Wavelength-stabilized fiber-coupled diode laser with 500 W output and 20 mm•mrad beam quality
2012
We report the development of a fiber-coupled diode laser module with high spatial and spectral brightness. Four
arrays of diode laser bars are multiplexed using polarization and narrow-band wavelength combination. The module
achieves 500 W of output power from a 200 μm, 0.2 NA fiber. The output spectrum, composed of contributions
from more than 150 emitters, is narrowed using VBGs and has nearly 100% content within +/- 1.5 nm of 975 nm at
full power.
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