The loss is mainly caused by the scattering and escape of light generated by the fiber during bending.When the light is transmitted in a curved fiber, part of the light will escape from the fiber due to the changing propagation speed and direction of the light in the medium, thus causing the loss of the optical signal.In addition, the propagation of light in the optical fiber is through full reflection, and at the bend, the degree of incidence angle of light may exceed the critical angle of full reflection, resulting in scattering phenomenon, which will also cause the loss of optical signal.The size of the macrobending loss is affected by many factors, including the bending radius, the type and material of the fiber, and the outer coating of the fiber. A smaller bending radius will increase the scattering and escape of light, resulting in increased macrobending loss.The special outer coating can reduce the scattering and escape of light, thus reducing the macrobending loss.

The offshore operation technology of the oil and gas industry is the key to ensure the smooth development of offshore oil and gas resources.Optical fiber and cable and oil field sensing technology play a vital role. With its high-speed and large-capacity data transmission capacity, optical fiber and cable provides a stable and reliable communication guarantee for offshore operations. Through optical fiber and cable, the operation platform can obtain the monitoring data of submarine oil and gas Wells in real time to ensure the safety and efficiency of the operation process.Oilfield sensing technology realizes real-time monitoring and early warning of oil and gas Wells through various sensors arranged on the sea floor. These sensors can sense the key parameters such as pressure, temperature and flow of the wellhead, and provide decision support for operators to work to prevent potential safety risks.With the continuous development of science and technology, the offshore operation technology is also constantly innovating and improving. In the future, optical fiber and cable and oilfield sensing technology will continue to provide strong support for the deep-sea development of the oil and gas industry, and promote the sustainable utilization of offshore oil and gas resources.

The research team at NASA's Armstrong Flight Research Center has made a breakthrough in developing a technology called a "fiber-optic sensing system."The core is to use the optical fiber as a sensing element to realize the real-time monitoring and data feedback of the structural strain, shape, temperature and other key parameters by capturing the physical characteristic changes when the optical waves are transmitted in the optical fiber. Optical fiber sensing system shows great potential in the field of aircraft research with its high sensitivity, strong anti-interference ability and excellent stability. It can accurately capture the tiny deformation and temperature fluctuations of the structure in a complex environment, providing rich and accurate data support for designers, and greatly improve the research accuracy and design efficiency. Its high-precision and long-distance sensing capabilities give it promising prospects in construction, Bridges, energy and other fields. With the continuous progress of technology, optical fiber optic sensing systems will play a key role in more fields to promote the technological innovation and development of related industries.

It is well known that the optical fiber in the general sense is composed of a fiber core, cladding layer and coating layer. Among them, the fiber core, cladding determine its optical characteristics, generally with molten quartz in the environment of 2000℃ pull down, high temperature performance naturally need not say much. In the process of quartz glass pull, its surface will inevitably leave subtle cracks, used by a kinds of environmental stress, crack may rapidly expand and even break, so in the first time to help it put on a layer of sheath —— coating layer, to greatly improve its mechanical characteristics, make it more bending more tensile. It is understood that at domestic and foreign, the application scenario of high temperature resistant optical fiber is very wide. In the exploitation of oil and natural gas, the oil well temperature measuring optical cable needs to be able to withstand the underground high temperature and high pressure environment, and then it is necessary to use the high temperature resistant optical fiber. In thermal power generation, the real-time monitoring of boiler temperature and pressure also requires the stable transmission of high-temperature resistant optical fiber. In addition, in the automotive industry, high-temperature resistant optical fibers are used in on-board communication and entertainment systems to ensure the stable transmission of information in high-temperature engine and exhaust system environments. In the field of aerospace, the high temperature resistance performance of communication equipment is extremely high. The application of high temperature resistance optical fiber can improve the reliability and stability of communication equipment in high temperature environment. Polyimide (Polyimide, PI), with an excellent temperature range of-190℃ ~ + 385℃, has penetrated into every aspect of our lives since DuPont was first commoditized in 1961. For example, the flexible circuit board (FPC), often used in electronic products, is 280℃ lead-free welding and is made of polyimide; it is also made into fabric for firefighters, astronauts, and racers. In theory, 385℃ is the upper temperature limit of the polyimide, regardless of higher temperatures. High temperature resistant metal coated fiber, by coating the surface of the bare fiber with a layer of high temperature resistant metal material, such as aluminum, copper or gold, to improve the performance of the fiber in high temperature environment. This fiber performs well at extreme temperature conditions and has excellent resistance to chemical corrosion and mechanical bending. High temperature-resistant metal-coated optical fibers are widely used in areas that need to withstand high temperature and corrosive environments. For example, metal-coated optical fibers all play an important role in nuclear radiation, high-energy and strong laser transmission, welded fiber beams, and medical applications. In addition, in the field of high temperature sensing fiber, it can be used as turbine sensing fiber, oil and gas well fiber, engine sensing fiber, etc., to withstand the work demand in high temperature environment. Metal optical fibers are also often used as gas-tight optical fibers.

