Request InfoOptical Surfaces Ltd.KENLEY, England, Dec. 7, 2011 — Working with high-stability materials such as glass, Zerodur and silica, Optical Surfaces Ltd. supplies high-precision reference flats. Reference flats are a proven method of measuring the surface accuracy or the transmitted wavefront of flat surfaces or optics. Benefiting from a thermally stable manufacturing environment, the company achieves a surface accuracy of λ/20 peak-to-valley and surface roughness of <1 nm on reference flats up to 600 mm in diameter. The reference flats are used in high-precision applications in astronomy, laser beam steering, inspecting gauge...See full productRelated content from Photonics MediaPRODUCTSPhotonics.com 10/2/2023C- & L-band Optical Network TestersThe WaveMaker™ 4000A, WaveShaper® 1000B, and WaveShaper® 4000B from Coherent are instruments made to test optical networks. 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