(19)
(11) EP 1 423 740 A1

(12)

(43) Date of publication:
02.06.2004 Bulletin 2004/23

(21) Application number: 02737888.4

(22) Date of filing: 19.03.2002
(51) International Patent Classification (IPC)7G02B 6/28, G02F 1/313
(86) International application number:
PCT/EP2002/003078
(87) International publication number:
WO 2002/079833 (10.10.2002 Gazette 2002/41)
(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: 30.03.2001 EP 01108125

(71) Applicant: Corning O.T.I. SRL
20097 San Donato Milanese,Milano (IT)

(72) Inventors:
  • CORIO, Valeria
    I-20157 Milano (IT)
  • PIANCIOLA, Aurelia
    I-27045 Casteggio (PV) (IT)

(74) Representative: Poole, Michael John 
Corning LimitedPatents & Licensing DepartmentQuantum House,Maylands Avenue
Hemel Hempstead, Herts. HP2 7DE
Hemel Hempstead, Herts. HP2 7DE (GB)

   


(54) MACH-ZEHNDER INTERFEROMETER AND METHOD OF MANUFACTURE THEREOF