APC Series connector delivers IP67 fast-mating circular power and signal with UV/UL materials, compact Mini and high-power variants, and easy service. Built on a durable. Thorlabs' mating sleeves are compatible with industry-standard connectors such as FC/PC, FC/APC, SMA, ST, LC, and SC. Our mating adapters use a butt joint-style connection and are available as inline units, mounted in an L-bracket for compatibility with standard optomechanical setups, or built into. APC Connector is a type of fiber connector that minimizes backreflection due to a 5° to 15° angle-polish applied to end faces. Like illustrated in the following picture. Because of the angle, the reflected light does not stay in the fiber core but instead leaks out into the cladding. Two connectors of type FC PC (0°-polish) or of type FC APC (8°-polish) can be connected.
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