Author:
Franken C.A.A.,Winkler L.V.,do Nascimento A.R.,van Rees A.,Dekker R.,Hoekman M.,Schrinner P. P. J.,van Kerkhof J.,van der Slot P.J.M.,Boller K.-J.
Abstract
We present the first hybrid integrated, extended cavity diode laser (ECDL) in the blue wavelength range. Integrating a CMOS-compatible silicon nitride (Si3N4) feedback circuit with a gallium nitride amplifier, we obtain 8.5 nm wide tuning around 454 nm.