RUIK, founded in 2013, is one factory of optical passive devices, integrating R&D, manufacturing, sales, after-slaes service, with operating space of 2500 square meters. RUIK designs advanced and cost-effective passive components through our ISO 9001-2015 certified facility. RUIK's products have been sold well to domestic and overseas markets, including polarization maintaining fiber components, high power laser isolator, multi-mode pump combiner and fused products.