Optical receiving device and optical receiving method

Details Optical receiving device and optical receiving method Optical receiving device and optical receiving method

2008-07-15

2008-07-15

Chan, Jason (Department: 2613)

Optical communications

Receiver

C375S351000

Reexamination Certificate

active

07400836

ABSTRACT:
An optical receiving device capable of outputting a control signal and a data signal received as an optical signal, even if a received optical power of an optical signal inputted via an optical fiber fluctuates. An optical-to-electrical conversion section converts the optical signal inputted via the optical fiber to an electrical signal. A received optical power detection section detects a received optical power of the optical signal. A detection level setting section outputs a first detection level value or a second detection level value as a detection level. A comparison section compares the received optical power with the detection level. An output/stop switching section outputs an electrical signal as an output signal when the received optical power is greater than the detection level, and stops outputting the signal when the received optical power Pt is smaller than the detection level Lt.

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patent: 03/013030 (2003-02-01), None

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