EP 1047974 A1 20001102 - TUNABLE OPTICAL DEVICE
Title (en)
TUNABLE OPTICAL DEVICE
Title (de)
ABSTIMMBARE OPTISCHE VORRICHTUNG
Title (fr)
DISPOSITIF OPTIQUE ACCORDABLE
Publication
Application
Priority
- EP 98959051 A 19981211
- EP 97310543 A 19971223
- GB 9803713 W 19981211
Abstract (en)
[origin: EP0926536A1] A method of fabricating a tunable optical device, and a device fabricated according to the method, where the tuning means include a liquid crystal material (5) in an enclosed cavity (3) fabricated over an optical element (1), typically a waveguide, and the cavity is created by the removal, through selective etching, of a layer of quaternary indium gallium arsenide phosphide (18) through a slot (8) etched in a layer of indium phosphide (4) formed over the quaternary layer.
IPC 1-7
IPC 8 full level
G02F 1/1333 (2006.01); G02F 1/1339 (2006.01); G02F 1/1337 (2006.01)
CPC (source: EP)
G02F 1/1326 (2013.01); G02F 1/1339 (2013.01); G02F 1/1337 (2013.01)
Citation (search report)
See references of WO 9934249A1
Designated contracting state (EPC)
DE FR GB IE IT
DOCDB simple family (publication)
EP 0926536 A1 19990630; CA 2310811 A1 19990708; EP 1047974 A1 20001102; WO 9934249 A1 19990708; WO 9934249 A8 19990916
DOCDB simple family (application)
EP 97310543 A 19971223; CA 2310811 A 19981211; EP 98959051 A 19981211; GB 9803713 W 19981211