公开(公告)号：US12038330B2

公开(公告)日：2024-07-16

申请号：US17617433

申请日：2020-06-08

Applicant: UNIVERSITE LAVAL

Inventor： Zhongjin Lin ,  Wei Shi

IPC: G01J4/04 ,  G02B27/28

CPC classification number: G01J4/04 ,  G02B27/283

Abstract: There is described a polarimeter generally having a substrate; a polarization splitter on the substrate polarization splitting an incoming light beam into light beams; an interferometry circuit on the substrate forming polarization components from the light beams, and output waveguides outputting the polarization components. The interferometer circuit having a first power splitter splitting one of the light beams into first and second phase-retardant waveguides; a second power splitter splitting another one of the light beams into third and fourth phase-retardant waveguides being asymmetric with respect to the first and second phase-retardant waveguides; a first polarization coupler coupling the first and third phase-retardant waveguides to one another; and a second first polarization coupler polarization coupling the second and fourth phase-retardant waveguides to one another, in which intensities of the polarization components and an interferometry pattern of the interferometry circuit are indicative of a state of polarization of the incoming light beam.