Waveguide-containing communications and sensing systems

Details Waveguide-containing communications and sensing systems Waveguide-containing communications and sensing systems

1986-02-21

1989-04-11

Lee, John D.

350 9616, 350354, G02B 628, G02F 117

Patent

active

048200166

ABSTRACT:
An optical system, including a waveguide such as an optical fiber, in which optical signals are noninvasively coupled into the waveguide at any point along the length of the waveguide, is disclosed. This is achieved by coupling substantially constant intensity electromagnetic radiation into the waveguide, and then impinging upon the waveguide a directed beam of energy, such as electromagnetic radiation or heat, from an energy source. Alternatively, the waveguide is impinged upon by a combination of an energy beam and a stimulus, e.g., a temperature change. The energy beam, or energy beam and stimulus, induce at least partial absorption of the guided, substantially constant intensity electromagnetic radiation by radiation-absorbing material in the waveguide, to produce the desired optical signal.

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Stolen, R. H., "Nonlinear Properties of Optical Fibers", Optical Fiber Telecommunications, pp. 125-150 ISBN 0-12-49750-7 (1979).

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