The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 30, 2015
Filed:
May. 21, 2012
Dezhong Yu, Shenzhen, CN;
Fanming Meng, Shenzhen, CN;
Junbo Xie, Shenzhen, CN;
Yu Xu, Shenzhen, CN;
Jiahong Zeng, Shenzhen, CN;
Binlin Deng, Shenzhen, CN;
Dezhong Yu, Shenzhen, CN;
Fanming Meng, Shenzhen, CN;
Junbo Xie, Shenzhen, CN;
Yu Xu, Shenzhen, CN;
Jiahong Zeng, Shenzhen, CN;
Binlin Deng, Shenzhen, CN;
Huawei Technologies Co., Ltd., Shenzhen, CN;
Abstract
A dynamic dispersion detecting method and apparatus are disclosed. The apparatus includes a tunable dispersion compensation module (), a demodulator (), a receiver (), a partial band radio frequency power detecting unit (), and an electrical signal ratio calculating unit (). The method includes: demodulating a phase of a received optical signal; converting the demodulated optical signal into an electrical signal; sampling radio frequency power of the electrical signal to obtain an radio frequency signal; obtaining an electrical signal ratio of the radio frequency signal; and comparing a value of a currently detected electrical signal ratio with the values of the previously detected electrical signal ratios, tuning a dispersion compensation value according to a comparison result to find a peak electrical signal ratio, and obtaining a residual dispersion value of a system according to the peak electrical signal ratio.