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1. (WO2018104456) LASER ARRANGEMENT AND METHOD FOR PRODUCING A LASER ARRANGEMENT

Pub. No.:    WO/2018/104456    International Application No.:    PCT/EP2017/081836
Publication Date: Fri Jun 15 01:59:59 CEST 2018 International Filing Date: Fri Dec 08 00:59:59 CET 2017
IPC: H01S 5/042
G02F 1/17
G02F 1/015
Applicants: FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
Inventors: CHOI, Jung Han
BACH, Heinz-Gunter
YAN, Lei
Title: LASER ARRANGEMENT AND METHOD FOR PRODUCING A LASER ARRANGEMENT
Abstract:
The invention relates to a laser arrangement, comprising an electroabsorption-modulated laser (11), which has a laser section (111) and an electroabsorption modulator section (112); a current source (17) for supplying current to the laser section (111); a DC voltage source (15) arranged in addition to the current source (17), via which DC voltage source a DC voltage (V rev) can be applied to a diode structure (1121) of the electroabsorption modulator section (112); a driver (13), by which an RF signal can be fed to the laser (11); an electrical connection (14), via which the driver (13) is connected to the laser (11). According to the invention, via the electrical connection (14) between the driver (13) and the laser (11) there exists a DC connection of such a type and the driver is designed in such a way that a photocurrent (I photo) generated in an electroabsorption modulator section (112) of the laser (11) as a result of illumination with light from the laser section (111) at least partly flows to the driver (13) and at least contributes to the energy supply of the driver (13). The invention also relates to a method for producing a laser arrangement.