More and more customer would like to buy green laser pointer

Such as ranging, blindness, communication, guidance, the effective strength of the photoelectric confrontation. It is because of semiconductor lasers from the ultraviolet to within an extremely broad range of near-infrared wavelength of the laser output, with easy maintenance, easy operation, high reliability, so it is suitable for applications in biological and medical aspects. An overview of the semiconductor laser power system. Semiconductor lasers rely on the injection of non-equilibrium charge carriers (electron and hole) radiative recombination, and emit a photon in the form of the compound produced by the energy emitting laser. High power semiconductor laser DPSSL in the application, or as a direct light source applications, the non-equilibrium carriers are injected by the drive power.  green laser pointer and blue laser pointer were not much.
And low-power semiconductor lasers, high power semiconductor laser drive power the greater the stability of the current job requirements is very stable and reliable. The drive power has become a core technology for high power semiconductor laser applications in various fields. High-power semiconductor lasers work under the following three types: DC drive continuous work. Pulse state, with a low duty cycle pulse work. Pulse state with a high duty cycle pulse work, also known as the subject of continuous (QCW) work. In China, the development of high-power laser diode driver focused on the first two consecutive working methods of the work and the low duty cycle pulse.  green laser pointer and blue laser pointer are becoming more and more popular in the market.
The former due to the continuous laser power limit, the current is generally no more than 50A, the latter mainly in the areas of laser communications. Semiconductor laser power system requirements. The semiconductor laser is injected directly into the work rely on carrier injection current stability of the laser output has a direct, significant impact. Therefore, the semiconductor laser requires power supply is a constant current source, should have a high current stability (at least) and a small ripple coefficient should be less than or laser work status will be affected. The other semiconductor laser as a junction devices, electric shock for the capacity of poor (especially the high-power lasers). Of course, the good enough appearance of  green laser pointer can attract more customers.
High-power semiconductor lasers operating current up to more than dozens of security, in fact, the output of the stabilized power supply in addition to the set voltage by the output voltage, load voltage, ambient temperature and noise voltage, so only to the extent possible, eliminate the above factors, in order to improve the stability of the output current. The semiconductor laser has a long service life under normal conditions, however, the semiconductor laser is also very "Johnson" improper work or storage conditions, can cause a sharp deterioration in the performance and even failure. The sudden failure of the semiconductor laser can be suffered by the cleavage plane of the PN junction breakdown or used as a resonant cavity surface damage caused, according to the breakdown or extent of the damage the performance of the output power is reduced or no output. It is the specific and special size and appearance of    green laser pointer .