Optical time-domain reflectometry signal detection method and apparatus
US9194763B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 28, 2013 |
| Grant date | Nov 24, 2015 |
| Priority date | — |
| Expiry date | Nov 4, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B2210/074
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention provides an optical time-domain reflectometry signal detection method, including the following steps: modulating, under the control of a correlation code pattern sequence respectively, n detection optical signals transmitted by detection light sources of different wavelengths into n pulse optical signals, where n is a natural number greater than or equal to 2; combining the n pulse optical signals and outputting a detection optical signal to an optical fiber under test; receiving a backscattered optical signal from the optical fiber under test and dividing the backscattered optical signal into n optical signals according to wavelengths; and performing correlation processing on the n optical signals according to the correlation code pattern sequence and outputting a correlation optical time-domain reflectometry signal. The present invention further provides an optical time-domain reflectometry signal detection apparatus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.