Method and system for encoding optical communication...

Details Method and system for encoding optical communication... Method and system for encoding optical communication...

2005-07-26

2005-07-26

Negash, Kinfe-Michael (Department: 2633)

Optical communications

Diagnostic testing

Determination of communication parameter

C398S009000, C398S015000, C398S017000, C398S031000, C398S141000, C398S182000, C356S073100, C250S551000

Reexamination Certificate

active

06922531

ABSTRACT:
A system and method for identifying one or more characteristics of an optical signal, in which a transmitter is operable to transmit an optical signal and a receiving unit is operable to receive the optical signal. The transmitter has a laser for generating the optical signal and an encoding unit adapted to control the laser to activate and deactivate the optical signal during a laser shutdown state based on a predetermined code. The receiving unit has an optical receiver optically coupled to the transmitter by a light transmission medium and is operable to receive the optical signal from the transmitter. The receiving unit also has a decoder measuring at least one of an active time of the optical signal and the inactive time between active times of the optical signal. The decoder determines at least one of the one or more characteristics of the optical system based on at least one of the active time or the inactive time.

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International Telecommunication Union, ITU-T Recommendation G.664,Optical Safety Procedures and Requirements for Optical Transport Systems, Jun. 1999.

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