All-optical, continuously tunable, pulse delay generator using wavelength conversion and dispersion
US7538935B2 · kind B2 · utility
6Cited by
4References
16Claims
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Key dates
| Filing date | Mar 17, 2006 |
| Grant date | May 26, 2009 |
| Priority date | — |
| Expiry date | Jul 30, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2201/20
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A technique for generating variable pulse delays uses one or more nonlinear-optical processes such as cross-phase modulation, cross-gain modulation, self-phase modulation, four-wave mixing or parametric mixing, combined with group-velocity dispersion. The delay is controllable by changing the wavelength and/or power of a control laser. The delay is generated by introducing a controllable wavelength shift to a pulse of light, propagating the pulse through a material or an optical component that generates a wavelength dependent time delay, and wavelength shifting again to return the pulse to its original wavelength.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.