NakuLaser Blog

 385nm semiconductor lasers are based on the photoelectric effect of semiconductor materials. They use electrical excitation to make electrons in semiconductors transition and release light energy, thereby generating lasers. Its working material is semiconductor material, which has the advantages of small size, light weight, high efficiency, and long life. By optimizing the design of the resonant cavity, the 385nm 180mw laser can provide a near-Gaussian distributed beam with concentrated energy and high beam quality. In the field of scientific research, 385nm semiconductor lasers can be used for experiments such as spectral analysis, laser holography, and cell sorting, providing precise light source support for researchers. This is a 385nm 180mW semiconductor laser. There are three working modes of CW/TTL/Analog on the back of the power supply to choose from. Rotate the 'Adjustor' knob on the power supply to adjust the current and thus the laser output power. This is the free...

In the vast field of laser technology, the 780nm laser has become an important tool in many fields such as scientific research, industry and medicine with its unique performance characteristics and broad application prospects. This article will explore the technical characteristics, working principle and application of this laser in various fields. 780nm is a commonly used wavelength in semiconductor lasers . It is located in the near-infrared region and has high penetration and low scattering rate. Although the power of 80mW is not large, it is sufficient for many precision applications, such as optical sensing, biomedical imaging, etc. What is explained in the video is a 780nm 80mW semiconductor laser. It supports a wide AC voltage range of 90~240V. Its beam quality is excellent. The spot mode is TEM00, and the spot is perfectly circular. The laser power can be adjusted from 0~80mW, and it supports two working modes of CW/Modulation. TEM00 mode is an ideal state of laser beam, indica...

With the rapid development of science and technology, semiconductor lasers have been widely used in various fields due to their advantages such as high efficiency, small size and long life. Among them, the 395nm semiconductor laser has brought new possibilities for many applications with its unique wavelength and output power. The video shows a 395nm 300mW experimental laser from CivilLaser.  It has three working modes of CW/TTL/Analog that can be switched. When the working mode is TTL/Analog, an external signal needs to be connected. The characteristics of this UV semiconductor laser are that the output power is continuously adjustable, easy to operate, reliable in performance, and long in laser life. 395nm is a near-ultraviolet laser, and only a faint blue-violet light spot can be observed. In addition, this laser can also be customized with fiber-coupled output . With the continuous development of science and technology, 395nm 300mW semiconductor lasers have broad development p...

 It's a 638nm 15W semiconductor laser system .15W laser is high power, we have equipped a radiator in the laser head. The radiator at the bottom of the laser head has 3 cooling fans, which can effectively extend the continuous working time of the high-power laser. The CW/TTL/Analog on the back of the power supply has 3 switchable working modes. CW is continuous working mode. In TTL/Analog modulation mode, 1~30KHz, 0~5V signal should be connected to the 'Mod Input' BNC interface. There is a small power interface on the side of the data cable close to the laser head for the cooling fan. In addition, the Lock crystal head cannot be pulled out. External signal Mod Input, no need to connect in CW working mode. Let's check it now. Thi is a power adjustable laser by adjusting the current. To adjust the working current, turn the 'Adjustor' knob clockwise, when the current exceeds the minimum working current, the Laser indicator turns green, and there is laser output at...

 This is 940nm 20W IR Laser Source . The laser head has a heat dissipation base, which can effectively extend the continuous working time of the laser. The radiator has two cooling fans. The back of the laser head and the power supply, the 3 working modes of the laser, CW/TTL/Analog are set from the back of the power supply. The 940nm laser is an infrared laser invisible to the naked eye, and a faint red light can be seen in the camera. But the energy is very strong. We shine a laser on the cardboard and it catches fire immediately. 20W is very high power laser , you need to wear IR laser protective glasses when operating, and do not use the laser to irradiate human eyes at any time. In addition, the red STOP button is used for emergency stop, and it is not needed under normal circumstances.

 This is 690nm 800mW red laser source . 690nm laser is red semiconductor laser system, among the red laser, 690nm belongs to the longer wavelength laser. The laser power is adjustable from 0 to 800mW. Turn on the laser, rotate the button to adjust the laser power to the max. Let's check it now. The laser's test data report.    

 Acousto-optic Modulator for High-power Pulsed Fiber Laser Abstract : The present invention relates to an a cousto-optic modulator for high-power pulsed fiber lasers , including an input pigtail, a collimating lens, an acousto-optic device, a focusing lens, and an output pigtail. The input pigtail is placed at 3.7° with the horizontal plane, and the output tail The fiber and the horizontal plane are placed at 0° or 3.7°, the input pigtail and collimating lens are installed together to form an input fiber collimator, and the output pigtail and focusing lens are installed together to form an output fiber collimator, and then the input, The output fiber collimator and the acousto-optic device are assembled as a whole; a narrowband filter can be placed between the acousto-optic device and the output fiber collimator, and the input fiber collimator and output fiber collimator can be combined into one Fiber collimator, add a narrow band high reflector. The invention effectively improves...

