公开(公告)号：CA2011469A1

公开(公告)日：1990-09-27

申请号：CA2011469

申请日：1990-03-05

Applicant: UNITED TECHNOLOGIES CORP

Inventor： SUCHOSKI PAUL G JR ,  FINDAKLY TALAL K ,  FERRAR CARL M ,  LEONBERGER FREDERICK J

IPC: G01C19/72 ,  G02B6/122 ,  G02B6/13 ,  G02B6/134 ,  G02F1/035 ,  G01C19/66

Abstract: Single-Polarization, Integrated Optical Components for Optical Gyroscopes A FOG system with a high polarization extinction ratio includes an integrated optic circuit (IOC) having a waveguide array fabricated by a proton exchange (PE) process, the IOC being operatively connected for providing single mode, single polarization filtering of incident light guided from the FOG light source to the sensing loop and of the interference signal guided from the sensing loop to the detector.

公开(公告)号：DE3432989A1

公开(公告)日：1985-07-04

申请号：DE3432989

申请日：1984-09-07

Applicant: UNITED TECHNOLOGIES CORP

Inventor： MELTZ GERALD ,  ALLEN JUN LOUIS B ,  FERRAR CARL M

IPC: G01L11/00 ,  G01L1/24 ,  G01L9/00 ,  G01L11/02

Abstract: An integrated optical pressure transducer having a diaphragm fabricated from a low-loss glass is positioned at the location where pressure changes are to be measured. An optical waveguide loop formed on one surface of the diaphragm acts as a ring cavity in which the difference between the resonating frequencies varies with pressure but not with temperature. Light energy is coupled into the waveguide loop from an optical source through a tangentially located input waveguide. An output waveguide, also tangentially located, couples light energy from the waveguide loop to a broadband detector so that the changes in frequency spectrum of the resonating frequencies within the waveguide loop can be monitored.

公开(公告)号：CA1220048A

公开(公告)日：1987-04-07

申请号：CA459286

申请日：1984-07-19

Applicant: UNITED TECHNOLOGIES CORP

Inventor： MELTZ GERALD ,  ALLEN LOUIS B JR ,  FERRAR CARL M

IPC: G01L11/00 ,  G01L1/24 ,  G01L9/00 ,  G01L11/02

Abstract: Temperature Compensated Optical Pressure Sensor An integrated optical pressure transducer having a diaphragm fabricated from a low-loss glass is positioned at the location where pressure changes are to be measured. An optical waveguide loop formed on one surface of the diaphragm acts as a ring cavity in which the difference between the resonating frequencies varies with pressure but not with temperature. Light energy is coupled into the waveguide loop from an optical source through a tangentially located input waveguide. An output waveguide, also tangentially located, couples light energy from the waveguide loop to a broadband detector so that the changes in frequency spectrum of the resonating frequencies within the waveguide loop can be monitored.