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Where can I find a qsi laser diode in Korea? The difference between pulsed laser diode and continuous laser diode {LongstarTechnology}
   18.9.2025    Source:http://www.longstartech.com.cn/

We all know that Korean QSI laser diodes are widely used in the market, so do you know where Korean QSI laser diodes are available? For many people outside the industry, I don't know the difference between pulsed laser diodes and continuous laser diodes. Let's take a look.


1. Where can I find the QSI laser diode in Korea?


As the world's leading laser diode manufacturer, QSI products have been widely used in optical communication, laser ranging, lidar, industrial inspection, medical diagnosis and other fields. For domestic customers, the most concern is undoubtedly how to obtain the QSI laser diode with genuine channels.


At present, there are QSI authorized agents in China District, which can provide customers with genuine laser diode products and provide supporting technical support and after-sales service. The advantages of purchasing through official agency channels are as follows:


1. Authentic guarantee: avoid second-hand goods and disassembled goods that may appear in informal channels in the market.


2. Technical support: not only selling devices, but also providing solutions such as driving circuit and optical system design.


3. Quick response: domestic spot inventory support, short delivery cycle, reducing the waiting time for research and development.


4. Customized service: According to customer's demand, the agent can communicate with QSI original factory to provide customized laser modules or devices.


Longxingda Technology, as the general agent of Korean QSI China, has been deeply involved in the laser diode market for more than 20 years, and has gained numerous praises in the market by virtue of its product stability.


Second, the difference between pulse laser diode and continuous laser diode


Laser diode can be divided into pulse laser diode and continuous laser diode according to different working modes. There are significant differences between them in driving mode, output characteristics and application scenarios.


1. Different driving modes


Pulsed laser diode: driven by high current pulse for a short time, it produces high peak power in a very short time. The pulse width can range from nanosecond to microsecond.


Continuous laser diode: driven by constant current to keep the laser output stable.


2. Different output characteristics


Pulse LD: the peak power is high, but the average power is low; The output light is pulsed.


Continuous LD: the output power is relatively stable, suitable for long-term continuous operation.


3. Difference between power and heat dissipation


Pulse LD: Due to the extremely short working time, the device can withstand much higher current than continuous operation during a single pulse, thus achieving higher instantaneous power and relatively lower heat dissipation pressure.


Continuous LD: Good heat dissipation design is required, otherwise the life of the device may be affected by long-term heating.


4. Different application fields


Pulsed laser diode: it is often used in laser rangefinder, laser radar, optical detection, medical imaging and other scenes that need high peak power and instantaneous response.


Continuous laser diode: it is often used in optical fiber communication, laser indication, industrial processing, bar code recognition, medical treatment and other fields that need stable and continuous light source.


Advantages of QSI in the field of pulsed and CW laser diodes


South Korea QSI's product line covers two categories: pulsed laser diode and continuous laser diode, and its advantages are reflected in the following aspects:


1. Wide wavelength coverage: from visible light, red light, green light and blue light to near infrared band, there are mature products.


2. High reliability: strict aging screening process ensures long-term stable operation of the device in complex environment.


3. Customization ability: QSI can customize power, wavelength and packaging form according to customer's needs, whether in pulse or continuous mode.


4. Modularization support: QSI devices can be easily integrated into laser modules to meet the different needs of scientific research, industry and consumer electronics.


Whether it is a pulsed laser diode or a continuous laser diode, their advantages and application scenarios are very clear. In the actual selection, enterprises and scientific research institutions need to decide according to the application requirements, combined with power, stability and working mode. South Korea's QSI laser diode, with its excellent quality and complete product series, can provide customers with all-round solutions.


If you are looking for a reliable laser diode supplier, choosing to purchase through Longxingda Technology will be your most assured choice in R&D and production.


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