Laser parameter measuring device for experiment teaching

Abstract

The invention discloses a laser parameter measuring device for experiment teaching. The device comprises a helium-neon laser, a variable beam expander, a first rectangular prism, a second rectangular prism, a first sliding block, a second sliding block, a first guide rail, a second guide rail, a laser power meter, a translation table, a cushion block, a bottom plate, a first supporting rod and one or more second supporting rods. The helium-neon laser and the variable beam expander are mounted on the bottom plate and are coaxially arranged; the first rectangular prism and the second rectangular prism are mounted on respective guide rails through sliding blocks; the laser power meter is mounted on the bottom plate through a cushion block; the variable beam expander is used for adjusting the spot size of the received laser, and the adjusted laser sequentially passes through the first rectangular prism and the second rectangular prism and then is received by the laser power meter; the stroke direction of the translation table is perpendicular to the axial directions of the first guide rail and the second guide rail. The translation table is used for driving the laser power meter to move to detect light spots at preset positions of a near field or a far field. The device disclosed by the invention can be used for a laser output parameter measurement experiment.

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