Geometric isolator providing isolation between resonantly pumped cascaded laser
US9634461B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 28, 2015 |
| Grant date | Apr 25, 2017 |
| Priority date | — |
| Expiry date | Jul 28, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/1616
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A fiber optic geometric isolator is disclosed which is inserted between two cascaded, high-power fiber optic lasers and, in conjunction with a cladding mode stripper, provides improved optical Isolation between the two fiber optic lasers while maintaining highly-efficient laser operation. The isolator achieves this without the need for electromagnetic isolation between the two cascaded lasers. The isolator is an optical fiber designed to operate as a monolithic, continuous waveguide to enable a specific mode-coupling condition that converts the light of a first laser to that of a second, cascaded laser, with the light moving from the core of the first laser to both the core and the cladding of the second laser.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.