“Fiber coupling of high-power diode laser stack for direct polycarbonate processing”

Author: Eva Rodríguez Vidal, Iban Quintana, Urko Azkorbebeitia, Enrique Méndez, Gregorio Viera, Miguel Galán, Deitze Otaduy Date2010-02-18

We present a novel optical system for fiber coupling of a commercial high power diode laser stack and the application of this laser system to transmission welding of engineering thermoplastics. 

The diode laser stack is made up of two 20% fill factor bars, emitting at 808 nm and with a total maximum output power of 120W CW. The stack was collimated using FSAC micro-optics lenses in the fast and slow axis, with a full angle divergence of

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