Method and device for ultrafast group-velocity control via optical parametric amplification in chirped quasi-phase-matching structure
US10599008B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 21, 2019 |
| Grant date | Mar 24, 2020 |
| Priority date | — |
| Expiry date | Mar 21, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2202/20
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Ultrafast group-velocity control method and device thereof comprising a signal path successively comprising a seed laser source, a pulse stretcher, and a first pulse compressor; a pump path comprising a pump laser source; an amplifier comprising a nonlinear crystal with chirped poled-period; and an idler path successively comprising a spectral filter and a second pulse compressor after amplifier. Both chirped signal pulse from the pulse stretcher and pump pulse from the pump source incident into the amplifier, where energy continuously transfers from the pump pulse to the chirped signal pulse and a newly generated idler pulse. The amplified chirped signal pulse is directly compressed by first pulse compressor and the generated idler pulse is firstly filtered by the spectral filter and then compressed by the second pulse compressor. After amplification and compression, both signal and idler are delayed, and group delay is adjusted by the pump intensity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.