Laser Speckle Reducers

Edmund Optics has introduced a range of Laser Speckle Reducers, which are ideal for a wide variety of beam homegenisation, 3D scanning, metrology, microscopy and interferometry applications.

The devices remove local interferences and greatly reduce speckle noise in laser systems. This is done by dynamically diffusing the laser beam. Diffusing angles of 1°, 10° and 20° are offered, providing maximum versatility for a wide range of uses. Laser Speckle Reducers are compact for ease of handling and integration. They feature integrated drive electronics and provide vibration-less speckle reduction.

Laser Speckle Reducers utilise four electro-optic polymers, which selectively move each Laser Speckle Reducer's central diffuser along the X and Y axis to form a circular pattern of motion.  As a result, the Laser Speckle Reducers adjust the laser speckle pattern to appear as a uniform distribution of light. To take advantage of maximum laser speckle reduction, the user would position the Laser Speckle Reducers perpendicular to the laser beam and use a collimated laser source with beam diameter equivalent to the Laser Speckle Reducers' clear aperture.

The devices are USB powered for convenience and ease of use. They are offered in models with either a 5mm or 10mm clear aperture and with diffusion angles of 1°, 10° or 20°.