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Lightglass Optics is where you can find the largest selection of Newport, Line Tool Company, OptoSigma, Thorlabs and other manufacturers of fine optomechanical equipment. By selling pre-owned equipment, Lightglass Optics can fill your Optical Research equipment needs at a substantial discount- saving those precious budget dollars. In addition, we have more Alignment Telescopes on our shelves than anybody else..anywhere!- currently over 100 - made by Keuffel and Esser (K&E), Brunson, Cubic Precision, Davidson Optronics, Engis, Taylor-Hobson and others. We also have supporting Optical Tooling to go with them. Just click on any line item to go to the page for that item.
Newport 925B Compensated Attenuator
Newport 925B Compensated Attenuator

Newport 925B Compensated Attenuator

Your Price: $957.00
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In Stock
The Newport 925B Compensated Attenuator is used for fine control of the beam intensity of a laser passing through it. This is done by moving two matched wedge-shaped filters in opposing direction. These filters are made of BK-7 and are coated with a linear-variable aluminum neutral density coating and a broadband anti-reflection coating. These filters are matched for minimum beam deflection. The optimum wavelength is 440nm to 690nm, but can go up to 1550 nm if some loss of maximum transmission is acceptable. Damage Threshold is 75W/cm squared CW, 10Mj/cm squared wotj 10nsec pulses. Not recommended for high-energy pulsed laser use.

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