Shanghai Optic Integrated Optics Co., Ltd. recently released a PLC splitter chip for multimode optical fiber with large channel capacity, fast speed and short transmission distance (below 1000 meters) for data exchange centers, military applications, optical fiber sensing, etc. , Successfully filled the gap in the industry.
It is understood that in popular FTTX networks, long-range low-loss single-mode fiber splitters are commonly used. But in fact, in data exchange centers, military applications, optical fiber sensing and other channels with large channel speeds and short transmission distances (below 1000 meters), multi-mode fiber is often used for signal transmission, and there is also a large number of signal branching requirements. Shanghai Optical Core has developed a multimode optical splitter chip using ion exchange technology, successfully filling the gap in the industry.
Shanghai Optical Core said that it can produce 1 * 2 chips with different split ratios such as 50/50, 20/80, 10/90, etc. according to application requirements. Compared with the melting cone, the PLC-type multimode shunt device has the advantages of wavelength insensitivity (can meet the wavelengths of 850nm and 1310nm at the same time), wide operating temperature range (-40- + 85), and no mode selectivity. In the case of large shunt ratio (1 * 4, 1 * 8), it has the advantage of small size.
In the coupling process of the multimode splitter, the outer diameters of the multimode fiber and the single mode fiber are the same. Fiber Array only needs to replace the single mode fiber with OM1 or OM3 multimode fiber.
In addition, Shanghai Optic can also customize the splitter chip to match the plastic optical fiber according to customer needs. Plastic optical fiber has specific application value in some occasions due to its low cost and excellent bending resistance. However, the core diameter of the plastic optical fiber is above 80 microns, and the 3dB coupler cannot be made by melting the taper. Therefore, the photoelectric-electro-optical switch is currently used for signal branching. Using passive multimode splitter chips can save a lot of cost and power consumption.
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