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Proceedings Paper

Power scaling of laser diode modules using high-power DBR chips
Author(s): Alessandro Mirigaldi; Valentina Serafini; Paola Gotta; Giulia Pippione; Claudio Coriasso; Roberto Paoletti; Guido Perrone
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Paper Abstract

A family of laser diode modules emitting hundreds of watt and based on intrinsically wavelength stabilized narrow linewidth high-power Distributed Bragg Reflector (DBR) chips has been manufactured and fully characterized. The module layout exploits a proprietary architecture to combine through spatial and wavelength multiplexing several highly manufacturable chips that integrate a grating and therefore do not require additional external stabilization devices to allow dense wavelength multiplexing. Power levels going from 200W to 400W in a 135 micron core fiber have been achieved using two to four wavelengths. The narrow spectral emission of each chip makes the modules suitable not only for direct-diode material processing, but also for laser pumping.

Paper Details

Date Published: 2 March 2020
PDF: 6 pages
Proc. SPIE 11262, High-Power Diode Laser Technology XVIII, 112620W (2 March 2020); doi: 10.1117/12.2544947
Show Author Affiliations
Alessandro Mirigaldi, Politecnico di Torino (Italy)
Valentina Serafini, Politecnico di Torino (Italy)
Paola Gotta, Convergent Photonics (Italy)
Giulia Pippione, Convergent Photonics (Italy)
Claudio Coriasso, Convergent Photonics (Italy)
Roberto Paoletti, Convergent Photonics (Italy)
Guido Perrone, Politecnico di Torino (Italy)

Published in SPIE Proceedings Vol. 11262:
High-Power Diode Laser Technology XVIII
Mark S. Zediker, Editor(s)

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