Broadband or mid-infrared fiber light sources
US7519253B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 15, 2006 |
| Grant date | Apr 14, 2009 |
| Priority date | — |
| Expiry date | Nov 15, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S2301/085
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A broadband light source includes one or more laser diodes that are capable of generating a pump signal having a wavelength shorter than 2.5 microns, a pulse width of at least 100 picoseconds and a pump optical spectral width. The light source also includes one or more optical amplifiers that are coupled to the pump signal and are capable of amplifying the pump signal to a peak power of at least 500 W. The light source further includes a first fiber that is coupled to the one or more optical amplifiers. The first fiber including an anomalous group-velocity dispersion regime and a modulational instability mechanism that operates to modulate the pump signal. In one particular embodiment, the pump signal wavelength resides in the anomalous group-velocity dispersion regime of the first fiber and where different intensities in the pump signal can cause relative motion between different parts of the modulated pump signal produced through modulational instability in the first fiber. The light source also including a nonlinear element that is coupled to the first fiber that is capable of broadening the pump optical spectral width to at least 100 nm through a nonlinear effect in the nonline…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.