EP 1506441 A2 20050216 - GIRES-TOURNOIS ETALONS AND DISPERSION COMPENSATION
Title (en)
GIRES-TOURNOIS ETALONS AND DISPERSION COMPENSATION
Title (de)
GIRES-TOURNOIS ETALON UND DISPERSIONSKOMPENSATOR
Title (fr)
ETALONS DE GIRES-TOURNOIS ETALONS ET COMPENSATION DE DISPERSION
Publication
Application
Priority
- GB 0302046 W 20030513
- GB 0210899 A 20020513
- US 29189802 A 20021108
Abstract (en)
[origin: WO03096082A2] A first embodiment of the invention provides a Gires-Tournois etalon (DGTE) (20) comprising a cladding mode suppressed optical fibre (22), including an etalon section (24) in which a weakly reflective optical waveguide grating (26) and a strongly reflective optical waveguide grating (28) are provided. The two gratings (26, 28) are chirped fibre Bragg gratings (FBGs). The chirped FBGs (26, 28) are arranged to together define an etalon cavity. Another aspect of the invention provides a dispersion compensator (60) comprising two DGTEs (62, 64) according to the first embodiment of the invention. The DGTEs (62, 64) have a linearly varying dispersion over a selected optical bandwidth. The first DGTE (62) has a positive dispersion slope and the second DGTE (64) has a negative dispersion slope. The magnitudes of the dispersion slopes of the two DGTEs (62, 64) are substantially equal, so that the dispersion compensator (60) has a constant dispersion across the selected bandwidth. The DGTEs (62, 64) are optically coupled to one another via a four-port optical circulator (66).
IPC 1-7
IPC 8 full level
G02B 6/12 (2006.01); G02B 6/34 (2006.01); H04B 10/18 (2006.01); H04B 10/2519 (2013.01)
CPC (source: EP)
G02B 6/12007 (2013.01); G02B 6/29358 (2013.01); H04B 10/2519 (2013.01); G02B 6/02085 (2013.01)
Citation (search report)
See references of WO 03096082A2
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 03096082 A2 20031120; WO 03096082 A3 20040311; AU 2003230022 A1 20031111; AU 2003230022 A8 20031111; EP 1506441 A2 20050216
DOCDB simple family (application)
GB 0302046 W 20030513; AU 2003230022 A 20030513; EP 03722862 A 20030513