Low-loss signal coupler for optical communications and integrate

Details Low-loss signal coupler for optical communications and integrate Low-loss signal coupler for optical communications and integrate

1976-10-04

1978-03-28

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

350 9616, G02B 516

Patent

active

040816729

ABSTRACT:
A method and means for coupling information or signal power into or out of iber optics for integrated optical waveguides. The coupling consists of selectively doping with impurity ions such as rare earth or transition metal ions which are excited to fluorescence within the waveguide by the frequency of the transmitted carrier wave. The fluorescent emission is then detected at right angles to the fiber using conventional photodetectors and amplifiers.

REFERENCES:
patent: 2358867 (1944-09-01), Madan
patent: 2695964 (1954-11-01), Schepker
patent: 2798147 (1957-07-01), Orsatti
patent: 3135866 (1964-06-01), McNaney
patent: 3526880 (1970-09-01), Filippazzi

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