We all know that high-power laser diodes are not cheap, and for the cutting industry, high-power laser diodes are indispensable. So, what is the price of this type of laser diode? What are the advantages of laser diodes compared to LEDs?

1064 nm butterfly shaped semiconductor laser tube module (with driver, FC/APC fiber interface):

The model with a maximum output of 9 W CW is approximately ¥ 4600 CNY

Higher power versions, such as 25 W output, cost approximately ¥ 10400 CNY

Top 100 W multimode laser tube module (including air cooling and driver) approximately ¥ 23200 CNY

In addition, the 1310 nm single-mode laser diode can achieve a power of 650 mW in pulse mode. Although the price is not specified, it belongs to the category of high-power laser diodes and is also commonly used in professional applications

The price of high-power semiconductor lasers ranges from several thousand yuan to tens of thousands of yuan, depending on the output power, module complexity, and driving configuration.

2、 Core advantages of laser diode (LD) compared to LED

Laser diodes and LEDs are both semiconductor light sources, but they have significant differences in principle and performance, and their applicable scenarios are also different. The following is a summary of the main advantages:

1. Coherence and high orientation

Laser diodes emit coherent light, which has monochromaticity, directionality, and strong collimation. After focusing, the energy density is extremely high.

LEDs emit incoherent light with a large divergence angle and poor monochromaticity, making it difficult to focus or transmit over long distances

2. Output power and energy density

Laser diodes can achieve extremely high input power density and output efficiency, with energy output much higher than LEDs (up to 100-1000 times that of blue LEDs) in the same volume

The power output of LED is generally lower, making it more suitable for general lighting and display.

3. High efficiency and conversion efficiency

Laser diodes have high photoelectric conversion efficiency, and material structure optimization (such as multiple quantum wells) can increase efficiency to 20-40% or higher

Although LEDs are more efficient than incandescent bulbs, their overall conversion efficiency is usually lower than that of laser diodes.

4. Application specificity

Laser diodes are highly suitable for applications that require high beam quality, long-distance transmission, or high energy density, such as fiber optic communication, laser printing, distance measurement, material processing, medical cutting, etc

LED is more widely used in daily lighting, indication, screen display, decoration and other scenarios that do not require high beam quality.

5. Differences in Principles and Technical Foundations

Laser diodes are based on stimulated radiation mechanism and use optical resonant cavities to generate coherent laser output; Mirror like double heterostructures typically composed of high refractive index materials

LEDs mainly rely on spontaneous emission and have a simple structure, but their light output is incoherent and has strong scattering properties, making it difficult to focus energy

The above is the price of high-power laser diodes. If you have any needs, please contact us