Here we will mainly introduce the comparison between Diode-pump Laser Marking Machine and YAG Lamp-pump Laser Marking Machine.Diode Pump Laser Marking Machine and Lamp-pump Laser Marking Machine are all based on the ND: YAG (neodymium-doped yttrium aluminum garnet) crystal as a laser-produced material, which can be converted 808nm visible laser to 1064nm not visible laser light, but another more critical factor of the output laser is the laser pump source which can make the crystal rod put out laser light, the Diode-pump Laser Marking Machineuses semiconductor diode-pumped to send out 808nm light waves; and lamp-pump use krypton lamp to issue lamp pump, but light sent out from the krypton lamp has wider light spectrum, with only one slightly larger peak in the 808nm Department, the light in other wavelengths eventually turned into useless heat dissipation out. Therefore, the conversion efficiency of Diode-pumped Laser Marking Machine is much higher than the Lamp-pump Laser Marking Machine. Benefits of Diode Pump Laser Marking Machine are as follows:

First, Diode-pump Laser Marking Machine has no need to change krypton lamp.

The life span of semiconductor diode is quite long, its rated working hours is larger than ten thousand hours, while the lifetime of krypton lamp is only several hundred hours (usually about 400-600 hours), as a result, lamp pump Laser Marking Machine need to change krypton lamp at work for some time, especially for the metal marking, more energy will be needed, the lifetime of krypton will be more affected.

Therefore, Diode Pump Laser Marking Machine is also called maintenance-free Laser Marking Machine, which means no working materialconsumption, no maintenance for quite a long time. According to different production tasks of different users, the lifetime of Diode-pump Laser Marking Machine can guarantee between one and three years.

related:http://www.lasermarkingsystem.org

High power fiber optic laser marking machine and cladding pumped technology

The emergence of double coated optical fiber is undoubtedly a major breakthrough in the field of optical fiber, which has made the production of high power fiber optic laser marking machine and high power fiber optical amplifiers become a reality. Since the first description of cladding pumped fiber optic Laser Marking Machine by E Snitzer in 1988, cladding pump technology has been widely used in fields of fiber optic laser marking machine and fiber optic amplifiers, which has become the preferred way of high power fiber optic laser marking machine production.

Cladding pumping technology composed of four levels:

1) fiber optic level; 2)inner cladding, 3)outsourcing layer, 4)protection layer. Technical characteristics of cladding pump have decided the following aspects of outstanding performance of such Fiber Opticl Laser Marking Machine:

First, high output power. A multi-mode pump diode module group may radiate 100 watts of optical power, a number of multi-mode pump diode in parallel settings can be allowed to design fiber optic laser marking machine with quite high output power.

Second, no need of thermoelectric cooler. Such high power wide surface multi-mold diode of the Fiber Opticl Laser Marking Machine can work in especially high temperature, only a simple air cooling in need, and low cost.

Third, wide pump wavelength range. There are erbium and Yb rare earth elements doped in the active cladding of high power fiber optic laser marking machine, which has a wide and flat absorption area of light wave (930-970m), as a result, pump diode doesn’t need any kind of wavelength stabilization device.

Fourth, high efficiency. Pump light can across single-mode fiber optical core several times, so the fiber optic laser marking machine has very high utilization rate.

Fifth, high reliability. Comparing with single-mold pump diode, the stability of multi-mold pump diode is much higher. The geometry width has made the light power density and current coming across active face of the fiber optic laser marking machine all very low. As a result, the operating lifetime of pump diode laser marking machine can be over one million hours.

related:

http://www.lasermarkingsystem.org

The advanced fiber optic Laser Marking Machine

Fiber optic Laser Marking Machine is a Laser Marking Machine which use glass fiber optic doped with rare earth as the gain medium. Fiber Optic Laser Marking Machine is developed basing on fiber optic amplifier. It is quite easy to form high output density inside fiber optic under the action of pump light, resulting in laser energy level inversion.

Fiber optic Laser Marking Machine has very wide application including laser fiber optic communication, laser space long-distance communication, industrial shipbuilding, automobile manufacturing, laser engraving, laser marking, laser cutting, roller of printing system, drilling, cutting and welding of metal and nonmetals, military defense and security, medical devices equipment, major infrastructure projects and so on.

As the representative of the third generation laser technology, Fiber Optic Laser Marking Machine has the following advantages:The advantages miniaturization and intensification brought by the low processing cost and sophisticated technology of glass fiber optic Laser Marking Machine, and the routability of fiber optic.Glass material has a very low volume area ratio, quick thermal dissipation, low consumption, thus conversion efficiency is very high and laser threshold is low. The wavelength of output laser is long, which is because of the rich energy level and various kinds of rare-earth ions. Coordinability of Laser Marking Machine: since the energy level of rare earth ions and fluorescence spectrum of glass fiber optic are all quite wide. Because there is no optical glasses inside of the resonant cavity of fiber optic Laser Marking Machine, with the advantages of adjustment free, maintenance free and high stability, which the traditional Laser Marking Machine cannot compare with. Fiber derived can make the fiber optic Laser Marking Machine can be capable to multi-dimensional space process easily, which has made it easy for the design of mechanical system.Fiber optic Laser Marking Machine can compete with poor working environment, which has quite high level tolerance to dust, shock, humidity and temperature. There is no need of thermoelectric cooling and water cooling, but a simple air cooling during the orking of Fiber Optic Laser Marking Machine. High electro-optical efficiency of Fiber Optic Laser Marking Machine: the integrated electro-optical efficiency can reach as high as 20%, which has greatly saved the power consumption and operating cost. High output power of fiber optic Laser Marking Machine, the output power of commercial fiber optic Laser Marking Machine available is six kilowatts.

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