EP 3516436 A1 20190731 - OPTICAL GUIDE COMPRISING A BEND WITH A PSEUDO-INDEX GRADIENT
Title (en)
OPTICAL GUIDE COMPRISING A BEND WITH A PSEUDO-INDEX GRADIENT
Title (de)
OPTISCHE FÜHRUNG MIT EINER BIEGUNG MIT EINEM PSEUDO-INDEX-GRADIENTEN
Title (fr)
GUIDE OPTIQUE PRÉSENTANT UN VIRAGE À PSEUDO-GRADIENT D'INDICE
Publication
Application
Priority
- FR 1658809 A 20160920
- FR 2017052479 W 20170918
Abstract (en)
[origin: WO2018055267A1] The invention relates to an optical guide (1) comprising a core that has a entrance segment (10) that is rectilinear in an entrance direction (E), an exit segment (20) that is rectilinear in an exit direction (S), and a transition segment (30) between the rectilinear entrance segment (10) and the rectilinear exit segment (20). The exit direction is different from the entrance direction so that light propagates between the entrance segment and the exit segment in a propagation direction that has a bend (V) having an interior side (CI) and an exterior side (CE). The transition segment (30) comprises a region (40) with a pseudo-index gradient, this region having an interior edge (BI) on the interior side (CI) of the bend (V) and an exterior edge (BE) on the exterior side (CE) of the bend (V). The region (40) with the pseudo-index gradient comprises trenches formed in the core in order to make a refractive index decrease from the interior edge to the exterior edge.
IPC 8 full level
G02B 6/125 (2006.01)
CPC (source: EP US)
G02B 6/125 (2013.01 - EP US); G02B 6/14 (2013.01 - EP US); G02B 2006/12119 (2013.01 - US)
Citation (search report)
See references of WO 2018055267A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
FR 3056306 A1 20180323; FR 3056306 B1 20191122; EP 3516436 A1 20190731; US 10551563 B2 20200204; US 2019212493 A1 20190711; WO 2018055267 A1 20180329
DOCDB simple family (application)
FR 1658809 A 20160920; EP 17780484 A 20170918; FR 2017052479 W 20170918; US 201716332846 A 20170918