With the rapid development of technology, infrared applications have become increasingly diverse. Among them, 850 nm infrared technology has attracted wide attention due to its excellent performance and wide range of applications. This article will introduce the industry of 850 nm infrared technology, including its principles, applications, and future development trends.

Principles of 850 nm Infrared Technology

850 nm infrared technology is a kind of short-wavelength infrared technology. The wavelength of 850 nm is between 780 nm and 810 nm, which belongs to the near-infrared region. This technology utilizes the optical properties of infrared light to achieve various functions. The working principle of 850 nm infrared technology mainly includes the following aspects:

1. Emission: By using infrared emitting diodes (LEDs), infrared light with a wavelength of 850 nm can be emitted. The infrared emitting diode is a semiconductor device that converts electrical energy into light energy. The emitted infrared light has good coherence and directionality, which is beneficial for its application in optical communication and imaging.

2. Detection: The detection of 850 nm infrared technology is mainly based on the photoelectric effect. When the infrared light is incident on the photoelectric sensor, it can generate a photoelectric signal. The photoelectric signal is then processed and converted into digital signals for output. This technology has high sensitivity and can detect infrared light in a wide range of wavelengths.

Applications of 850 nm Infrared Technology

850 nm infrared technology has been widely used in various fields due to its excellent performance. The following are some typical applications of 850 nm infrared technology:

1. Optical Communication: 850 nm infrared technology is widely used in optical communication systems, such as fiber optic communication, free-space optical communication, and underwater optical communication. The 850 nm wavelength has good transmission characteristics in fiber optic cables, which can effectively improve the transmission rate and reduce the crosstalk between channels.

2. Imaging and Detection: 850 nm infrared technology is used in imaging and detection fields, such as thermal imaging, night vision, and security monitoring. The 850 nm infrared light can pass through certain materials and be absorbed by the human body, so it is suitable for detecting human targets in the dark environment.

3. Automotive Industry: 850 nm infrared technology is applied in the automotive industry, such as driver assistance systems, vehicle monitoring systems, and automotive night vision systems. The 850 nm infrared light can detect obstacles and pedestrians in low-light conditions, which can effectively improve driving safety.

4. Medical Field: 850 nm infrared technology is used in medical fields, such as non-invasive measurement of vital signs, photoacoustic imaging, and cancer detection. The 850 nm infrared light can penetrate the human body to a certain depth, and the absorbed light can be used to obtain tissue information for medical diagnosis and treatment.

Future Development Trends of 850 nm Infrared Technology

With the continuous advancement of technology, 850 nm infrared technology will have more extensive applications in the future. The following are some of the future development trends of 850 nm infrared technology:

1. High-Speed and High-Density Optical Communication: As the demand for data transmission in the information age continues to increase, the development of high-speed and high-density optical communication systems is an important direction for 850 nm infrared technology. By optimizing the design of infrared emitting and receiving devices, the transmission rate and channel density of optical communication systems can be further improved.

2. Miniaturization and Integration: In the field of optical communication, the miniaturization and integration of 850 nm infrared technology are important trends. By integrating infrared emitting and receiving devices on a single chip, the system size can be greatly reduced, which is conducive to the application of optical communication systems in various fields.

3. New Materials and Devices: The development of new materials and devices is a key factor in promoting the development of 850 nm infrared technology. In the future, researchers will continue to explore new materials with high infrared emission and absorption properties, and develop high-performance infrared emitting and receiving devices.

4. Cross-disciplinary Integration: The integration of 850 nm infrared technology with other fields, such as artificial intelligence, Internet of Things, and biomedicine, will promote the development of new applications and industries. This will bring more opportunities for the development of 850 nm infrared technology in the future.

In conclusion, 850 nm infrared technology has excellent performance and wide application prospects. With the continuous advancement of technology, it will play a more significant role in various fields, and bring more benefits to human society.