Controlled wide spectrum compact ultrabrief laser source
US7110111B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 27, 2002 |
| Grant date | Sep 19, 2006 |
| Priority date | — |
| Expiry date | Jul 27, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2202/32
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A wide-spectrum compact ultrabrief laser source includes a rare-earth ion primary laser. The source is pumped by a pump light flux centered on a wavelength λD, the flux being emitted by a solid laser pump source. The primary source emits a primary light flux centered on a wavelength λL of spectral width ΔλL. The latter is injected via an optical injection into a photonic crystal fiber having a length L, a cross-section d, and a set of cavities of diameter φ. A coupling optics collects the light flux at the output of the photonic crystal fiber. The light flux is centered on a wavelength λF and has a spectral width ΔλF. The spectrum is subjected in the photonic crystal fiber to an enlargement which is due for more than 50% to phase self-modulation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.