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Fibconet Optoelectronics Fiber Optic PLC Splitter

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1. Optical active devices 1) Photodetector Common photodetectors include: PN photodiodes, PIN photodiodes, and avalanche photodiodes (APDs). The current optical detector can basically meet the requirements of optical fiber transmission. In the actual optical receiver, the signal from the optical fiber is extremely weak, sometimes only about 1mW. In order to get a larger signal current, people want the sensitivity as high as possible. Fiber Optic PLC Splitter Fiber Optic PLC Splitter
When the photodetector works, it is impossible for the electrical signal to not be delayed at all, but it must be limited within a range, otherwise the photodetector will not work. With the continuous improvement of the transmission rate of the optical fiber communication system, the ultra-high-speed transmission has higher and higher requirements on the response speed of the photodetector, which puts forward higher requirements on its manufacturing technology. Fiber Optic PLC Splitter Fiber Optic PLC Splitter
Because the photodetector works under extremely weak signal conditions, and it is at the forefront of the optical receiver, if the noise introduced in the photoelectric conversion process is too large, the signal-to-noise ratio will be reduced, affecting the reproduction of the original signal of. Therefore, the noise requirement of the photodetector is small. In addition, it is required that the main performance of the detector is not affected or less affected by changes in external temperature and environment as much as possible. Fiber Optic PLC Splitter Fiber Optic PLC Splitter
2) Optical amplifier The appearance of the optical amplifier allows us to save the indispensable optical-electrical-optical conversion process in the traditional long-distance optical fiber transmission system, making the circuit simpler and more reliable. With the development of fiber technology, fiber Raman amplifiers have appeared. In the late 1980s, rare-earth element-doped fiber amplifiers came to the fore and quickly reached a practical level, used in long-distance optical communication systems across the ocean. At present, the optical amplifiers that can be used for optical fiber communication are mainly semiconductor laser amplifiers and rare earth-doped fiber amplifiers, especially erbium-doped fiber amplifiers (EDFA) are very popular. Fiber Optic PLC Splitter Fiber Optic PLC Splitter
3) Optical passive devices Optical passive devices are an important part of optical fiber communication systems. Optical passive devices are particularly important in today’s development of optical fiber communication to large-capacity and high-speed. This year, new materials, new processes and new products are constantly emerging, and optical passive devices are facing a period of rapid development. Fiber Optic PLC Splitter Fiber Optic PLC Splitter
Fiber Optic Connector Optical fiber (cable) active connector is an optical passive device that realizes active connection between optical fibers. It also has the function of connecting optical fibers with other passive devices, optical fibers and active devices, and optical fibers with systems and instruments. On the basis of further improving the performance of the optical fiber active connector, it develops in the direction of miniaturization and integration. Fiber Optic PLC Splitter Fiber Optic PLC Splitter
Further improve the performance indicators of optical fiber active connectors.The current insertion loss ranges from 0.1dB to 0.5dB, with an average value of 0.3dB, which is relatively high and has a large variation range. With the improvement of machining accuracy, strive to reduce the average value to below 0.1dB and the variation range to about 0.2dB. Changing the geometry of the pin end face is an effective way to improve return loss. It can be expected that the pins with flat end faces will be gradually eliminated, the pins with spherical and oblique spherical surfaces will exist at the same time, and the demand for spherical pins will still dominate. In addition, the use of new processing technologies such as coating technology to improve return loss can reduce the processing accuracy requirements of parts, and can improve the consistency and interchangeability of the two connectors. Fiber Optic PLC Splitter Fiber Optic PLC Splitter

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