Title:
SYSTEM AND METHOD FOR DETECTING IMPERFECT CONNECTIONS IN OPTICAL SYSTEMS
Document Type and Number:
WIPO Patent Application WO2001051970
Kind Code:
A3
Abstract:
A system prevents damage to at least one component of a laser apparatus that includes a laser that emits a light signal of increasing power during power up and at least one connector that receives the light signal from the laser and reflects at least a portion of the light signal when an imperfect connection exists. The system includes a detector and a monitoring circuit. The detector detect the reflected light signal from the connector. The monitoring circuit receives the reflected light signal, determines an amount of power in the reflected light signal, calculates a ratio of the power of the light signal emitted by the laser to the power in the reflected light signal, compares the ratio to a predetermined threshold to determine whether the imperfect connection exists, and shuts down the laser when the imperfect connection exists.
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Inventors:
STUMMER ALAN D
Application Number:
PCT/US2001/001207
Publication Date:
December 20, 2001
Filing Date:
January 12, 2001
Export Citation:
Assignee:
CIENA CORP (US)
International Classes:
H04B10/08; (IPC1-7): H04B10/08
Foreign References:
| US5528409A | 1996-06-18 |
Other References:
PATENT ABSTRACTS OF JAPAN vol. 1997, no. 03 31 March 1997 (1997-03-31)
PATENT ABSTRACTS OF JAPAN vol. 018, no. 148 (E - 1522) 11 March 1994 (1994-03-11)
PATENT ABSTRACTS OF JAPAN vol. 018, no. 148 (E - 1522) 11 March 1994 (1994-03-11)
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