All fiber passively Q-switched laser
US9031098B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 18, 2012 |
| Grant date | May 12, 2015 |
| Priority date | — |
| Expiry date | Jan 9, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/1618
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Embodiments relate to an all fiber passively Q-switched laser. The laser includes a large core doped gain fiber having a first end. The large core doped gain fiber has a first core diameter. The laser includes a doped single mode fiber (saturable absorber) having a second core diameter that is smaller than the first core diameter. The laser includes a mode transformer positioned between a second end of the large core doped gain fiber and a first end of the single mode fiber. The mode transformer has a core diameter that transitions from the first core diameter to the second core diameter and filters out light modes not supported by the doped single mode fiber. The laser includes a laser cavity formed between a first reflector positioned adjacent the large core doped gain fiber and a second reflector positioned adjacent the doped single mode fiber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.