Dark fiber laser array coupler
US7274717B1 · kind B1 · utility
11Cited by
24References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 15, 2004 |
| Grant date | Sep 25, 2007 |
| Priority date | — |
| Expiry date | Mar 8, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S2301/20
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A multiple-fiber, stretched, fused and cleaved coupler designed to act as an output window to a fiber laser array or fiber-coupled laser array, in which the stretch, length and/or position of the fibers is chosen facilitate the in-phase oscillation of the lasers in the array. The in-phase oscillation of the lasers is facilitated by making one or more of the fibers interferometrically dark and having a different propagation constant than the other fibers. The other fibers, the interferometrically lit ones, are made to have fairly uniform intensity under the same collimated illumination.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.