(19)
(11)
EP 0 873 612 A1
(12)
(43)
Date of publication:
28.10.1998
Bulletin 1998/44
(21)
Application number:
97937299.0
(22)
Date of filing:
29.07.1997
(51)
International Patent Classification (IPC):
G02F
1/
31
( . )
H04B
10/
213
( . )
H04B
10/
00
( . )
H04J
14/
02
( . )
(86)
International application number:
PCT/US1997/014463
(87)
International publication number:
WO 1998/009396
(
05.03.1998
Gazette 1998/09)
(84)
Designated Contracting States:
DE FR GB IT SE
(30)
Priority:
29.08.1996
US 19960024993P
(71)
Applicant:
CORNING INCORPORATED
Corning, N.Y. 14831 (US)
(72)
Inventors:
MORROW, Alan, J.
Elmira, NY 14903 (US)
ROTH, Richard
Boulder, CO 80304 (US)
(74)
Representative:
Boon, Graham Anthony, et al
Elkington and Fife, Prospect House, 8 Pembroke Road
Sevenoaks, Kent TN13 1XR
Sevenoaks, Kent TN13 1XR (GB)
(54)
SWITCHABLE WAVELENGTH ADD/DROP COMPONENT