Optical fiber hydrophone system is a complex sensing system, which mainly uses optical fiber sensing technology to realize the conversion, transmission and processing of underwater sound signals. As the core part of the system, the implementation process are crucial to the performance of the whole system. The components of optical fiber hydrophone mainly include wet end and dry end. The wet end, as the sensing end, consists of the optical fiber hydrophone sensor probe and the transmission optical cable used to transmit the optical signal. The sensor probe is the core component of fiber-optic hydrophones, which can receive underwater sound signals and convert them into optical signals. The dry end mainly includes the light source of optical fiber hydrophone, optical passive device, photoelectric conversion module and signal demodulation processing module. The light source is responsible for providing stable optical signals. The optical passive device is used to control the transmission and modulation of the optical signal. The photoelectric conversion module converts the received optical signal into an electrical signal, and the signal demodulation processing module demodulates and processes the electrical signals to extract useful sound information.

The core technologies of machine vision include image acquisition, image pre-processing, feature extraction, target detection and recognition, etc. First, machine vision needs to obtain the image through devices such as cameras, and then preprocess the image, including denoising, enhancement, geometric correction, etc., to eliminate the interference and noise in the image. Object detection and recognition is one of the important tasks of machine vision. By training models and using machine learning algorithms, machine vision can identify and locate target objects in the image, such as faces, vehicles, product defects, and so on. This provides very valuable applications for automated production, intelligent security and intelligent transportation. The development of machine vision technology benefits from the improvement of computer computing power, the improvement of sensor technology and the development of artificial intelligence technology such as deep learning. These advances have led to significant improvements in accuracy, real-time, and adaptability.

Industrial optical fiber endoscope is a kind of remote visual inspection equipment, with fine diameter, flexible characteristics, mostly used for some narrow curved test piece internal inspection, such as: turbine, small diameter process pipeline, aircraft fuselage, boiler pipeline maintenance, easy to use, is widely used. Understanding the imaging principles of industrial fiber optic endoscope can help to buy good products. Industrial fiber optic endoscopes often consof the objective lens, the mirror tube, the control unit, and the eyepiece. The guide beam providing lighting and the guide fiber optic beam responsible for transmission are all running through the mirror tube. The imaging core of optical fiber mirror lies in the optical fiber beam, and its imaging principle can be understood from the perspective of local single optical fiber and overall optical beam.

Bill Gates predicts that within five years, AI agents will become increasingly popular, and users will have their own dedicated AI agents. An AI agent is a system based on large-scale language models that has the ability to perceive, understand, and execute tasks autonomously. The ability of autonomous perception heavily relies on the development and application of computer vision. As every user is expected to have their own specialized AI agent in the future, this expanding market will create new opportunities for downstream industries, including the demand for optical fiber components in machine vision.

Fiber optics plays a crucial role as a transmission material in all applications involving light. Especially in the field of energy transmission, high-end energy transmission equipment relies on high-precision components. The key parameters of components, such as accuracy, cleanliness, and quality, determine the performance of the equipment. Take laser cutting machines as an example. Companies in this industry often need to focus their efforts on overcoming the challenges of laser generators, making it difficult to simultaneously develop and produce fiber optic components. Even if successful development is achieved, it is impractical to go through a validation period of 2-3 years before mass production. Apart from the high requirements of the products themselves, there are also numerous models within the same category, with significant differences in operating principles. This makes it even more critical for component suppliers to deeply cultivate their own professional fields. With the accelerated development of industries such as medical lasers, cutting laser, and laser manufacturing, fiber optic manufacturers, represented by power transmission fiber optics, will face opportunities for domestic substitution of fiber optic components. Nanjing Hecho Technology provides customized fiber optic services based on customer needs, using imported fiber optic materials. The products are flexible and meet the differentiated needs of customers in various industries, widely applied in fields such as medical, in vitro diagnostics, semiconductor, and industrial control.

