Tunable pulsed narrow bandwidth light source
US6359914B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 4, 1999 |
| Grant date | Mar 19, 2002 |
| Priority date | — |
| Expiry date | Oct 4, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/39
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A tunable pulsed narrow bandwidth light source and a method of operating a light source are provided. The light source includes a pump laser, first and second non-linear optical crystals, a tunable filter, and light pulse directing optics. The method includes the steps of operating the pump laser to generate a pulsed pump beam characterized by a nanosecond pulse duration and arranging the light pulse directing optics so as to (i) split the pulsed pump beam into primary and secondary pump beams; (ii) direct the primary pump beam through an input face of the first non-linear optical crystal such that a primary output beam exits from an output face of the first non-linear optical crystal; (iii) direct the primary output beam through the tunable filter to generate a sculpted seed beam; and direct the sculpted seed beam and the secondary pump beam through an input face of the second non-linear optical crystal such that a secondary output beam characterized by at least one spectral bandwidth on the order of about 0.1 cm−1 and below exits from an output face of the second non-linear optical crystal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.