Optical communication system and optical communication abnormality-recovery method

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United States of America Patent

PATENT NO 9780867
APP PUB NO 20160269105A1
SERIAL NO

15029489

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Abstract

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In an optical communication abnormality-recovery system and method, when an abnormality occurs in transmission and reception of one wavelength of an optical line terminal of a PON system, an optical network unit that is performing communication at a certain wavelength switches the wavelength for performing the communication to another backup wavelength that is instructed in advance. The optical line terminal also performs switching so that the communication is performed using the same backup wavelength as in the optical network unit.

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Patent Owner(s)

  • NIPPON TELEGRAPH AND TELEPHONE CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kaneko, Shin Yokosuka, JP 59 121
Kimura, Shunji Atsugi, JP 17 124
Yoshida, Tomoaki Yokosuka, JP 73 441

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