Plastic molded optical switch designed by means of optical power evaluation computer program

Hideyuki Tanaka; Yasukazu Sano; Hideo Kume; Mitsuo Nishio

doi:10.1117/12.141204

19 February 1993 Plastic molded optical switch designed by means of optical power evaluation computer program

Hideyuki Tanaka, Yasukazu Sano, Hideo Kume, Mitsuo Nishio

Proceedings Volume 1792, Components for Fiber Optic Applications VII; (1993) https://doi.org/10.1117/12.141204
Event: Fibers '92, 1992, Boston, MA, United States

Abstract

This paper reports a novel reflection type plastic molded optical switch which comprises two spherical prisms for totally reflecting incident light and a shutter positioned between the prisms for controlling the transmission loss of the light. The switch shows insertion loss of 9.7 dB when the switch is used in conjunction with optical fibers with 1 mm core diameter and extinction ratio of 35.1 dB. The insertion loss is lower by 8 dB than the conventional reflection type switch that employs flat reflection type prisms. In designing the switch, we evaluated the switch performance by means of a newly developed ray tracing computer program that considers optical power for each ray trace, that has not been done by the conventional evaluation technique. Discrepancy between the experimental and calculated insertion losses is +/- 1 dB. This small discrepancy confirms usefulness of our computer program.

Citation Download Citation

Hideyuki Tanaka, Yasukazu Sano, Hideo Kume, and Mitsuo Nishio "Plastic molded optical switch designed by means of optical power evaluation computer program", Proc. SPIE 1792, Components for Fiber Optic Applications VII, (19 February 1993); https://doi.org/10.1117/12.141204

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KEYWORDS

Optical switching

Ray tracing

Switches

Camera shutters

Optical fibers

Prisms

Optical design

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