Accession Number : ADD011124

Title :   Optical Power Source Control System.

Descriptive Note : Patent,


Personal Author(s) : Husbands,C R

Report Date : 15 May 1984

Pagination or Media Count : 5

Abstract : An optical power source control system having a four port optical coupler, an optical receiver and associated comparator circuits operably connected to the optical transmission line connecting the source to an output connector. When the output connector is mated with another connector, the receiver senses the optical energy reflected from the glass/air and air/glass interfaces of the connectors and provides an appropriate signal. This signal is sufficiently high when compared to a threshold voltage level to permit the power source to operate. When the output connector is in the unmated condition the reflected optical power from the air/glass interface is no longer present and therefore the signal from the receiver falls below the threshold voltage level. With this reduced signal level, power flow to the optical source is removed or reduced thereby controlling the operation of the optical power source. (Author)

Descriptors :   *Patents, *Power supplies, *Optical equipment, *Control systems, Optical properties, Receivers, Threshold effects, Connectors, Light pulses, Couplers, Connectors, Interfaces, Glass, Ports(Openings), Transmission lines, Reduction, Energy, Reflection, Inventions, Air, High power, Voltage, Signals, Light transmission, Output, Circuits

Subject Categories : Electric Power Production and Distribution

Distribution Statement : APPROVED FOR PUBLIC RELEASE