Helical optical pulse stretcher
US7321605B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 24, 2004 |
| Grant date | Jan 22, 2008 |
| Priority date | — |
| Expiry date | Apr 11, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S372/70
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A pulse stretcher includes a single pass pulse stretcher. An optical system is arranged around the single pass pulse stretcher. A beam enters the single pass stretcher and is reflected in a helical path using the optical system for multiple passes through the single pass pulse stretcher. The single pass pulse stretcher can include two 90° prisms, with a beam splitter located therebetween. The optical system can include first and second prisms. At least one of the first and second prisms can be a roof prism. The first and second prisms can have at least one surface oriented so as to direct the beam into the helical path. The optical system can have at least one mirror, or a plurality of mirrors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.