LongSpectrum Co. Ltd. was founded by Overseas Chinese Specialists of Material Enginnering and Optical Engineering in May 2016. LongSpectrum focuses on fiber sensors, laser products and technologies, such as Sapphire fiber, IR fiber, Sapphire tube, Sapphire thermocouple, Sapphire sensor, Single crystal, Laser head, Laser crystal, Substrate, Balck Body, Laser guide, Infrared fibers, etc. 

LongSpectrum's Intellectual Property
      
        Optical end - face interference measurement software                                     Sapphire thermocouple patent