What are the characteristics of optical fiber?
The characteristics of optical fiber include high bandwidth, low loss, immunity to electromagnetic interference, high security, small size and light weight. Detailed introduction: 1. Optical fiber has a very high signal transmission bandwidth and can transmit optical signals of multiple frequencies at the same time, so it can achieve high-speed data transmission; 2. The transmission loss of optical fiber is very low and can theoretically transmit hundreds of kilometers or even further. distance without loss of signal quality; 3. Optical fiber transmits optical signals and is not interfered by electromagnetic waves; 4. Optical fiber transmission signals do not produce electromagnetic radiation, nor are they eavesdropped by external electromagnetic waves, etc.
# Operating system for this tutorial: Windows 10 system, Dell G3 computer.
Optical fiber is a communication line used to transmit optical signals. Its characteristics mainly include the following aspects:
High bandwidth: Optical fiber has very high signal transmission Bandwidth, multiple frequency optical signals can be transmitted simultaneously, so high-speed data transmission can be achieved. Compared with traditional copper cables, optical fiber has a larger bandwidth and can meet higher data transmission needs.
Low loss: The transmission loss of optical fiber is very low and can theoretically transmit hundreds of kilometers or even longer without losing signal quality. In contrast, the transmission distance of copper cables is limited by factors such as resistance and electromagnetic interference, and the transmission loss is large.
Free from electromagnetic interference: Optical fiber transmits optical signals and is not subject to interference by electromagnetic waves. However, traditional copper cables are prone to interference from electromagnetic waves because signals are transmitted through current, which reduces signal quality. Therefore, optical fiber is superior in anti-interference performance.
High security: Optical fiber transmission signals will not produce electromagnetic radiation and will not be eavesdropped by external electromagnetic waves. In contrast, traditional copper cables produce electromagnetic radiation during transmission and are easily eavesdropped. Therefore, in some scenarios that require higher data security, optical fiber is more suitable.
Small size and light weight: Due to the use of optical signal transmission, optical fiber is smaller and lighter than traditional copper cables, making it easier to deploy and maintain. Especially in large-scale communication networks, the size and weight advantages of optical fiber are more obvious.
In general, optical fiber has the characteristics of high bandwidth, low loss, immunity to electromagnetic interference, high security, small size and light weight. These characteristics make optical fiber widely used in the field of modern communications and become the main communication line. In the fields of Internet, telecommunications, radio and television, etc., the application of optical fiber has become a mainstream trend, and with the continuous development of technology, the performance of optical fiber will continue to improve, providing better solutions for people's communication needs.
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According to news on April 9, YOFC Optical Fiber and Cable Co., Ltd. (hereinafter referred to as "YOFC") recently acquired the German and Suzhou companies of Radio Frequency Systems GmbH (hereinafter referred to as "RFS") and held a delivery ceremony. As a provider of optical fiber preforms, optical fibers, optical cables and comprehensive solutions, YOFC mainly produces and sells various standard specifications of optical fiber preforms, optical fibers and optical cables widely used in the communications industry, as well as various types of optical modules and special optical modules based on customer needs. Optical fibers, active optical cables, submarine cables, as well as radio frequency coaxial cables, accessories and other products. In recent years, we have vigorously expanded markets such as rail transit, base station cables and devices, and power cables. According to reports, the RFS German and Suzhou companies acquired in this transaction are engaged in activities including radio frequency cables.

Differences: 1. Fiber-to-the-home means that broadband operators directly connect fiber optic cables to users' homes, while network cable-to-home connects a commonly used Category 5 network cable to users' homes. 2. Optical fiber to the home requires the use of a special optical modem provided by the operator to receive optical signals and then output the network signal through the optical modem; while the network cable to the home can be directly plugged into the computer's network card to access the Internet, or it can be connected to the switch through a network cable and router to access the Internet. 3. The bandwidth of optical fiber is exclusive. For example, 100M optical fiber broadband, then it is 100M; while the network cable to the home shares one optical fiber for the entire unit.

Gigabit fiber download speed is 1000Mbps, or 125MB/s. In actual use, due to the influence of control signals, network loss, line attenuation and other factors, the real download speed will be lower than the theoretical value. The actual download speed is about 110-117MB/s, which is about 880-936Mbps. If you use a wireless connection to measure the speed, the download speed will be affected by factors such as equipment, distance, channel, etc., and generally can only reach about 20-30% of the theoretical speed. Therefore, the normal range of gigabit broadband download speed is 20-125MB/s.

According to news on July 3, at the Huawei Africa Fully Connected Conference 2024, Chen Banghua, President of Huawei’s Optical Product Line, introduced the three major trends in the optical industry in the intelligent era: “Optical Advances and Copper Retreats”, “Optical Advances and Electrical Retreats” and “Light Advances and Human Retreats”. ". Among them, in the field of "optical advancement and copper exit", Chen Banghua said that home broadband networks need to be fully fiber-optic and extend the ultimate broadband experience to every room through FTTR to achieve a ubiquitous Gigabit or even 10 Gigabit ultimate bandwidth experience. "Light advances and copper retreats" is also moving from families to parks. In the era of 10 Gigabit campus, Wi-Fi7 is indispensable. Wi-Fi7 rate support from 3Gbps to 1

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The characteristics of optical fiber are: 1. Long transmission distance, the optical fiber connection distance can reach 70 kilometers; 2. Fast transmission speed, optical fiber access can provide high-speed bandwidth such as 100Mbps, 200Mbps; 3. Low loss, the manufacturing purity of the optical fiber medium is extremely high, Therefore, the loss of optical fiber is extremely low, which can reduce the number of relay stations in communication lines and improve communication quality; 4. Strong anti-interference ability. Optical fiber is a non-metallic dielectric material. It uses optical fiber as a conductive medium and is not subject to electromagnetic interference.

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Optical fiber interfaces include: 1. FC interface. The shell is made of metal and has threads at the interface. It can be fixed well when connected to the optical module. 2. ST interface. The material is made of metal and the interface is snap-on. It is often used for fiber optic wiring. rack; 3. SC interface, made of plastic, push-pull connection, the interface can be stuck on the optical module, often used in switches; 4. LC interface, made of plastic, used to connect SFP optical modules, the interface can be stuck on the optical module ; 5. PC interface, microsphere surface grinding and polishing; 6. APC interface, 8 degree angle and microsphere surface grinding and polishing.