EP 0750756 A1 19970102 - ULTRA HIGH EFFICIENCY FREQUENCY CONVERTER FOR USE IN GUIDED OPTICS
Title (en)
ULTRA HIGH EFFICIENCY FREQUENCY CONVERTER FOR USE IN GUIDED OPTICS
Title (de)
WELLENLEITERFREQUENZWANDLER MIT HOHEM WIRKUNGSGRAD
Title (fr)
CONVERTISSEUR DE FREQUENCE A TRES HAUTE EFFICACITE, EN OPTIQUE GUIDEE
Publication
Application
Priority
- FR 9501677 W 19951215
- FR 9415588 A 19941223
Abstract (en)
[origin: WO9620426A1] The invention relates to a frequency converter including a waveguide and a non-linear medium (NLM) wherein the phase tuning condition between the non-linear polarisation and the generated waves is locally satisfied. The invention is characterized in that an additional layer (C) is provided on the medium (NLM), with the refractive index of said layer being such that it increases the conversion efficiency of incident waves into the waves generated within the waveguide. The layer can be a balancing conversion layer with a refractive index close to that of the medium (NLM). The conversion efficiency can be further enhanced by means of an intermediate layer (Cex) provided between layer (C) and the medium (NLM), with a refractive index close to that of the waveguide. The invention is useful in the field of frequency doublers and optical parametric oscillators.
IPC 1-7
IPC 8 full level
G02F 1/37 (2006.01); G02F 1/377 (2006.01); G02F 1/39 (2006.01)
CPC (source: EP US)
G02F 1/377 (2013.01 - EP US); G02F 1/395 (2013.01 - EP US)
Citation (search report)
See references of WO 9620426A1
Designated contracting state (EPC)
DE GB NL
DOCDB simple family (publication)
WO 9620426 A1 19960704; EP 0750756 A1 19970102; FR 2728697 A1 19960628; FR 2728697 B1 19970124; JP H09509764 A 19970930; US 5748362 A 19980505
DOCDB simple family (application)
FR 9501677 W 19951215; EP 95942752 A 19951215; FR 9415588 A 19941223; JP 52024195 A 19951215; US 69322196 A 19960821