Pulsed fiber laser wavelength convertor
US9341920B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 6, 2015 |
| Grant date | May 17, 2016 |
| Priority date | — |
| Expiry date | Feb 6, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/0092
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A wavelength convertor includes a beam splitter which splits a pulsed laser beam at wavelength λp into a first higher power pulse portion and a second low power pulse portion. A fiber super continuum (SC) generator is coupled to receive the second pulse portion which converts the second pulse portion into a SC pulse having a bandwidth of >100 nm including a narrow spectral portion at wavelength λs. An optical parametric amplifier (OPA) having a periodically poled material is included with domains arranged to provided quasi-phase matching for amplification at λs and pumping at λp. The arrival of the SC pulse portion at λs and the first pulse portion at the OPA is synchronized to overlap in time. The OPA is seeded by the SC pulse portion at λs and pumped by the first pulse portion to provide an amplified OPA seed at λs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.