NakuLaser Blog

The Raman Fiber Amplifier (RFA) is operated by the third-order nonlinear effect of the strong laser in the fiber-stimulated Raman Scattering (SRS). If a weak signal light is transmitted in a fiber at the same time as a strong pump light, and the wavelength of the weak signal light is within the Raman gain bandwidth of the pump light, the energy of the strong pump light is coupled to the fiber silicon material through the SRS. The oscillating mode is then emitted at a longer wavelength, which is the wavelength of the signal light, thereby amplifying the weak signal light to obtain a Raman gain . Classification of Raman fiber amplifiers RFA is divided into two main categories: discrete (or centralized) RFA and distributed RFA. They have their own characteristics and are suitable for different application areas. The amplification medium used by discrete RFAs is typically a dispersion compensating fiber (DCF) or a highly nonlinear fiber. The gain fiber used is relatively short, ty

6W Laser at  455nm  with 0.5 NA Fiber Fiber: 400μm / SMA905 / 0.5 NA / 2m Our  fiber coupled laser  can be customized: the fiber core diameter, fiber length and interface type is customizable. 455nm 6W fiber coupled laser:  https://www.civillaser.com/index.php?main_page=product_info&products_id=710

Romanian scientists have developed a record-breaking 10 megawatt laser, which is equivalent to one-tenth of the energy produced by the sun on Earth. In addition to letting someone or something evaporate, it is mainly used for research purposes. Scientists from three countries will use this super-light laser to study photonuclear properties, cancer medicine, radiation research, and more. In 2014, the Extremetech website once described a 1 megawatt laser as the "Star of Death", and the laser developed today is ten times stronger. The laser was developed by the European Commission through an “ultra-light infrastructure” (ELI) project with an investment of 850 million euros. The project includes facilities in Romania, Hungary and the Czech Republic. The Romanian laboratory used it to study photonuclear physics. The Hungarian facility experimented with attosecond (1x10-18 seconds) laser pulses. The   group of the Czech   Republic studied short-pulse secondary sources and partic

1.  L aser working medium The laser  must be produced by selecting a suitable working medium, which can be a normal body, a liquid, a solid or a semiconductor. In this medium, particle number inversion can be achieved to produce the necessary conditions for obtaining a laser. Obviously, the existence of the metastable energy level is very advantageous for realizing the population reversal. There are nearly a thousand working media available, and the laser wavelengths that can be generated include the far infrared from the vacuum ultraviolet ray, which is very extensive.  As the core of the laser, it consists of activated particles (both metal) and matrix. The energy level structure of the activated particles determines the laser characteristics such as the spectral characteristics and fluorescence lifetime of the laser. The matrix mainly determines the physical and chemical properties of the working substance. According to the energy level structure of the activated particles, it

This laser is from OEM laser manufacturer   CivilLaser , it’s a blue semiconductor laser system, wavelength is   465nm , the max output power is 9000mW. It has three working mode: CW, TTL/analog modulation. Let’s check itnow.

Lasers are widely used in household appliances, medicine, industry, telecommunications and other fields. A few years ago, scientists introduced Nano Russell. Their design is similar to conventional semiconductor lasers based on heterostructures that have been commonly used for decades. The difference is that the cavity of the nano-lacquer is very small, which is determined by the wavelength of the light emitted by the root. Since they mainly produce visible light and infrared light, they are about one millionth of a meter in size. Nanomaterials have unique properties that are significantly different from macroscopic lasers. However, it is almost impossible to determine at what current the output radiation of the nanolaser becomes coherent. In addition, in practical applications, it is important to distinguish between two states of the nanolaser: true laser action with high current coherent output and low The LED-like state of the current incoherent output. Researchers from the Moscow

Indium gallium nitride (InGaN) laser diodes can directly produce laser diodes that emit blue light, but it is difficult to produce laser diodes that emit green light directly, especially those that are considered to be truly green: early green laser diodes Usually has a slight cyan projection. As a commercial pioneer of green InGaN laser diodes, OSRAM Opto Semiconductors has been promoting the development of long-wavelength laser diodes. A laser based on InGaN-based direct-emitting green light has been introduced, with wavelengths from 510 to 530 nm, which can be used for micro-projection. And other red, green, blue (RGB) or green laser applications. (Osram also produces blue laser diodes.) The new lasers are available in TO38 ICut or TO56 packages (with a flange diameter of only 3.8 mm) with integrated photodiodes, typically with a parallel divergence angle of 7°and a vertical divergence angle of 22°, small enough to pass The relatively simple optics are cyclized and collimate