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Optical passive devices are an important part of optical fiber communications equipment and are indispensable components for other optical fiber applications. With high return loss, low insertion loss, high reliability, stability, mechanical wear resistance and corrosion resistance, easy to operate, etc., are widely used in long-distance communication, regional networks and fiber to the home, video transmission, optical fiber sense Test and so on.
The general term for optical functional devices that do not contain light energy. Optical passive devices consume energy in the optical path, and insertion loss is the main performance index. Optical passive components include optical fiber connectors, optical switches, optical attenuators, fiber couplers, wavelength division multiplexers, optical modulators, optical filters, optical isolator, and optical circulators. They realize the functions of connection, energy attenuation, reverse isolation, splitting or combining, signal modulation, and filtering in the optical path.
The variety of optical passive devices:
▲ FC, SC, ST, LC, MTP and other types of adapters, attenuators
▲ There are three types of connector plugs: PC, UPC, and APC (the UPC and PC are basically the same, but there is a small difference in the technical value)
▲ FC, SC, ST, LC and other types and specifications of pigtails (including ribbons and bundles) and jumpers, ranging from single core to 12 cores.