Recently, utilizing the StartUs Insights Discovery platform driven by big data and artificial intelligence, an analysis of over 1,500 startups and emerging companies was conducted, leading to the in-depth research and of the top ten technological trends in the laser industry for 2024. These trends include laser 3D printing, laser communication, high-power diodes, AR laser scanning, laser radar technology, intelligent lasers, quantum laser systems, micro lasers, hybrid lasers, and laser-guided processing. (Source: StartUs) As the application of lasers continues to be developed, higher standards and demands are placed on high-power lasers. Fiber optic products that possess excellent high-temperature resistance, high flexibility, and durability are more suitable for future market development. Nanjing Hecho Technology adheres to a customer-centric approach, continuously optimizing production processes, providing customized services, meeting the demands of emerging markets, and growing together with our customers.

In the medical field, precise and bright illumination is crucial. The Medical LED halogen Light Source Module S5000M is a product specifically designed for the medical industry, providing excellent working conditions for medical personnel. This innovative product incorporates a 60W high-brightness LED chip, along with specially designed high-power LED beads and a unique spotlight system, offering a comprehensive lighting solution for medical illumination. The S5000M features high-speed triggering functionality, enabling fast and accurate illumination in complex medical applications. By combining the high-brightness LED chip with the spotlight system, it provides clear and uniform lighting, significantly enhancing illuminance and assisting doctors in accurate diagnosis and procedures. To ensure lighting quality that meets the high standards of the medical industry, the S5000M module utilizes a color rendering index (CRI) of RA 90, allowing doctors and nurses to accurately reproduce the patient's condition for precise analysis and judgment. Compared to traditional 250W metal halide lamps, the Medical LED halogen Light Source Module S5000M offers significant advantages. It not only provides comparable illumination brightness but also offers energy efficiency and environmental friendliness. Its long lifespan design reduces the frequency of lamp replacement and maintenance costs, saving valuable time and resources for medical institutions. In terms of design, the S5000M module emphasizes detail and high quality. Its sleek and modern appearance seamlessly blends into contemporary medical environments. Apart from its outstanding lighting performance, it also possesses excellent durability and reliability, ensuring long-term stable usage.

High-temperature resistant fiber faces specific challenges in various aspects when operating in high-temperature environments, commonly used in sensing, LDI, and other fields. In high-temperature conditions, conventional fibers often experience problems such as optical loss, refractive index changes, and material expansion. Here are four key challenges: Material Selection: High-temperature resistant fiber requires the use of materials with excellent high-temperature stability, such as special glasses or ceramic materials. Selecting suitable materials needs to consider factors such as chemical stability, thermal expansion coefficient, and tensile strength under high-temperature conditions. Structural Design: The structure of high-temperature resistant fiber needs to withstand the stress and deformation caused by high temperatures. Fiber design should balance strength, flexibility, and thermal stability to ensure the fiber does not fracture or lose performance in high-temperature environments. Fiber Connection and Packaging: In high-temperature environments, fiber connections and packaging must maintain stable optical transmission performance. This includes selecting fiber connectors, connection techniques, and packaging materials that can maintain good connection quality and low losses under high temperatures. Environmental Adaptability: High-temperature resistant fiber also needs to adapt to different high-temperature environmental conditions, such as industrial furnaces, high-temperature air, or high-pressure environments in aerospace applications. The high-temperature performance of the fiber requires rigorous testing and validation to ensure its stability and reliability. Hecho's self-developed high-temperature resistant fiber offers advantages such as high-temperature resistant interfaces, high power handling, high transmittance, long-term high transmittance retention, aging-resistant sheathing options, high-temperature packaging, ultra-long lifespan, and high beam collimation. These features enable reliable transmission of optical energy and signals in various specific applications under high-temperature environments.