Optical signal monitoring method and apparatus

Details Optical signal monitoring method and apparatus Optical signal monitoring method and apparatus

2003-12-22

2008-03-04

Phan, Hanh (Department: 2613)

Optical communications

Receiver

Including postcompensation

C398S147000, C398S158000, C398S159000, C398S155000, C398S162000, C398S202000, C398S208000, C398S214000, C398S081000, C398S079000, C398S033000, C398S034000, C398S025000, C398S026000, C398S027000, C398S149000, C385S024000, C385S011000, C385S015000, C385S037000, C385S147000, C375S316000

Reexamination Certificate

active

07340187

ABSTRACT:
In an optical signal monitoring method in wavelength multiplexing and an optical network, an area corresponding to a characteristic pattern of an eye pattern of an optical signal to be monitored, which characterizes a deterioration, is extracted from a database storing a map which associates a quality deterioration factor and deterioration amount of the optical signal with the characteristic pattern of the area of the eye pattern of the optical signal. The extracted pattern is collated with the map stored in the database to monitor the quality deterioration factor and deterioration amount of the optical signal, an occurrence time of a deterioration, duration of a deterioration, a deterioration occurrence cycle, and a deterioration duration cycle. An optical signal monitoring apparatus is also disclosed.

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“Control modulation technique for client independent optical performance monitoring and transport of channel overhead”, TuE2, OFC (2002).
Ikuyo Yoshida, “Introuction to Latest ASP”, Gijutsu Hyoron Sha, Jul. 2001, Sec. 9 in Chapter 6.

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