Fiber optic coupling units are intended for the coupling of IR-fiber optical cables with SMA or FC/PC termination to MCT/ InSb detector installed inside LN-cooled Dewar with side window. The simplest lens coupler is a standard or customized construction fixed on the side window of LN-cooled Dewar.
Advanced version of the coupler is based on pre-aligned parabolic mirrors to eliminate chromatic aberrations and includes purging option to avoid atmospheric disturbance in spectral details of the object. Both simple- and advanced couplers are adjustable in 3 dimensions: X-Y for the mirror and Z – translation of the Dewar. See our Chalcogenide Fiber cables and Polycrystalline Fiber cables for different spectral range detectors and radiation sources.
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