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High Power Diode Laser Systems

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Diode lasers gets superior advantages of small size, light weight, high efficiency etc. It has got high attention from the very beginning of its creation, which is widely used in a large variety work fields of industry, military, medical, communication etc. However, due to their limited quantum well waveguide structure, the output power laser beam quality is much weaker than solid-state lasers, CO2 lasers, thus in a certain period, the development of diode laser system is seriously limited.

In current time, with the epitaxial growth semiconductor material, diode laser waveguide structure optimization, the cavity surface passivation techniquies, packaging technology, and high efficiency cooling technology, diode lasers are available with even higher output power, and better laser beam quality. High tech blue laser diode application is providing good laser source for high quality and high performance diode laser systems, and high power fiber pumping light source.

In various high tech work fields, diode lasers are always being used as integration base unit. Diode laser units available with different structure and different types directly contributed to the development of diode laser systems. For the most important of all, laser tech engineer has made great innovation and improvement of reduced laser beam fan angle of output power laser beam, and constant increasing output power. Within a wide selection of output power and available laser wavelengths, diode lasers are fulfilling all kinds of laser source requirements in high tech work fields efficiently.

Development situation of diode laser systems

Available with constant improvement of laser beam quality, and reduced laser beam fan angle of diode laser systems, laser tech engineer has made great innovation of fiber laser systems with single wavelength, reduces size of fiber coupled diode laser module and a pigtail diameter increasing the power of the fiber. According to exact requirement of different users, diode laser systems can be designed precisely, customized design is acceptable as well. Formal diode lasers are selecting air cooling system and AC driving to get high stability laser sources efficiently.

With advances in compound semiconductor technology, industrial applied high power diode laser system will get great developments on its high output power and better laser beam quality, thus making greater expansion of its industrial application work fields. In high-power fiber laser pumping source aspect, fiber coupled laser system power increases constantly, fiber core diameter and a numerical aperture continue to decrease, resulting in constant improvement of laser light brightness of fiber lasers.

Although users can get even higher power and reduced dimension diode lasers, however, its production cost is becoming lower. In current industrial laser processing work fields, diode laser system is always getting wide applications in metal laser processing. High power diode lasers are used in laser surface treatment, laser cladding and near field of laser welding, and higher requirement of high power fiber laser beam quality workable laser cutting and laser welding fields.

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