G - Physics – 02 – B
Patent
G - Physics
02
B
G02B 9/06 (2006.01) G02B 6/26 (2006.01) G02B 6/28 (2006.01) G02B 6/32 (2006.01) G02B 6/34 (2006.01) G02B 27/30 (2006.01)
Patent
CA 2237319
This invention relates to optical devices that use lenses for collimating and focusing light therethrough, and more particularly for a device that utilizes these lenses to provide a suitable beam for use in combination with a thick optical component. An optical element is disposed between two GRIN collimating lenses. Waveguides adjacent to and spaced from each of the two lenses are provided for launching light to or from a respective adjacent lens. The waveguides each having an end that is separated from its adjacent lens by an optical distance of approximately d1, an optical distance between the two substantially collimating end faces of the at least two lenses being d2, where d1 is approximately equal to one half of d2, and wherein d1 > 0. By providing this arrangement coupling of light propagating through a substantially thick component into a waveguide is enhanced.
La présente invention porte sur des dispositifs optiques qui utilisent des lentilles pour collimater et concentrer la lumière, et plus particulièrement sur un dispositif qui utilise ces lentilles pour fournir un faisceau convenable à utiliser avec un composant optique épais. Un élément optique est disposé entre deux lentilles collimatrices GRIN. Des guides d'ondes adjacents à chacune des deux lentilles et écartées de chacune d'elles permettent de projeter la lumière vers une lentille adjacente respective ou à partir de cette dernière. Les guides d'ondes ont chacun une extrémité qui est séparée de leur lentille adjacente d'une distance optique d'environ d1, la distance optique entre les deux faces d'extrémité sensiblement collimatrices des deux lentilles est d'au moins d2, où d1 est approximativement égale à la moitié de d2, et où d1 > 0. Grâce à cette disposition, le couplage de la lumière se propageant à travers un composant sensiblement épais dans un guide d'ondes est amélioré.
Jds Fitel Inc.
Jds Uniphase Inc.
Teitelbaum Neil
LandOfFree
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