Fiber optic sensors (FOS) are the “technical upstart” in recent years because of its high sensitivity and precision, anti-electromagnetic interference, high dielectric strength, corrosion resistance, compatibility with digital communication systems, etc., and have been widely used in power grids systems, road monitoring, rail transit, food safety and other fields.

Fiber Optic Sensors

Adhering to the trend of the times, the 8th China (Beijing) International Optical Fiber Sensing Technology and Application Conference and Exhibition organized by China Optical Engineering Society Optical Fiber Sensing Technology Expert Committee, China Optical Fiber Sensing Technology and Industrial Innovation Alliance will be held at the Beijing National Convention Center from August 5th to 7th, 2019.

 Technology upstart fiber optic sensor

Optical fiber sensing technology is a new sensing technology. Optical Doppler, acousto-optic, electro-optic, magneto-optical, and bounce effects can directly or indirectly change the amplitude, phase, polarization, and wavelength of light waves through the effects of light reflection, refraction, and absorption. Therefore, the optical fiber can be used as a sensitive component to detect various physical quantities.

China has become the world’s largest consumer of optical fiber sensors, and has made certain breakthroughs in the localization process. It is understood that universities and research institutes such as Nanjing University and Shenzhen Zhongke Sensing have basically mastered a complete set of fiber optic sensor solutions. On the core components of the fiber-optic sensing system, Xiamen Peg’s narrow-band light source and Shiweitong’s lithium niobate waveguide are representative of related devices, and they are not eager to achieve independent research and development.

Throughout the entire industry market, the independent research and development of China’s fiber optic sensors is still a “short board”, and the overall marketization level is still behind foreign countries. According to statistics, the development rate of new sensor products in China is behind the United States and Japan for nearly 10 years, and the level of industrialization is 10-15 years behind. In the future, the industrialization pattern of China’s optical fiber sensing market needs to be improved, and the bundling of Internet of Things technology will push China’s optical fiber sensing market to a new round of development.


The Internet of Things has become an important promoter of the localization of fiber optic sensors.  The development of the Internet of Things must rely on a large number of sensors to obtain various environmental parameters, so as to provide more reliable data information for the Internet of Things, and then through the system processing, get the results people need. It can be seen that fiber optic technology has a broad application prospect in the Internet of Things.

It is the keen to capture the industry trend of fiber optic sensor technology in the above-mentioned fields. The 8th China (Beijing) International Fiber Optic Sensing Technology and Application Conference and Exhibition is dedicated to the comprehensive expansion of fiber optic sensor technology applications, focusing on smart grid, mine safety, rail transit, marine and environmental, geological and water conservancy and other application industries, showing the corresponding innovative integrated solutions for domestic giant enterprises.

(Image from the network)

Fiber optic sensors play a major role in the smart grid arena. The optical transmission technology is used to monitor the transmission line safety. Through the real-time monitoring of the disturbance of the touch cable, the joint box and the optical core on the transmission line, the information is collected and analyzed to determine the location, type and intensity of the disturbance to help line maintenance personnel to discover the destruction behavior of transmission lines in time. It effectively solves the early warning and monitoring of line damage, and provide alarm, intelligent analysis and auxiliary decision support for power system.

Fiber optic sensors are also in the field of road safety. Along with the development of industry and transportation, the increase of bridge span and the complex structure of the structure have caused more attention to its safety hazards. Embedding a fiber optic sensing system into a cement structure creates the ability to sense stress and fracture damage. At the same time, the tension sensor is used to feel the local deformation of the tunnel, which is easy to be collapsed. This information can be combined with the Internet to achieve long-term stable real-time monitoring of these infrastructures and reduce accidents.

The role of fiber optic sensors in the field of rail transit is not to be underestimated. Take China’s self-developed high-speed train representative, Harmony 380AL, as an example. The number of sensors in a train is more than 1,000, and one out of every 40 components is a sensor. They are responsible for status monitoring, fault alarms, and in-vehicle device control. Ding Rongjun, an academician of the Chinese Academy of Engineering and general manager of CZ Zhuzhou, once laid bare the truth that how important fiber-optic sensor was. It collects information on the running status of trains, high-speed comprehensive inspection trains, rail flaw detection, remote monitoring of orbital status, and integrated indoor and outdoor environmental sensing. All aspects have played an indispensable role.

 Industry leader

The 8th China (Beijing) International Optical Fiber Sensing Technology and Application Conference and Exhibition has entered the countdown. You are invited to meet in Beijing National Convention Center in August to experience this dazzling technology!

The conference will invite Liao Yanjun, a professor at Tsinghua University, Professor Zhang Weixu from Beijing University of Aeronautics and Astronautics, Bao Xiaoyi, an academician of the Royal Canadian Academy of Sciences, and an excellent research team in the field of optical fiber sensing in China to help out. The conference covered the application of optical fiber sensing systems in rail transit, marine and environmental applications, mine safety, smart grid, geological and hydraulic engineering.

Aspect 2: Ingenuity and mastery

The 11th Optoelectronics China Expo will be held at the same time. The conference will also present laser intelligent manufacturing, global universities, research institutes, key laboratory innovations, infrared low-light technology and applications, intelligent information, optical manufacturing, precision optics. The six theme exhibitions of photoelectric detection attracted many leading enterprises and scientific research institutions from optical components to end-user applications.

Aspect 3: Accurate new business opportunities make customers enjoy high-end customized VIP services

The 11th Optoelectronics·China Expo will provide new products, new information, new directions, new business opportunities and VIP-oriented services for the executives and professional buyers of the optoelectronic industry, enhancing the buyer’s experience and allowing buyers to enjoy one-stop procurement service including high-end customization with midstream and downstream products.