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Proceedings Paper

Plastic integrated optical components made by molding, liquid jet delineation, and photoprocessing
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Paper Abstract

We present the results on fabrication of plastic integrated optical elements using molding, liquid jet delineation, and UV irradiation. Coupling gratings with a period of 620 mm-1 and a diffraction efficiency of 3.3 percent were molded in a preheated poly(methyl methacrylate) planar waveguide using master saw shaped grating. An experimental device is also described which uses computer controlled micro syringe to dispense polymer solution onto a moving substrate. This device consumes thousand times less material to produce integrated optical circuits than equivalent spin- casting equipment.We have made various structures such as Y- branches and Mach-Zehnder interferometers. All the structures demonstrated good performance. The same device was also equipped with a microscope-type UV illuminator for noncontact delineation of optical structures in polyimide films. The operation is based on the refractive index increase due to photo-oxidative decomposition of the material. The index difference 0.02 between exposed and unexposed regions is sufficient to define light guiding channels in polyimide without using liquid developing. UV radiation was also used to make graded-index polyimide waveguides. Their refractive index profile was successfully reconstructed by a specially developed calculation technique. All the techniques combined together give us the cost efficient tool for the fabrication of plastic integrated optics.

Paper Details

Date Published: 22 September 1997
PDF: 12 pages
Proc. SPIE 3135, Precision Plastic Optics for Optical Storage, Displays, Imaging, and Communications, (22 September 1997); doi: 10.1117/12.279146
Show Author Affiliations
Sergey S. Sarkisov, Alabama A&M Univ. (United States)
Zedric Antone Teague, Eastman Kodak Co. (United States)
Andre Taylor, Alabama A&M Univ. (United States)
Abdalla M. Darwish, Alabama A&M Univ. (United States)
Putcha Venkateswarlu, Alabama A&M Univ. (United States)
Hossin Ahmed Abdeldayem, Universities' Space Research Association/NASA Marshall Space Flight Ctr. (United States)
Donald O. Frazier, NASA Marshall Space Flight Ctr. (United States)
Grigory Adamovsky, NASA Lewis Research Ctr. (United States)
Jack L. McCain, McCain-Keller Inc. (United States)
George A. Keller, McCain-Keller Inc. (United States)

Published in SPIE Proceedings Vol. 3135:
Precision Plastic Optics for Optical Storage, Displays, Imaging, and Communications
Werner F. Frank, Editor(s)

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