These reflective collimators are based on a 90° off-axis parabolic mirror, which has a focal length that remains constant over a broad wavelength range. They are available with a UV-enhanced aluminum coating for high reflectivity in the 250 nm to 450 nm wavelength range, a protected silver coating for high reflectivity in the 450 nm to 20 µm wavelength range, or an unprotected gold coating for high reflectivity in the 800 nm to 20 µm wavelength range. Compact reflective collimators with a protective silver coating are available for easy integration into cage systems. Protected silver-coated, adjustable-focus reflective collimators allow fine-tuning of the fiber-to-mirror distance. All reflective collimator options are available with FC/PC, FC/APC, or SMA connectors.
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