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.

Power scaling of laser diode modules using high-power DBR chips / Mirigaldi, Alessandro; Serafini, Valentina; Gotta, Paola; Pippione, Giulia; Coriasso, Claudio; Paoletti, Roberto; Perrone, Guido. - ELETTRONICO. - (2020), p. 31. ((Intervento presentato al convegno PHOTONICS WEST 2020 - SPIE LASE tenutosi a San Francisco, CA, USA nel 2 March 2020) [10.1117/12.2544947].

Power scaling of laser diode modules using high-power DBR chips

Mirigaldi, Alessandro;Serafini, Valentina;Perrone, Guido
2020

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.
File in questo prodotto:
File Dimensione Formato  
112620W.pdf

accesso aperto

Tipologia: 2a Post-print versione editoriale / Version of Record
Licenza: PUBBLICO - Tutti i diritti riservati
Dimensione 655.64 kB
Formato Adobe PDF
655.64 kB Adobe PDF Visualizza/Apri
Pubblicazioni consigliate

Caricamento pubblicazioni consigliate

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11583/2800252