Hundred-watt diode laser source by spectral beam combining
LASER PHYSICS LETTERS(2014)
Abstract
A diode laser source with a continuous wavelength (CW) power of 106 W and the beam quality M-2 of 14.6 is demonstrated by spectrum beam combining (SBC) of three 800 nm LDAs. With the help of relay optics, a wavelength interval of 0.21 nm and a whole spectrum span of 13.9 nm are achieved, which is almost 10 times narrower than those of the structure without the relay optics. This presents a method to obtain a high power and high beam quality SBC laser source with a narrow spectrum.
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Key words
diode laser,spectral beam combining,transmission grating,relay optics
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