EP 1161696 A1 20011212 - 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
Application
Priority
- CA 0000253 W 20000310
- US 12370599 P 19990310
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
IPC 8 full level
G02F 1/01 (2006.01)
CPC (source: EP)
G02B 6/022 (2013.01); G02F 1/0115 (2013.01)
Citation (search report)
See references of WO 0054082A1
Citation (examination)
EP 0989437 A1 20000329 - LUCENT TECHNOLOGIES INC [US]
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 0054082 A1 20000914; AU 3266000 A 20000928; CA 2366011 A1 20000914; CN 1365449 A 20020821; EP 1161696 A1 20011212
DOCDB simple family (application)
CA 0000253 W 20000310; AU 3266000 A 20000310; CA 2366011 A 20000310; CN 00806103 A 20000310; EP 00910443 A 20000310