EP 3980823 A1 20220413 - OPTICAL WAVEGUIDE
Title (en)
OPTICAL WAVEGUIDE
Title (de)
LICHTWELLENLEITER
Title (fr)
FIBRE OPTIQUE
Publication
Application
Priority
- DE 102019114974 A 20190604
- EP 2020065422 W 20200604
Abstract (en)
[origin: WO2020245244A1] The invention relates to an optical waveguide comprising two or more light-guiding cores (1a-1e) which extend continuously from one end of the optical waveguide to the other along the longitudinal extent of said optical waveguide in a manner parallel to and at a distance from one another, and comprising a first cladding (2) surrounding the cores (1a-1e). The problem addressed by the invention is that of providing a multi-core optical waveguide for high-power operation with a reduced system complexity in relation to the prior art. According to the invention, this problem is solved by virtue of the cores (1a-1e) being arranged with respect to one another and spaced apart from one another in such a way that the propagation modes of the light propagating in the optical waveguide at a working wavelength couple to one another, wherein the length of the optical waveguide is chosen in such a way that the light input coupled into only a single one of the cores (1a-1e) at one end of the optical waveguide initially spreads to the other cores (1a-1e) during the propagation through the optical waveguide and, after passing through the optical waveguide, leaves the optical waveguide at the other end again from a single core (1a), with at least 60%, preferably at least 75%, of the total luminous power propagating in the optical waveguide. Moreover, the invention relates to a laser system comprising such an optical waveguide as an optical amplifier, and to a method for guiding light in an optical waveguide.
IPC 8 full level
G02B 6/02 (2006.01); G02B 6/28 (2006.01); G02B 6/293 (2006.01); G02B 6/42 (2006.01); H01S 3/067 (2006.01); H01S 3/094 (2006.01); H01S 3/23 (2006.01)
CPC (source: CN EP US)
G02B 6/02042 (2013.01 - CN EP US); G02B 6/021 (2013.01 - US); H01S 3/06737 (2013.01 - CN EP); H01S 3/06754 (2013.01 - CN EP); G02B 6/2821 (2013.01 - EP); G02B 6/29331 (2013.01 - EP); G02B 6/4296 (2013.01 - EP); H01S 3/06733 (2013.01 - EP); H01S 3/094007 (2013.01 - EP); H01S 3/09415 (2013.01 - EP)
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)
WO 2020245244 A1 20201210; CN 114072710 A 20220218; CN 114072710 B 20240531; DE 102019114974 A1 20201210; EP 3980823 A1 20220413; US 12032201 B2 20240709; US 2022326431 A1 20221013
DOCDB simple family (application)
EP 2020065422 W 20200604; CN 202080047878 A 20200604; DE 102019114974 A 20190604; EP 20734649 A 20200604; US 202017616720 A 20200604