The safety lock of green laser pointer can ensure the safety and security of the customer
Its appearance makes fiber-optic communications become a reality and to develop rapidly, making the CD-ROM, information storage and optical copying technology constantly upgrading. As its output power, coherence constantly emerging new materials and new structure, the application of the semiconductor laser is no longer confined to the field of information, it is also an exhibition of materials processing, precision measurement, grand, showing huge potential, are occupying some of the market occupied by the gas and solid-state lasers in the past. As a coherent optical pump source will enable the solid-state lasers, semiconductor lasers revolutionary change, a new vitality. Some unique advantages of the semiconductor laser so well suited for military applications. And
The safety of customer of green laser pointer can be ensured to the largest extent
The core of the semiconductor laser is a PN junction diode, the diode and the diode in the general electronics features. Once the PN junction breakdown, they can not produce non-equilibrium carriers and radiative recombination. Exceed the damage threshold of optical power can make a partial or full damage of the cleavage plane will lead to the decline of the laser output power or become light-emitting diodes, or even failure. According to statistics, the semiconductor laser is a sudden failure, more than half of the probability is due to the surge breakdown. The surge is a sudden transient electrical pulse, the semiconductor laser transient withstand voltage of the PN junction breakdown, the optical power forward over-current generated by the transient voltage cleavage surface damage.
If the customer wants to use green laser pointer
Factors affecting the output power of semiconductor lasers. Figure 2-3 shows a typical low-power semiconductor laser at different temperatures of the laser output power P and the forward drive current curve. Easy to see at the bottom of the figure approximate straight-line part of the intention to raise some. LD temperature - drive current - optical power characteristic curve. Operating current of the output power. It can be seen from Figure 2-3: a certain temperature, when the drive current is less than the threshold current Ith, the laser output optical power P is approximately zero, the laser output can only see the faint dark red; and when the drive current is greater than the threshold current Ith, the laser output optical power P approximation was linear with the increase of drive current rise.
articles from:
http://www.re-port.tv/greenlasersight/the-prices-of-pen-like-torches-to-make-green-laser-pointer-range-from-twenty-yuan-to-several-hundred-yuan/
http://greenlasersight.richmantactics.com/pen-like-single-bulb-torches-can-be-transformed-into-green-laser-pointer/
http://greenlasersight.noahblog.com/wp-admin/post.php?post=6&action=edit&message=4
http://greenlasersight.blogsara.com/having-a-cool-portable-green-laser-pointer-is-a-dream-of-children/
http://greenlasersight.mommysbestfriends.com/you-will-be-able-to-create-your-own-green-laser-pointer/