Reflective Faraday-based optical devices including an optical mo

Details Reflective Faraday-based optical devices including an optical mo Reflective Faraday-based optical devices including an optical mo

1998-09-22

2000-04-11

Epps, Georgia

Optical: systems and elements

Optical modulator

Light wave directional modulation

359280, 359283, 359301, 359298, G02B 2608, G02F 129

Patent

active

060494123

ABSTRACT:
A reflective Faraday-based optical system is formed to include a partially transmissive optical reflector so that a portion of the optical signal propagating through the system will not be reflected but instead used as an input signal to a monitoring system. The partially transmissive reflector is configured to transmit only a relatively small portion of the optical signal (about 1-10%) so that the performance of the system is not affected. The optical monitoring arrangement may comprise one or more photodetectors, optical fibers, or other optical components for capturing the transmitted signal and converting into an electrical representation that can be evaluated to monitor the power in the optical signal.

REFERENCES:
patent: 5033830 (1991-07-01), Jameson
patent: 5191467 (1993-03-01), Kapany et al.
patent: 5471340 (1995-11-01), Cheng et al.
patent: 5768005 (1998-06-01), Cheng et al.

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