Title :
High power diode laser with 23W ex 35 μm fibre
Author :
Ulrich Witte;Marcus Hamann;Angelo Di Meo;David Rubel;Martin Traub;Dieter Hoffmann
Author_Institution :
Fraunhofer Institute for Laser Technology, Aachen, Germany
Abstract :
We present a fibre-coupled diode laser module with an optical output power of 23 W ex 35 μm (NA 0.22). The system is based on dense wavelength division multiplexing of two narrow stripe broad-area diode laser mini-bars in an external resonator. Ultra-steep dielectric edge filters are used. By measuring the optical output power, the spectrum and the degree of polarization with and without external feedback, we determine loss mechanisms of the multiplexing unit.
Keywords :
"Optical fibers","Optical fiber filters","Diode lasers","Laser beams","Wavelength division multiplexing","Optical losses"
Conference_Titel :
High Power Diode Lasers and Systems Conference (HPD), 2015 IEEE
Print_ISBN :
978-1-4673-9177-1
Electronic_ISBN :
2379-0393
DOI :
10.1109/HPD.2015.7439673
