Tyson L Lowder

US Patent:

20200287345, Sep 10, 2020

Filed:

Mar 4, 2020

Appl. No.:

16/809314

Inventors:

- Vancouver WA, US
Tyson Lowder - Vancouver WA, US

Assignee:

nLIGHT, Inc. - Vancouver WA

International Classification:

H01S 3/30
H01S 3/067
H01S 3/094

Abstract:

Fiber laser amplification systems and methods are disclosed for use with a chirally coupled core (3C) optical fiber enabling the generation of a high-power output beam having a controlled stable polarization state. Vector modulation instabilities which typically induce undesirable sidebands in 3C fiber optics are greatly reduced even at high peak powers, enabling operation of the up to power levels limited mainly by stimulated Raman scattering (SRS). Polarization extinction ratios (PER) demonstrate long-term stability and minimal degradation due to changes in system temperature. Delays in reaching stable operation during start-up are also greatly reduced.