NakuLaser Blog

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...

The use of ultrashort pulse synchronous pumping of Raman fiber lasers is another way to achieve wavelength-sensitive Raman pulsed lasers. In the Raman fiber laser, the Raman scattering response speed in the fiber is extremely fast, and the time domain characteristic of the pump pulse can be effectively transmitted to the Raman pulse, and the Raman can be realized without the saturable absorber. Ultra short pulse output. In pulse pumping, the gain is only provided during the period of the pump pulse width, so no spontaneous Raman light and continuous light components are generated in the cavity, and the Raman pulse can be guaranteed as the equivalent saturable absorber. Purity. At the same time, the Raman gain is proportional to the pumping power and does not saturate, so that ultrashort pulse pumping can use its extremely high peak power to provide a higher Raman gain per unit length of fiber, thus effectively overcoming the lock. The shortcoming of the required gain fiber in the mode...

2019 Current Status and Application Prospects of Super Ultrashort Lasers Ultra-short and ultra-strong lasers can be divided into nanoseconds, picoseconds, and femtosecond lasers according to the length of the pulse. Nanosecond lasers , such as the NIF laser in the United States, the LMJ in France and the Shenguang IV in China, are the most expensive, and the energy is in the order of megajoules. Mainly used in radiation fluid mechanics, laser fusion center ignition related physics and laboratory astrophysics, such lasers are expensive to manufacture. It can only be built in some national laboratories. Picosecond lasers , for example, have been built in Japan with LFEX, as well as lasers with parameters close to the power of the tile, China’s Shenguang II upgrade, British Vulcan, and US OMEGA-EP. The cost is relatively expensive. Its energy is in the order of kilojoules, and its power reaches the level of wattage. It is mainly used for fast ignition, physics in large-scale n...

2018 Global Ultrafast Laser Market Overview According to data from the  CivilLaser  Research Center, global industrial laser revenue increased from $2.34 billion in 2012 to $4.88 billion in 2017. The market growth rate in the past three years was 10.6%, 24.2% and 28.6% respectively. Among them, ultrafast pulse lasers account for about 24%. It is expected that the global ultrafast pulse laser market is expected to exceed US$1.5 billion by 2020.

Femtosecond lasers are capable of processing any solid material with high quality and high precision using their ultrafast and ultra-intense characteristics. With the continuous development of laser technology, ultrafast laser manufacturing could become one of the primary methods employed in high-end manufacturing in the future. Recently, researchers have realized a new method of electron dynamics control for ultrafast laser micro/nano fabrication. For the first time, the localized transient electron dynamics can be actively controlled to manipulate material properties, which greatly enhances the efficiency, quality, uniformity and precision of laser fabrication. This research was conducted by the group of Professor Lan Jiang from Beijing Institute of Technology, in cooperation with Professor Tian-Hong Cui from the University of Minnesota, and Professor Yongfeng Lu from the University of Nebraska–Lincoln. Their research results were recently reviewed in Light: Science and Appli...

The starting signal is given and two electrons speed off in opposite directions. The one that wins the race is barely seven attoseconds (7 x 10exp-18 seconds) ahead. The difference is so small that up till now it has been impossible to measure. Yet, that difference is caused by chirality, a hallmark of molecules that emit electrons. An international research team (INRS/CNRS/CEA/UPMC/University of Bordeaux/Weizmann Institute) made this precise measurement by directing an ultrafast laser beam at camphor molecules. Theoretical equations predicted the result, but as one of the authors of the research article published in Science explains, no one has been able to prove it before. You can get a good idea of what chirality is by putting a right-handed glove on your left hand: two identical shapes that cannot be superimposed because they are mirror images of each other. This property is common in our universe, from the smallest particles to huge galaxies. Although the physical charact...

Source: http://www.laserfair.com/news/201709/18/65475.html Ultra fast laser applies to diamond, sapphire, glass, semiconductor, metal, polymer and other materials precision fine machining.   Origin Let the time back to the 1980-1990 era, then all optical scientists in the laboratory of painstaking design, adjustment of ultrafast laser transmission, focusing, try to irradiation on a variety of materials, in order to find the moment of arrival (they actually found a large number of unusual phenomena), they don't think twenty or thirty after years of ultrafast laser processing workshop has quietly entered the consumer electronics factory, entered the hospital to carry out precise eye surgery, a key ring into the sophisticated components manufacturing. Today, many people around the world are beginning to rely on ultra fast lasers because they can do many jobs that conventional methods do not. Application Ultrafast laser called ultrashort pulse laser, its mai...