the laser crystal rods the size was relatively large

We add the new design to our products of green laser pointer with star cap
Strictly speaking, belong to a kind of end-pumped. Modern high-power fiber laser pump source is a high-power multimode diode around through a double-clad single-mode fiber heart. In the 1970s, a

single-mode fiber lasers to replace the idea was first proposed multi-mode solid-state lasers or broadband semiconductor laser diode emission output. Simple double-clad fiber structure in an axial

single-mode glass fiber heart laced with laser ion one would expect, such as rubidium, bait, Peter, thulium. Core fiber layer diameter several times that of non-doped glass cladding surrounded,

with a lower refractive index. The name of this kind of green laser pointer is super bright green laser pointer with key lock.This type of laser technology as foreign, such as the United States

Coherent, Spectra Physics, Germany antics take, possession the Belarus Solar and other large companies, so can be considered: the level of development of high peak power laser frequency conversion

technology, is directly related or restrict the level of domestic development of laser technology, and influence the development of laser applications in industry, in national economic development

is of strategic significance. Because the laser pulse peak power and pulse energy is proportional to and inversely proportional to the pulse width, so in order to get a higher peak power, or to

achieve higher energy output, or shorten the pulse width. Insight into this type of laser technology features and to achieve a further breakthrough of great significance. The wavelength of the

laser light of green laser pointer contains 405nm and 445nm which emit blue violet laser beam.
Energy of the high beam quality laser the VRMs non-unstable resonator cavity design to achieve high energy beam quality laser output, conventional stable cavity design is obviously far from being

able to meet the requirements. At this point, the laser crystal rods the size was relatively large, the cavity design of the traditional stability, it is difficult to achieve the fundamental mode

radius is larger than 1mm of stable output; traditional unstable resonator, can increase the volume of the fundamental mode , and yet there are hard-edge diffraction and near-field ripple [4], with

variable reflectivity output mirror (VRM) [5], combined with the repetition rate requirements, the choice of appropriate magnification can generally achieve high beam quality laser output . VRM

unstable resonator optical path shown in Figure 1. The wavelength of green laser pointer contains 589nm which emits yellow laser beam.This kind of 5 in 1 green laser pointer equips with 5 different

caps