G - Physics – 02 – B
Patent
G - Physics
02
B
G02B 6/42 (2006.01)
Patent
CA 2356997
Coupling system between an optical waveguide (1) and an optical device (8) suitable for receiving and/or transmitting an optical beam having a first maximum MFR, comprising a single-mode optical fibre (1) having at one end a portion (10) of its core (2) expanded with a second MFR. An aspherical lens (6) is formed on said end of the fibre (1). Said aspherical lens comprises a pair of inclined surfaces (41, 42) which intersect on a line, generating an edge, in a position substantially corresponding to the centre of said core (2), said edge is rounded to form an aspherical profile.
L'invention concerne un système de couplage entre un guide d'onde optique (1) et un dispositif optique (8) permettant de recevoir et/ou transmettre un faisceau optique qui présente une première valeur de MFR maximale, qui comporte une fibre optique (1) monomode qui, à une extrémité, possède une partie (10) de coeur (2) expansée de façon à présenter une deuxième valeur de MFR. Une lentille asphérique (6) est formée sur ladite extrémité de la fibre (1). Ladite lentille asphérique présente deux surfaces (41, 42) inclinées qui se coupent sur une ligne, formant un bord, dans une position correspondant sensiblement au centre dudit coeur (2), ledit bord étant arrondi pour former un profil asphérique.
de Donno Marco
Schiattone Francesco
Kirby Eades Gale Baker
Optical Technologies Italia S.p.a.
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