Device for injecting the light energy of a laser beam into a...

Details Device for injecting the light energy of a laser beam into a... Device for injecting the light energy of a laser beam into a...

G - Physics

02

B

G02B 6/42 (2006.01)

Patent

CA 2026594

In a device for injecting the light energy of a laser beam into a multimode fibre-optic optical waveguide (2) a small part of the light emerging from the end face of the optical waveguide (2) is projected through a beam splitting cube (7) and a reproducing lens (21) onto a display screen (1), so that an image (24) of the end face of the optical waveguide (2) can be observed on the display screen (1). The arrangement is such that the system is correctly focused only when the distance between the optical waveguide (2) and a focusing point of the laser beam (12) reaches an intended value. The light spot of the laser beam on the end face of the optical waveguide (2) is clearly visible on the display screen (1) so that an optimum positioning and adjustment can be readily effected.

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