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Beam-Shaping Lenses

Photonics Spectra
Aug 2015
Edmund Optics Inc.Request Info
BARRINGTON, N.J. — Edmund Optics Beam TwistersBeam Twisters from Edmund Optics Inc. are suitable for pairing with slow-axis collimators for complete laser beam collimation.

The new beam-shaping lenses are used to rotate beams emitted by individual laser bars by 90° using a preassembled, proprietary molded-glass twister array combined with a fast-axis collimator lens of S-TiH53.

Light emitted initially from a laser bar appears to be in the shape of a line. Once it has passed through the Beam Twister, the laser bar's light transmission is transformed into a square shape by its 90° rotation. This square configuration is beneficial to a laser line because it allows the beam to be focused into a spot, which may be used with fiber optics or a variety of other beam-delivery systems.

Providing >97 percent transmission, the lenses feature near-IR coatings with an average reflectance <0.5 percent at 800 to 1000 nm. A 24-emitter model with 400-μm pitch and a 19-emitter version with 500-μm pitch are available.


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