Multimode fiber laser gratings
US6751241B2 · kind B2 · utility
23Cited by
18References
46Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 27, 2001 |
| Grant date | Jun 15, 2004 |
| Priority date | — |
| Expiry date | Jun 25, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/2308
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optically active waveguide laser (30) includes a multimode portion (126) for carrying more than one spatial mode at a predetermined wavelength chosen from a bandwidth including a pump wavelength (64) and the lasing wavelength (66). The multimode portion (126) has a first refractive index. A cladding portion (386) is proximate the multimode portion (126). A multimode grating (60, 56, or 62) is written on at least one section (26) of the multimode portion for reflecting the predetermined wavelength.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.