Multicube™ components ensure highly rugged and warp-resistant setups, especially for single-mode (PM) fiber coupling. The optics shown here can be built easily into multicube™ systems. You can find different beam splitters (polarization beam splitters, splitter plates or cubes, dichroic beam splitters), retardation optics (low and zero order, dichroic, half and quarter-wave plates), polarizers, photo detectors and Faraday isolators to protect the laser source from back-reflection.