Patent · US Active

High power single mode fiber laser system for wavelengths operating in 2 μm range

US9882341B2 · kind B2 · utility

1Cited by

2References

12Claims

0Family size

Assignee

IPG PHOTONICS CORPORATION · US

Inventors

Valentin Gapontsev · Worcester, US
Fedor SHCHERBINA · Burbach, DE
Andrey Mashkin · Burbach, DE

Key dates

Filing date	May 3, 2011
Grant date	Jan 30, 2018
Priority date	—
Expiry date	Aug 2, 2033

Classification

Technology area (CPC H)Electricity
CPC primaryH01S3/094007
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A high power fiber laser system is configured with a pump cascade and a laser cascade. The pump cascade includes a fiber amplifier provided with a MM core which is doped with ions of rare-earth element including either Er or Yb/Er. The MM core of fiber amplifier is configured with a double bottleneck-shaped cross section. The laser cascade has a fiber laser configured with a core which is doped with Tm ions. The pump light generated by the amplifier is coupled into the upstream end of the Tm laser.

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