Noncollinear achromatic phase matching based optical parametric chirped-pulse amplifier with insensitivity to temperature and wavelength
US9711931B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 24, 2017 |
| Grant date | Jul 18, 2017 |
| Priority date | — |
| Expiry date | Feb 24, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/0057
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A simultaneous temperature- and wavelength-insensitive parametric amplifier comprising a pump laser, a signal laser, and a crystal amplifier. The pump laser system on a first optical pathway includes a Nd:YVO4 laser oscillator-regenerative amplifier and a Nd:YAG boost amplifier. The pump laser beam is generated from the pump laser system, passes through the first image-relay system, and is frequency-doubled in the frequency-doubling crystal. The signal laser system on a second optical pathway comprises a Ti:sapphire regenerative amplifier and generates the signal laser beam, which passes through the pulse stretcher and is temporally chirped and imposed with an angular dispersion by the first grating. The chirped signal beam and pump laser beam are intersected with a noncollinear angle of >5° in the crystal amplifier for temperature-insensitive phase-matching (PM). By optimizing grating constant of the first grating, the chirped signal is imposed with appropriate amount of angular dispersion for wavelength-insensitive PM.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.