Tianjin Junlaser Technology Co., Ltd., founded by senior professionals in the laser industry, engaged in optical passive device sales and technical services. Products are widely used in optical communications, fiber sensors and fiber lasers and other fields. Junlaser sales of optical passive devices include high power devices, partial devices, optical isolator, optical circulator, pump combiner or splitter and filter wave division multiplexing and coarse wavelength division multiplexer, den