公开(公告)号：US20230268716A1

公开(公告)日：2023-08-24

申请号：US18017608

申请日：2021-07-22

Applicant: National Research Council of Canada

Inventor： Grzegorz PAKULSKI ,  Mohamed RAHIM ,  Michel MORIN ,  Simon AYOTTE ,  Keven BÉDARD ,  Muhammad MOHSIN

IPC: H01S5/068 ,  H01S5/125 ,  H01S5/227 ,  H01S5/042 ,  H01S5/22 ,  H01S5/10 ,  H01S5/0625

CPC classification number: H01S5/06817 ,  H01S5/125 ,  H01S5/227 ,  H01S5/0425 ,  H01S5/2223 ,  H01S5/1014 ,  H01S5/06255 ,  H01S5/101 ,  H01S2301/02

Abstract: A laser comprising a narrow linewidth, comprising: a grating along a laser cavity; a laser waveguide having a plurality of waveguide sections corresponding to a plurality of grating sections, each of the plurality of waveguide sections having a ridge/mesa width for detuning the grating in each of the plurality of grating sections; and a plurality of contact electrodes contacting each of the plurality of waveguide sections, the plurality of contact electrodes for applying a different current to each of the plurality of waveguide sections to enable active feedback noise suppression.