Global Patent Index - EP 1161696 A1

EP 1161696 A1 2001-12-12 - TENSION CONTROL MECHANISM FOR BRAGG GRATING DEVICES

Title (en)

TENSION CONTROL MECHANISM FOR BRAGG GRATING DEVICES

Title (de)

SCNAPPKONTROLLMECHANISMUS FÜR BRAGG GITTER VORRICHTUNG

Title (fr)

MECANISME DE COMMANDE DE TENSION POUR DISPOSITIFS A RESEAUX DE BRAGG

Publication

EP 1161696 A1 (EN)

Application

EP 00910443 A

Priority

  • CA 0000253 W
  • US 12370599 P

Abstract (en)

[origin: WO0054082A1] The present invention provides a mechanism for controlling the tension of a guided wave fiber Bragg grating (12) device. The tension imposed on a guided wave fiber Bragg grating (12) can be used to control its spectral characteristics as desired. For example, the center wavelength of a fiber Bragg grating (12) can be directly controlled by the tension imposed on the fiber, and in the case of a nonlinearly chirped grating, its effective group delay properties can also be controlled by fiber tension. These examples are directly related to applications in sensing, and in WDM filters and dispersion compensation devices. The tension control mechanism for controlling the spectral properties of a fiber Bragg grating (12) includes a support structure (18) to which the fiber Bragg grating (12) is attached at a first (20) and second (22) portion. The support structure (18) includes an adjustment mechanism (30) whereby adjustment of the support structure in one direction increases tension in the fiber Bragg grating (12) and adjustement of the support structure (18) in the other direction decreases tension in the fiber Bragg grating (12).

IPC 1-7 (main, further and additional classification)

G02B 6/16; G02F 1/01

IPC 8 full level (invention and additional information)

G02F 1/01 (2006.01)

CPC (invention and additional information)

G02B 6/022 (2013.01); G02F 1/0115 (2013.01)

Citation (search report)

See references of WO 0054082A1

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

WO 0054082 A1 20000914; AU 3266000 A 20000928; CA 2366011 A1 20000914; CN 1365449 A 20020821; EP 1161696 A1 20011212

INPADOC legal status


2003-04-16 [18D] APPLICATION DEEMED TO BE WITHDRAWN

- Effective date: 20021016

2002-03-06 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20020121

2002-01-23 [RAP1] TRANSFER OF RIGHTS OF AN APPLICATION

- Owner name: JDS UNIPHASE CORPORATION

2001-12-12 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20011008

2001-12-12 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

2001-12-12 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO:

- Free text: AL;LT;LV;MK;RO;SI