Patent · US Active

Fiber laser system and method

US9166357B1 · kind B1 · utility

0Cited by

3References

12Claims

0Family size

Assignee

Q-Peak, Incorporated · US

Inventors

Peter Moulton · Bedford, US
Evgueni Slobodtchikov · Lexington, US
Yelena Isyanova · Sharon, US

Key dates

Filing date	Mar 17, 2015
Grant date	Oct 20, 2015
Priority date	—
Expiry date	Mar 17, 2035

Classification

Technology area (CPC H)Electricity
CPC primaryH01S3/1655
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A fiber laser system includes at least one optical fiber with a core and a cladding and is operative at a first wavelength larger than 2000 nm. The operative first wavelength is preferably chosen to maximize transmission through the atmosphere. At least one optical pumping system includes one or more pumping fiber lasers also doped with thulium for pumping the optical fiber. The pumping system is operative at a second, shorter wavelength close to the first wavelength for low quantum defect pumping. The core of the optical fiber is doped with thulium at a doping concentration greater than one weight % to reduce absorption losses in the core.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.