(19)
(11) EP 1 352 275 A1

(12)

(43) Date of publication:
15.10.2003 Bulletin 2003/42

(21) Application number: 01983348.2

(22) Date of filing: 29.10.2001
(51) International Patent Classification (IPC)7G02B 6/34, G02F 1/313
(86) International application number:
PCT/CA0101/529
(87) International publication number:
WO 0204/4780 (06.06.2002 Gazette 2002/23)
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 30.11.2000 CA 2327117
30.05.2001 CA 2349374

(71) Applicant: Institut National d'Optique
Sainte-Foy,Quebec G1P 4S4 (CA)

(72) Inventors:
  • LAUZON, Jocelyn
    Saint-Augustin-de-Desmaures, Québec G3A (CA)
  • CORTES, Pierre-Yves
    Sillery, Québec G1T 2K1 (CA)

(74) Representative: Domenego, Bertrand et al
Cabinet Lavoix2, place d'Estienne d'Orves
75441 Paris Cedex 09
75441 Paris Cedex 09 (FR)

   


(54) GRATING ASSISTED ASYMMETRIC DIRECTIONAL COUPLER