With the rapid development of photoelectric technology, laser diode has become an important core device in industry, scientific research, medical treatment and consumer electronics. Among many product types, infrared laser diode has attracted wide attention because of its strong concealment, high penetration and wide application scenarios. So where are the infrared laser diodes mainly used? What kind of quality advantages does the low-power infrared laser diode produced by QSI in Korea have in the market? This article will give you a comprehensive interpretation.

I. Main application fields of infrared laser diodes

The wavelengths of infrared laser diodes are mainly concentrated in the ranges of 780nm, 808nm, 830nm, 850nm and 905nm. Different wavelengths can be applied to ranging, communication, medical treatment and sensing, etc., and the following are analyzed one by one:

1. Laser ranging and sensing

Application scenarios: hand-held rangefinder, LiDAR, UAV mapping, autopilot sensor.

Advantages: Infrared laser diode has small volume and high luminous efficiency, and can provide accurate distance and position data in complex environment. Especially in 905nm band, it is the mainstream choice of vehicle-borne lidar at present.

2. Industrial automation and positioning

Application scenarios: auto production line positioning detection, workpiece alignment, robot navigation.

Advantages: infrared laser invisible light beam will not interfere with the work of operators, and at the same time, it can carry out non-contact detection on high-speed assembly line, improving efficiency.

3. Security and monitoring

Application scenarios: infrared night vision camera, access control system, face recognition fill light.

Advantages: The infrared laser diode can provide a stable light source in the dark environment, and cooperate with the image sensor to realize clear monitoring, and it is insensitive to human eyes and will not cause light pollution.

4. Medical care and beauty

Application scenarios: near infrared spectrum detection, blood oxygen concentration monitoring, skin physiotherapy, hair removal instrument.

Advantages: infrared laser has strong wavelength penetration, can act on subcutaneous tissue, and is suitable for medical diagnosis and treatment equipment.

5. Optical communication and information transmission

Application scenario: optical fiber communication, infrared data transmission module.

Advantages: The laser signal in infrared band has small attenuation and high transmission efficiency, which is an important support of modern communication.

Second, the quality characteristics of low power QSI laser diode

In many scenes where infrared laser diodes are used, low-power laser diodes occupy a large proportion. As an internationally renowned semiconductor laser manufacturer, South Korea QSI's low-power laser diode is recognized by the market for its stable performance and excellent quality. Mainly reflected in the following aspects:

1. Stable optical performance

QSI low-power infrared laser diode is stable in power output and beam quality, uniform in spot and good in directivity. This is especially important for sensors and ranging equipment that need to work continuously for a long time, which can effectively reduce the deviation and improve the measurement accuracy.

2. High product consistency

Thanks to QSI's perfect epitaxial wafer growth and chip technology, the consistency between batches is excellent. In mass production or application, the debugging difficulty caused by parameter differences can be greatly reduced and the product yield can be improved.

3. Low power consumption and high reliability

The current consumption of low-power laser diode itself is low. QSI further optimizes the heat dissipation and energy efficiency in the packaging process, so that the device can still keep stable light emission under the condition of low power consumption, which is suitable for portable and mobile equipment.

4. Long service life

QSI laser diode has undergone strict aging test and quality inspection, and its service life can reach thousands to tens of thousands of hours under normal working conditions. This means that in industrial or scientific research scenarios, equipment maintenance costs are significantly reduced.

5. Diversified packaging forms

QSI provides TO package, SMD package, modular package and other forms, and customers can choose flexibly according to application requirements. For example, TO-18 and TO-46 packages are suitable for scientific research and industrial equipment, and SMD is suitable for miniaturized consumer electronic products.

Third, why choose QSI and Longxingda Technology?

At present, Longxingda Technology Co., Ltd. is the general agent of Korean QSI in China. By purchasing QSI laser diodes through official channels, customers can not only get the original quality guarantee, but also enjoy all-round services such as technical support, selection guidance and after-sales guarantee provided by Longxingda. For R&D enterprises and industrial users, reliable supply chain and technical services are particularly critical.

Infrared laser diode, with its efficient, stable and concealed light source characteristics, has penetrated into many fields such as ranging sensing, security monitoring, medical diagnosis, industrial automation and so on. In this market segment, South Korea's QSI low-power infrared laser diode has become the first choice for many enterprises because of its high stability, good consistency and long life. Through the official channel of Longxingda Technology, customers can rest assured to purchase and ensure the smooth development of the project.