Long pulse production from short pulses
US5335236A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 3, 1993 |
| Grant date | Aug 2, 1994 |
| Priority date | — |
| Expiry date | Jun 3, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/06754
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method of producing a long output pulse (SA) from a short pump pulse (P), using an elongated amplified fiber (11) having a doped core (12) that provides an amplifying medium for light of one color when driven into an excited state by light of a shorter wavelength and a surrounding cladding 13. A seed beam (S) of the longer wavelength is injected into the core (12) at one end of the fiber (11) and a pump pulse (P) of the shorter wavelength is injected into the cladding (13) at the other end of the fiber (11). The counter-propagating seed beam (S) and pump pulse (P) will produce an amplified output pulse (SA) having a time duration equal to twice the transit time of the pump pulse (P) through the fiber (11) plus the length of the pump pulse (P).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.