With the rapid development of optoelectronics technology, 850nm high-power LED has become a hot topic in the industry. As a key component in optical communication, 850nm high-power LED plays a vital role in the transmission of data. This article will introduce the background, development, and application of 850nm high-power LED, aiming to provide a comprehensive understanding of this cutting-edge technology.

Background of 850nm High-Power LED

LED (Light Emitting Diode) is a semiconductor device that emits light when an electric current passes through it. As an important part of optoelectronics, LED has been widely used in lighting, display, and communication fields. Among them, 850nm high-power LED has attracted great attention due to its excellent performance in optical communication.

Optical communication is a technology that uses light to transmit information. It has the advantages of high bandwidth, long transmission distance, and low crosstalk. In the optical communication field, 850nm wavelength is widely used because it has the following advantages:

• Low attenuation: The attenuation of 850nm light in fiber optic cables is relatively low, which reduces the loss of signals during transmission.
• High transmission speed: 850nm light has a high transmission speed, which can meet the needs of high-speed data transmission.
• Low cost: The cost of 850nm light sources is relatively low, which is conducive to the popularization of optical communication technology.

Development of 850nm High-Power LED

Since the birth of 850nm high-power LED, it has undergone rapid development. The following are the main stages of its development:

1. Early stage (1980s-1990s)

In the early stage, the technology of 850nm high-power LED was relatively backward. The conversion efficiency of the LED was low, and the lifespan was short. At this stage, the application of 850nm high-power LED was mainly in the field of optical communication, such as fiber optic communication.

2. Mid-stage (2000s)

In the mid-stage, with the continuous optimization of the technology, the conversion efficiency and lifespan of 850nm high-power LED were significantly improved. The application field of 850nm high-power LED was also expanded to the field of optical storage, such as CD, DVD, and Blu-ray.

3. Late stage (2010s-2020s)

In the late stage, the technology of 850nm high-power LED has reached a mature stage. The conversion efficiency and lifespan of the LED have been greatly improved, and the cost has been reduced. At this stage, the application field of 850nm high-power LED has been further expanded, such as in the field of optical communication, optical storage, and optical sensors.

Application of 850nm High-Power LED

850nm high-power LED has a wide range of applications due to its excellent performance. The following are the main application fields:

1. Optical communication

In the field of optical communication, 850nm high-power LED is mainly used as a light source for optical transceivers. It can realize high-speed, long-distance, and low-cost data transmission, which is of great significance for the development of optical communication technology.

2. Optical storage

In the field of optical storage, 850nm high-power LED is mainly used as a light source for CD, DVD, and Blu-ray. It can achieve high-speed data reading and writing, which is conducive to the development of optical storage technology.

3. Optical sensors

In the field of optical sensors, 850nm high-power LED is mainly used as a light source for photoelectric conversion. It can achieve high sensitivity and high accuracy in the detection of various physical quantities, which is of great significance for the development of optical sensor technology.

Conclusion

As an important part of optoelectronics, 850nm high-power LED has been widely used in various fields due to its excellent performance. With the continuous optimization of technology and the expansion of application fields, the development prospects of 850nm high-power LED are very promising. In the future, 850nm high-power LED will play a more important role in the development of optoelectronics technology.