EP 1232415 A2 20020821 - OPTICAL SWITCHING/MODULATION DEVICE
Title (en)
OPTICAL SWITCHING/MODULATION DEVICE
Title (de)
OPTISCHE SCHALT/MODULATIONSVORRICHTUNG
Title (fr)
DISPOSITIF OPTIQUE DE COMMUTATION/MODULATION
Publication
Application
Priority
- EP 00974517 A 20001109
- EP 0011128 W 20001109
- EP 99123324 A 19991123
- US 16791799 P 19991130
Abstract (en)
[origin: WO0138933A2] An optical switching/modulation device (1) comprises a substrate (2) made from lithium niobate, a first, a second and a third waveguide (3-5) for the light, formed on the substrate and forming a Y structure, a central electrode (6) lying between the second and third waveguide (4, 5) and a pair of outer electrodes (7, 8) adjacent to the second and third waveguide (4, 5) respectively on opposite sides from the central electrode (6); the waveguides (3-5) are connected by means of a connecting waveguide (10) having a longitudinal axis (9) and including a multimodal transmission region (14); the central electrode (6) has a longitudinal extension (6b) extending within the multimodal region (14) and having an end (6c) terminating within the multimodal region (14), in such a way that a particularly high value of the extinction ratio of the device can be provided.
IPC 1-7
IPC 8 full level
G02F 1/313 (2006.01)
CPC (source: EP)
G02F 1/3137 (2013.01); G02F 2201/122 (2013.01); G02F 2202/20 (2013.01)
Citation (search report)
See references of WO 0138933A2
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
WO 0138933 A2 20010531; WO 0138933 A3 20011108; AU 1279201 A 20010604; EP 1232415 A2 20020821
DOCDB simple family (application)
EP 0011128 W 20001109; AU 1279201 A 20001109; EP 00974517 A 20001109