It's a 488nm TEM00 blue laser system. This laser is coupled a single mode fiber . The LCD display the current, and the outpower power can be adjusted by adjusting the current. Let's check it now. 488nm single-mode fiber-coupled laser uses single-mode fiber coupling, which has the advantages of high coupling efficiency and good output laser beam quality. The TEC temperature control system is used to ensure that the laser is more stable and has better performance. Compact structure, strong and reliable, suitable for various industrial and scientific research applications.        

 It's a 785nm semiconductor laser , it's support CW and modulation, the output power is tunable. The laser output power can be adjusted by turning the silver button. The working voltage is 90~240V, which is suitable for most countries and regions in the world. 785nm laser is near invisible laser. The laser light is weak, but the energy is strong. And the packaging of the products has been fully shockproof. Let's check it now.  

 It's a blue-violet laser system . The laser power can be adjusted through the rotary button on the power supply. Its working voltage is 90~240V. This semiconductor laser is near TEM00 mode. The laser beam quality is very good and the stability is high. It is a commonly used laser light source in scientific research. Let's check it now.

This is a 515nm 10W green laser system. It has three working mode can be choosen: CW, TTL and Analog modulation. During installation, if the laser needs to work continuously for a long time, connect the fan power of the radiator. Adjust the laser power by the button. Let's check it now.

It's a 785nm 2W fiber coupled laser system.The laser head coupled a 1000μm optical fiber. The Adjustor button on power supply is used to adjust the laser output power. Let's check it now.

808nm 45W Laser System CW and Modulation Laser Source -- CivilLaser It's a Infrared laser system, the laser wavelength is 808nm, and the laser power is 45W. It's a high power laser source. Let's check it now.

405nm 1000mw semiconductor laser with power supply Default type(fixed focal length) VS Custom type(add focus adjustable lens)

It's a 450nm high power laser system, the max output power is 50000mW . Heat sink can be added to laser head. And the output power can be adjusted by adjusting the current. This laser has three working mode: CW/TTL/Analog modulation. Let's check it now.

Abstract: The author briefly describes the main characteristics of laser processing, and also comprehensively introduces the specific application of laser drilling, laser cutting, laser welding and surface pre-heat treatment, the formation of lasers, and the rapid application of laser rapid prototypes in material processing. Based on these, the author has a reasonable outlook on the future development of laser technology in China. As one of the most practical, innovative and great inventions of the twentieth century, the invention and emergence of laser technology have produced huge changes in people's lives and work. It was nominated alongside electronic computers (Internet technology), aerospace technology, semiconductor technology , and thermonuclear technology for major scientific and technological achievements of this century. Human beings obtained the first laser for the first time in May 1960. It has now been nearly sixty years, and laser technology has penetrated into ...

After decades of development, laser technology has long moved from the laboratory to people's daily lives. Whether it is clothing, food, housing, or industrial processing, and then to medical cosmetology, laser light is everywhere, affecting all aspects of people's lives. From the development status of a country's laser industry , the overall industrial manufacturing level can be seen to a certain extent. In 2019, the growth rate of the laser industry has further slowed down. Although some companies have maintained high growth, more companies are facing declines in performance or even losses. Next, based on the performance of this year (revenue scale and market share), select 10 companies that have the most influence on the laser industry and see how they are doing in 2019. 1. TRUMPF Group Founded in 1923, the TRUMPF Group is one of the global market and technology leaders in the field of industrial production machine tools and lasers. After more than 90 years of dev...

High-power lasers usually generate large amounts of heat, which can easily damage the laser tube for a long time. It is not recommended to use high-power lasers for a long time. Sometimes, the user needs to make the high-power laser work continuously for a long time. Is there any way? Figure 1. Without heat sink, can not work continuously for a long time We have summarized some experiences in actual work to share with you. 1. Select Laser Ask the merchant if the laser is with TEC when buying. TEC (Thermoelectric Cooler) is a semiconductor refrigeration chip, which is widely used in temperature control in various equipment. Figure 2. Heat sink and fan Laser working at high temperatures will cause damage to the laser tube, so it is also necessary to bring an overheating protection module. When the temperature rises to the limit of the laser tube, the laser must automatically stop working. 2. Do a good job of heat dissipation As long as the heat dissipation is done, t...