Method of fabricating a dielectric multilayer filter

Details Method of fabricating a dielectric multilayer filter Method of fabricating a dielectric multilayer filter

1993-04-30

1994-07-26

Lowe, James

Plastic and nonmetallic article shaping or treating: processes

Optical article shaping or treating

Composite or multiple layer

264 21, 264 27, 264 81, 264311, 264164, B29D 1100

Patent

active

053325354

ABSTRACT:
A dielectric multilayer filter applicable to optical communication systems is disclosed, as is a fabrication method therefor, and an optical element incorporating the same. The disclosed dielectric multilayer filter includes a fluorinated polyimide base layer with a dielectric multilayer formed thereover. According to the disclosed fabrication method, a fluorinated polyimide layer is formed by applying liquid fluorinated polyimide material over a smooth surface to a predetermined thickness followed by drying and hardening, after which a dielectric multilayer is formed over the fluorinated polyimide layer by an ion assist vapor deposition method, and then stripping the fluorinated polyimide layer away from the underlying smooth surface. The disclosed dielectric multilayer filter can be easily and economically produced at a suitably small thickness with no need for grinding, exhibits highly uniform physical and optical properties, and is exceedingly durable and resistant to curling and warping.

REFERENCES:
patent: 4212457 (1980-07-01), Guenther
patent: 4674866 (1987-06-01), Tanaka
patent: 4714241 (1987-12-01), Randall
patent: 4790615 (1988-12-01), Seki et al.
patent: 4933132 (1990-06-01), Vora
patent: 4952666 (1990-08-01), Landis
patent: 5108201 (1992-04-01), Matsuura et al.
Applied Optics, vol. 24, No. 4, Feb. 15, 1985, J. R. McNeil et al., "Properties of TiO.sub.2 and SiO.sub.2 thin films deposited using ion assisted deposition", pp. 486-489.
Journal of Light Wave Technology, vol. 7, No. 11, Nov. 1989, H. Yanagawa et al., "Filter-Embedded Design and its Applications to Passive Components", pp. 1646-1653.
"Design and Evaluation of Automatic Optical Fiber Operation Support System," H. Takasugi et al., Proceedings of 39th International Wire and Cable Symposium, 1990, pp. 622-629.
"Research on thin film anticounterfeiting coatings at the National Research Council of Canada," J. A. Dobrowolski et al., Applied Optics, vol. 28, No. 14, Jul. 15, 1989, pp. 2702-2717.

Affiliated with

Also associated with

Rating

Method of fabricating a dielectric multilayer filter does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of fabricating a dielectric multilayer filter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of fabricating a dielectric multilayer filter will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1051583