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Science 14 November 1986:
Vol. 234. no. 4778, pp. 825 - 829
DOI: 10.1126/science.234.4778.825
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Articles

Optical Guided-Wave Devices

R. C. ALFERNESS 1

1 Crawford Hill Laboratory of AT&T Bell Laboratories, Holmdel, NJ 07733.

Optical fiber is rapidly becoming the transmission medium of choice for new telecommunication systems. For a true lightwave network to evolve, however, optical control devices such as optical switches and multiplexer-demultiplexers will be essential. Optical guided-wave devices built with photolithographic fabrication techniques and electro-optic substrates are compact, low drive power devices that provide these functions. Research is particularly advanced on integrated-optic devices based on waveguides formed by titanium diffused into lithium niobate. Switch arrays, tunable filters, and high-speed modulators have been demonstrated and used in research systems experiments.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Optical Materials.
A. M. GLASS (1987)
Science 235, 1003-1009
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