RUIK founded in Shenzhen in 2013, is a professional manufacturer of Optical Passive Components designed mainly for various industries which include Fiber Laser, Fiber Sensing, CATV, Telecommunication, Medical Systems, Gyroscope, etc. Our main products include High Power Components & Polarization Maintaining (PM) Fiber Components ranging from 470nm to 2050nm. We also provide customized components to our customers. Polarization Maintaining Fiber Components; High Power Fiber Components; Pump Combiner / Fused Coupler & WDM. Fiber Patchcord / Pigtail;