NakuLaser Blog

The output wavelength of a  fiber laser is determined by the gain medium, that is, what kind of doped fiber is selected. The two most common wavelengths are 1064 nm and 1550 nm, respectively.   A typical Er3+ fiber laser is tunable at 14 nm at 1536 and 1550nm.  Taking an Nd3+-doped quartz fiber laser as an example, an AlGaAs (aluminum gallium arsenide)  semiconductor laser with a wavelength of 808 nm is used as a pump source, and the laser emission wavelength of the fiber laser is 1064 nm.  Fiber Laser refers to a laser using a rare earth-doped glass fiber as a gain medium. Fiber lasers can be developed on the basis of fiber amplifiers . Under the action of pump light, high power density is easily formed in the fiber, resulting in laser The laser energy level of the working substance "particle number inversion" can form a laser oscillation output when a positive feedback loop (constituting a resonant cavity) is appropriately added.

Laser positioner — How to choose the laser output power? Dot laser, line laser, crosshair laser , etc. Laser modules are widely used as positioners in industrial production. Many customers don’t know how to choose the power of the laser. The power is too small for the operator to see the laser; The power is too high, the laser is too dazzling, affecting normal work. So how do you choose the laser power at different distances? CivilLaser  take the red light as an example and sort out a table for your reference. Laser module — The relationship between the power,brightness and working disance. OUTPUT POWER BRIGHTNESS LEVEL BEST WORKING DISTANCE DESCRIPTION <5mw Micro Light < 0.5 meter 1. In less than 0.5 meters. 2. Under the weak light environment. You can see the laser beam. <10mw Low Light < 1 meter 1. In less than 1 meters. 2. Under the weak light environment. You can see the laser beam. <100mw Middle Light < 3 meters 1. In less tha...