16 W output power by high-efficient spectral beam combining of DBR-tapered diode lasers
Publication: Research - peer-review › Journal article – Annual report year: 2011
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16 W output power by high-efficient spectral beam combining of DBR-tapered diode lasers. / Müller, André; Vijayakumar, Deepak; Jensen, Ole Bjarlin; Hasler, Karl-Heinz; Sumpf, Bernd; Erbert, Götz; Andersen, Peter E.; Petersen, Paul Michael.
In: Optics Express, Vol. 19, No. 2, 2011, p. 1228-1235.Publication: Research - peer-review › Journal article – Annual report year: 2011
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TY - JOUR
T1 - 16 W output power by high-efficient spectral beam combining of DBR-tapered diode lasers
A1 - Müller,André
A1 - Vijayakumar,Deepak
A1 - Jensen,Ole Bjarlin
A1 - Hasler,Karl-Heinz
A1 - Sumpf,Bernd
A1 - Erbert,Götz
A1 - Andersen,Peter E.
A1 - Petersen,Paul Michael
AU - Müller,André
AU - Vijayakumar,Deepak
AU - Jensen,Ole Bjarlin
AU - Hasler,Karl-Heinz
AU - Sumpf,Bernd
AU - Erbert,Götz
AU - Andersen,Peter E.
AU - Petersen,Paul Michael
PB - Optical Society of America
PY - 2011
Y1 - 2011
N2 - Up to 16 W output power has been obtained using spectral beam combining of two 1063 nm DBR-tapered diode lasers. Using a reflecting volume Bragg grating, a combining efficiency as high as 93.7% is achieved, resulting in a single beam with high spatial coherence. The result represents the highest output power achieved by spectral beam combining of two single element tapered diode lasers. Since spectral beam combining does not affect beam propagation parameters, M2-values of 1.8 (fast axis) and 3.3 (slow axis) match the M2- values of the laser with lowest spatial coherence. The principle of spectral beam combining used in our experiments can be expanded to combine more than two tapered diode lasers and hence it is expected that the output power may be increased even further in the future.
AB - Up to 16 W output power has been obtained using spectral beam combining of two 1063 nm DBR-tapered diode lasers. Using a reflecting volume Bragg grating, a combining efficiency as high as 93.7% is achieved, resulting in a single beam with high spatial coherence. The result represents the highest output power achieved by spectral beam combining of two single element tapered diode lasers. Since spectral beam combining does not affect beam propagation parameters, M2-values of 1.8 (fast axis) and 3.3 (slow axis) match the M2- values of the laser with lowest spatial coherence. The principle of spectral beam combining used in our experiments can be expanded to combine more than two tapered diode lasers and hence it is expected that the output power may be increased even further in the future.
KW - Laser beam combining
KW - Diode lasers
UR - http://www.opticsinfobase.org/oe/abstract.cfm?uri=oe-19-2-1228
U2 - 10.1364/OE.19.001228
DO - 10.1364/OE.19.001228
JO - Optics Express
JF - Optics Express
SN - 1094-4087
IS - 2
VL - 19
SP - 1228
EP - 1235
ER -