Chromatic dispersion measurement device and chromatic dispersion measurement method for measuring the dispersion of light pulses
US8699013B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 17, 2013 |
| Grant date | Apr 15, 2014 |
| Priority date | — |
| Expiry date | Apr 17, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01M11/336
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Provided is a chromatic dispersion measurement device including a light branching unit that divides a incident measured light signal into a first measured light signal and a second measured light signal and causes a frequency difference between the first measured light signal and the second measured light signal when the signals are output, an optical phase shifter provided in either one of the first branch path and the second branch path having a polarization maintaining characteristic and periodically changing a phase αi of the measured light signal, an optical combination unit that combines the first measured light signal and the second measured light signal and outputs an interference element of an i-th optical component obtained by interference of the first measured light signal and the second measured light signal when the phase difference is the phase αi, as a combined measured light signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.