Coherent combination of high power fiber amplifiers in a two-dimensional re-imaging waveguide.
Four actively phase-locked beams produced by fiber amplifiers in a master oscillator power amplifier (MOPA) configuration were coherently combined in a glass capillary re-imaging waveguide producing more than 100 W of coherent output with 80% combining efficiency and excellent beam quality. The beam combiner components maintained a temperature below 30 degrees C with no external cooling at >100 W of combined power.
Uberna
Radoslaw
R
Lockheed Martin Coherent Technologies, Sensing and Exploration Systems, Louisville, Colorado 80027, USA. radek.uberna@lmco.com
Bratcher
Andrew
A
Alley
Thomas G
TG
Sanchez
Anthony D
AD
Flores
Angel S
AS
Pulford
Benjamin
B
D004867:Equipment Design; D005336:Fiber Optic Technology / Q000295:instrumentation* / Q000379:methods*; D006358:Hot Temperature; D007834:Lasers; D008027:Light; D055100:Optical Fibers; D011108:Polymers
D011108:Polymers