BEX-355-2 COHERENT | Alldatasheet
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ii-vi.com CONTACT US sales@ii-vi.com Rev. 01 © 2021 II-VI Incorporated Legal notices: ii-vi.com/legal Beam Expanders PRODUCT OVERVIEW For many laser based applications, beam expanders are critical components within an optical system. Their primary function is to expand the diameter of a collimated laser beam and decrease beam divergence. In some cases, they are also used to reduce the beam diameter to ultimately create a smaller focused spot size. Designs are based on the fundamental principles of the Galilean telescope. All assembly is performed inside an ultra- clean environment, with optimized coating, suitable for high power laser irradiation.
Different Specifications is available upon request D.L. is diffraction limit by design. ■ Microelectronic (drilling, marking and labeling) ■ Semiconductor industry (marking, engraving, drilling) ■ Automotive industry (welding, cutting, drilling) ■ Medical device (marking, engraving, drilling)
Applications
Features
■ Available from 266nm to 1080nm ■ Fixed and variable magnification ■ Low coating absorption and low thermal shift ■ In-house control of critical manufacturing processes from design to prototype and mass production ■ Robust and compact ■ Customized configurations availability and flexibility ■ Comprehensive testing technique Item BEX-355-2 BEX-355-3 BEX-355-5 BEX-355-6 BEX-1064&532-10 Wavelength (nm) 355 355 355 355 1064&532 Expansion ratio (times) 2 3 5 6 10 Input clear aperture (mm) 8 8 7.5 7 4 Optimized input beam Φ 1/e^2 (mm) 6 6 5.5 5 1.1 Output clear aperture (mm) 27 27 30 35 12.4 Lens Material FS FS FS FS FS Length (mm) 75 75 75 75 85 Mounting thread M30x1 M30x1 M30x1 M30x1 M22x0.75