Hybrid waveguide device in powerful laser systems
US8554037B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 30, 2010 |
| Grant date | Oct 8, 2013 |
| Priority date | — |
| Expiry date | May 10, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/365
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A hybrid waveguide device includes a hollow core fiber having a core formed by a combination of solid material and gases. The hybrid nature of the core allows the hybrid device to transport a high energy high power laser beam having an ultra-short pulse width without damage to the hybrid device due to a higher tolerance of irradiance than single-matter cores. A waveguide device having a core with gases in addition to solid matter is characterized by a lower nonlinear refractive index coefficient (n2), lower numerical aperture, larger delivering laser beam size, and higher ionization potential of the gases. As a result, the hybrid waveguide fiber can transport ultra-short laser pulses having ablative energy levels and power levels, for example from a laser generating subassembly to a laser material-modification subassembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.