Active phase and polarization locking of a 1.4 kW fiber amplifier.
作者： Gregory D. Goodno , Stuart J. McNaught , Joshua E. Rothenberg , Timothy S. McComb , Peter A. Thielen
DOI: 10.1364/OL.35.001542
关键词: Materials science 、 Dispersion-shifted fiber 、 Optical fiber 、 Optics 、 Graded-index fiber 、 Polarization-maintaining optical fiber 、 Laser linewidth 、 Double-clad fiber 、 Fiber laser 、 Amplifier
摘要: A three-stage Yb-fiber amplifier emitted 1.43 kW of single-mode power when seeded with a 25 GHz linewidth master oscillator (MO). The amplified output was polarization stabilized and phase locked using active heterodyne control. low-power sample the beam coherently combined to second fiber 90% visibility. measured combining efficiency agreed estimated decoherence effects from nonlinearity, linewidth, phase-locking accuracy. This is highest-power laser that has been any method allows brightness scaling.
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