Apparatus and method for monitoring in-band OSNR

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United States of America Patent

PATENT NO 9742491
APP PUB NO 20150349880A1
SERIAL NO

14726655

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Abstract

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An apparatus and a method for monitoring in-band OSNR (Optical Signal-to-Noise Ratio) which monitors the in-band OSNR by using two parallel Mach-Zehnder-interferometers with different optical time delays are disclosed. The apparatus and method can be resistant to chromatic dispersion, polarization mode dispersion and polarized noise, can measure the coherence characteristics of the signal without removing the noise, and can be manufactured into a semiconductor integrated device and be applied in the future high-speed optical network.

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Patent Owner(s)

Patent OwnerAddress
BEIJING UNIVERSITY OF POSTS AND TELECOMMUNICATIONSBEIJING

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Guo, Hongxiang Beijing, CN 6 13
Hong, Xiaobin Beijing, CN 4 5
Li, Yan Beijing, CN 1447 20982
Lin, Jintong Beijing, CN 2 5
Qiu, Jifang Beijing, CN 1 1
Wu, Jian Beijing, CN 427 2508
Yuan, Bo Beijing, CN 89 1062

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