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Photonics Spectra
May 2008
Elk Industries, R-K ManufacturingRequest Info
ElkIndustries.jpgElk Industries LLC has released its blue laser combination crystal, which produces single-longitudinal-mode radiation at 473 nm. Without requiring difficult or time-consuming alignment and mounting, it allows the user to convert 808-nm laser diode output at only 1 to 2 W of power directly into 473-nm laser light by focusing the output onto the entrance face of the blue laser core. A highly collimated blue laser beam exits from the opposite side of the device. TEM00 beam diameter is <0.5 mm, beam divergence is <3 mrad, and average beam pointing stability is <30 μrad. Operating temperature is from –10 to 70 °C, and shock tolerance is >15 g.


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A solid with a structure that exhibits a basically symmetrical and geometrical arrangement. A crystal may already possess this structure, or it may acquire it through mechanical means. More than 50 chemical substances are important to the optical industry in crystal form. Large single crystals often are used because of their transparency in different spectral regions. However, as some single crystals are very brittle and liable to split under strain, attempts have been made to grind them very...
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