G - Physics – 02 – B
Patent
G - Physics
02
B
G02B 6/34 (2006.01)
Patent
CA 2440198
A novel method and apparatus for fabrication of blazed and slanted fiber Bragg gratings is disclosed. The method comprises the step of simultaneously exposing the fiber with two mutually coherent light beams so as to create an interference pattern along a longitudinal axis of the fiber, wherein each one of said beams is brought into a line focus, which coincides with the core of the fiber. Further, the plane comprising the beams is rotated to provide a second angle relative to the fiber direction, said rotation giving rise to a blazing angle of the photo-induced grating elements.
L'invention concerne un procédé et un appareil permettant de fabriquer des réseaux de Bragg à fibres blazés et inclinés. Le procédé comporte l'étape consistant à exposer la fibre de manière simultanée à deux faisceaux optiques mutuellement cohérents de manière à créer un motif d'interférence le long de l'axe longitudinal de la fibre, chacun desdits faisceaux étant focalisé en un foyer linéaire qui coïncide avec le coeur de la fibre. Ensuite, le plan contenant les faisceaux subit une rotation pour créer un deuxième angle par rapport au sens de la fibre, ladite rotation engendrant un angle de blazage des éléments de réseau photo-induits.
Fetherstonhaugh & Co.
Proximion Fiber Optics Ab
Proximion Fiber Systems Ab
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