Device and method for realizing spectral polarization-independent measurement based on frequency domain depolarization structure
US10161792B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 22, 2016 |
| Grant date | Dec 25, 2018 |
| Priority date | — |
| Expiry date | Aug 22, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/2746
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention discloses a device and a method for realizing spectral polarization-independent measurement based on a frequency domain depolarization structure. The device comprises a pump light source module, a depolarization module, an SBS effect generation module and a data acquisition and spectrum reconstruction module. The method comprises: emitting laser light having a fixed polarization state from the pump light source module; the laser light from an output end of the pump light source module passing through the depolarization module to become depolarized light; inputting the depolarized light as pump light into the SBS effect generation module to interact with signal light under test input from the outside into the SBS effect generation module; and after amplifying the signal light under test through the SBS effect generation module, performing data acquisition processing through the data acquisition and spectral reconstruction module and finally obtaining a spectrum of a signal under test. The present invention can eliminate the problems that the acquired spectral information is not accurate, the power measurement is not stable and the like when a spectral measureme…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.