka-Kha Wong, Editor(s)

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