Optical transmitting device

Details Optical transmitting device Optical transmitting device

1996-04-23

1999-05-18

Bacares, Rafael

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359167, 359110, H04B10/04

Patent

active

059055880

ABSTRACT:
There is provided an optical transmitting device with which signal light can be blocked only in the optical path having a displaced or removed optical connector without affecting the remaining optical paths. An optical transmitting device comprises a light source 12 for producing signal light with a high-power level, an optical distributor 14 for distributing the signal light from the light source 12 to a plurality of optical paths and a plurality of optical output ports 18 connected to said optical distributor 14, wherein each of the plurality of optical paths is provided between the optical distributor 14 and the related optical output port 18 with an light blocking unit 26, an optical coupler 20 connected to said light blocking unit 26 for branching an optical path from the incoming optical path for reflected return light, an light/electricity converter 22 for converting the reflected return light into an electric signal and a control circuit 24 for driving the light blocking unit 26 according to the electric signal from said light/electricity converter 22.

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patent: 5355250 (1994-10-01), Grasso et al.
patent: 5428471 (1995-06-01), McDermott
patent: 5485296 (1996-01-01), Healey et al.
patent: 5487120 (1996-01-01), Choy et al.
patent: 5642450 (1997-06-01), Oda

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