Sampling of optical signals
US7705993B2 · kind B2 · utility
1Cited by
1References
26Claims
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Key dates
| Filing date | Jan 4, 2008 |
| Grant date | Apr 27, 2010 |
| Priority date | — |
| Expiry date | Mar 12, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R13/347
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and device for sampling ultra-fast optical signals by generating a sampling signal comprising a train of short pulses and coupling the sampling signal together with an optical data signal to be sampled into a highly non-linear optical fiber. Four-wave mixing (FWM) occurs between the two signals resulting in a secondary signal output from the fiber consisting of pulsed components having energy proportional to the instantaneous power of points along the data signal. An analysis of this secondary signal can be carried out to create a normal trace or eye-diagram of the data signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.