5 Essential Elements For EYE SAFE LASER CRYSTAL
5 Essential Elements For EYE SAFE LASER CRYSTAL
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In summary, we attained a 1485 nm eye-safe intra-cavity diamond cascaded Raman laser with substantial peak electrical power and narrow linewidth. Benefitting from using composite crystal and in-band pumping and the good method matching provided by the V-formed folded cavity, the system accomplished an average output electric power of 2.
In length measurement, As an illustration, the high optical attain of Yb:Er:glass permits the creation of intense laser beams that could journey lengthy distances devoid of important attenuation.
Although eye-safe lasers have substantially improved the safety profile of laser technologies, it is necessary to recollect that they are not fully danger-totally free.
A non-critically section matched KTA optical parametric oscillator intracavity pumped by an actively Q-switched Nd:GYSGG laser with dual sign wavelengths
Tm:YAG crystals, on the other hand, have found a cushty home in high-power purposes, such as remote sensing and LIDAR techniques. Their remarkable energy handling abilities established them aside, even from the confront in their decreased acquire parameters.
We report over a substantial average energy and large repetition price nanosecond pulsed eye-safe KGW Raman laser intracavity driven by an acousto-optic Q-switched 1342 nm two-crystal Nd:YVO4 laser. Taking benefits of the cautiously chosen two-composite-laser-crystal configuration, the carefully optimized gate-open time of acousto-optic modulator as well as the ingeniously intended U-formed resonator, substantial electricity and performance enhancements together with remarkable mode matching are already enabled.
The two crystals have their special strengths. The choice concerning The 2 depends upon the precise software necessities.
Standard routine maintenance and calibration are very important to make certain the laser continues to operate throughout the eye-safe region.
The one.five µm wavelength region is particularly interesting since it coincides Along with the bare minimum water absorption in Organic tissue. This attribute helps make Yb:Er:glass a perfect option for biomedical applications, the place it’s essential to decrease probable tissue destruction.
Figure two(b) reveals the fundamental laser beam radius on each the Nd:YVO4 and also the diamond underneath unique thermal lens focal lengths. In the situation of the thermal lens which has a focal length as little as 170 mm, the cavity is able to maintain a nicely-matched romance among the pump and the fundamental laser.
Here, we proposed a V-formed folded cavity to attain efficient Procedure of an eye-safe intra-cavity diamond cascaded Raman laser. Around the a person hand, the thermal impact of your laser crystal was mitigated a result of the utilization of composite crystal and in-band pumping, and on the other hand, the method matching and cavity security are promoted with the V-shaped folded cavity. Due to this fact, a median output electric power of two.2 W which has a diode to 2nd-Stokes conversion effectiveness of eight.1% has been effectively received. The heart beat width of the second-Stokes laser was dramatically minimized from sixty ns of the elemental laser to one.one ns because of the Raman pulse compression, which triggered a peak electrical power of as many as forty kW.
These crystals permit scientists to acquire correct knowledge in regards to the h2o vapor profile from the ambiance, which can be important for temperature prediction and climate scientific studies.
We current an stop-pumped continuous-wave intra-cavity yellow Raman laser at 590 nm which has a sixty mm lengthy pure crystal SrWO4 and an intra-cavity LiB3O5 frequency doubling crystal. The best output electric power…
Certainly one of the significant characteristics of Yb:Er:glass is its high optical attain. In essence, Which means that a small input of Vitality may result in a major output of laser light-weight.
Eye Safe Laser Crystal Module The problems threshold for human eye is high any time a laser by using a wavelength better than EYE SAFE LASER CRYSTAL one.4 um, since when it truly is irradiated to your human eye, almost all of its gentle depth is absorbed via the vitreous body, so It isn't quick to break the retina at a particular ability.( Having the one.57um laser as an example, based on the US countrywide safety criteria, its safe publicity to human eye is four hundred thousand occasions that with the one.06um Nd:YAG laser at the moment utilised.