公开(公告)号：JP2001094178A

公开(公告)日：2001-04-06

申请号：JP2000233874

申请日：2000-08-02

Applicant: UNITED TECHNOLOGIES CORP

Inventor： LEONBERGER FREDERICK J ,  GLENN WILLIAM H

IPC: G02B5/28 ,  G02B5/18 ,  H01S3/06 ,  H01S3/067 ,  H01S3/07 ,  H01S3/08 ,  H01S3/094 ,  H01S3/0941 ,  H01S3/139 ,  H01S3/23

Abstract: PROBLEM TO BE SOLVED: To provide a pumping optical fiber laser device which has wavelength stability and narrow emission range. SOLUTION: This laser includes an optical fiber waveguide part extended along a longitudinal direction, at least one active region doped with a rare earth in the longitudinal direction of the waveguide, and two reflectors 13 and 14 having resonance cavities formed therein and spaced from each other in the longitudinal direction. At least one of the reflectors constitutes an embedded Bragg grating, the grating has a largest reflectivity in the laser oscillation wavelength, and has a tuning means for changing the lengths of the resonance cavities to change the laser oscillation wavelength.

公开(公告)号：CA2011470C

公开(公告)日：1997-04-22

申请号：CA2011470

申请日：1990-03-05

Applicant: UNITED TECHNOLOGIES CORP

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

IPC: G02B6/122 ,  G02B6/28

Abstract: An optical power star coupler includes a LiNbO3 or LiTaO3 substrate having a major surface for receiving a circuit array of one or more 1 x 2 splitters disposed thereon by a two step proton exchange (TSPE) process, in a geometric pattern to provide an N x M star coupler having high polarization extinction, uniform splitting ratio, and low loss.

公开(公告)号：DE69034102T2

公开(公告)日：2004-07-29

申请号：DE69034102

申请日：1990-12-21

Applicant: UNITED TECHNOLOGIES CORP

Inventor： MOREY WILLIAM W ,  GLENN WILLIAM H ,  LEONBERGER FREDERICK J ,  MELTZ GERALD

IPC: G02B26/00 ,  G02B6/34 ,  G02F1/01 ,  G02F1/125 ,  G02B6/16

Abstract: A variable light filtering arrangement (10) includes at least one optical fiber section (11) including a waveguiding core (13), and at least one permanent Bragg grating region (12) in the optical fiber section. The grating region includes a plurality of grating elements constituted by periodic refractive index variations of a predetermined initial periodicity and cumulatively redirecting, of the light launched into the core for guided propagation therein, that having an axial wavelength within a narrow band around a central wavelength that is determined by the periodicity and refractive index variations of the grating elements. At least one of the periodicity and refractive index variations of the grating region is controlledly modified in such a manner as to temporarily change the central wavelength within a predetermined wavelength range.

公开(公告)号：CA2011470A1

公开(公告)日：1990-09-27

申请号：CA2011470

申请日：1990-03-05

Applicant: UNITED TECHNOLOGIES CORP

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

IPC: G02B6/122 ,  G02B6/28

Abstract: An optical power star coupler includes a LiNbO3 or LiTaO3 substrate having a major surface for receiving a circuit array of one or more surface for splitters disposed thereon by a two step proton exchange (TSPE) process, in a geometric pattern to provide an NxM star coupler having high polarization extinction, uniform splitting ratio, and low loss.

公开(公告)号：DE69034102D1

公开(公告)日：2003-10-30

申请号：DE69034102

申请日：1990-12-21

Applicant: UNITED TECHNOLOGIES CORP

Inventor： MOREY WILLIAM W ,  GLENN WILLIAM H ,  LEONBERGER FREDERICK J ,  MELTZ GERALD

IPC: G02B26/00 ,  G02B6/34 ,  G02F1/01 ,  G02F1/125 ,  G02B6/16

Abstract: A variable light filtering arrangement (10) includes at least one optical fiber section (11) including a waveguiding core (13), and at least one permanent Bragg grating region (12) in the optical fiber section. The grating region includes a plurality of grating elements constituted by periodic refractive index variations of a predetermined initial periodicity and cumulatively redirecting, of the light launched into the core for guided propagation therein, that having an axial wavelength within a narrow band around a central wavelength that is determined by the periodicity and refractive index variations of the grating elements. At least one of the periodicity and refractive index variations of the grating region is controlledly modified in such a manner as to temporarily change the central wavelength within a predetermined wavelength range.

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.