公开(公告)号：US09837785B2

公开(公告)日：2017-12-05

申请号：US15140067

申请日：2016-04-27

Applicant: SHENZHEN UNIVERSITY

Inventor： Qiao Wen ,  Guowen Liang ,  Ji Li ,  Hanben Niu

IPC: G01C19/66 ,  H01S3/08 ,  H01S3/10 ,  H01S3/083 ,  G01B9/02

CPC classification number: H01S3/08059 ,  G01B9/02003 ,  G01B9/02023 ,  G01B2290/70 ,  H01S3/06712 ,  H01S3/06791 ,  H01S3/08013 ,  H01S3/082 ,  H01S3/083 ,  H01S3/10061

Abstract: Systems and apparatuses for a polarization laser sensor are disclosed. The polarization laser sensor can include a pump source, a common section, a reference section and a detection section. The common section is provided with a gain medium, and the detection section is provided with a sensing element configured to cause an optical path difference. The reference section and the detection section are connected to the common section though a first polarization splitting unit and a second polarization splitting unit. The common section is provided with an output unit or each of the reference section and the detection is provided with the output unit, the output unit is connected to a photoelectric detector through a light uniting unit, and a polarization rotation unit is disposed between the light uniting unit and the output unit.

公开(公告)号：US09772188B2

公开(公告)日：2017-09-26

申请号：US15140059

申请日：2016-04-27

Applicant: SHENZHEN UNIVERSITY

Inventor： Qiao Wen ,  Guowen Liang ,  Ji Li ,  Hanben Niu

IPC: G01C19/66 ,  H01S3/067

CPC classification number: G01C19/661 ,  H01S3/06712 ,  H01S3/06791 ,  H01S3/082 ,  H01S3/1061

Abstract: A frequency based ring laser sensor is disclosed. The sensor includes a pump source, a common section, and a reference section and a detection section. The common section is provided with a gain medium. The common section and the reference section form a first ring laser resonator, and the common section and the detection section form a second ring laser resonator. Laser beams are transmitted oppositely in the first ring laser resonator and the second ring laser resonator. The detection section is provided with a sensing element capable of causing an optical path difference. The common section is provided with an output unit or each of the reference section and the detection is provided with the output unit, and the output unit is connected to a photoelectric detector through a light uniting unit.