Detailed Notes on EYE SAFE LASER CRYSTAL
Detailed Notes on EYE SAFE LASER CRYSTAL
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The fight of eye-safe laser crystals, Yb:Er:glass and Tm:YAG, is just not a lot a fight as It's a complementary marriage. Both of those crystals give distinctive benefits, as well as their variety is determined by the specified software.
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The performance and effectiveness of any laser program are mainly dictated by its gain parameters. Both equally Yb:Er:glass and Tm:YAG exhibit distinct properties With this component, Just about every leveraging its unique attributes to stick out during the wide spectrum of laser crystals.
For environmental checking, the emission wavelength of Yb:Er:glass comes into Enjoy. As this wavelength coincides Using the lower-absorption window in the environment, it allows the transmission of laser beams more than lengthy distances without the need of substantial absorption by atmospheric constituents. This residence is invaluable in purposes for example air top quality checking and atmospheric scientific studies.
The performance and efficiency of any laser program are largely dictated by its get parameters. Both equally Yb:Er:glass and Tm:YAG display unique features During this aspect, Just about every leveraging its exclusive attributes to stick out within the wide spectrum of laser crystals.
This aspect of substantial optical get not simply permits a sturdy performance but additionally encourages performance. The significantly less Electrical power required to generate a potent laser beam, the greater source-effective the laser click here method gets to be.
Typical maintenance and calibration are very important to ensure that the laser carries on to operate inside the eye-safe area.
The struggle among both of these sorts of laser crystals is centered about their emission wavelengths, get, and applications. Enable’s dissect the two and find out how they square off towards one another.
Determine five(a) demonstrates the heart beat width and peak electric power of the next-Stokes laser being a function of the incident pump electrical power at fifty kHz. The pulse width is fewer than 2 ns and it decreases While using the expanding pump intensity. The heart beat width could be as narrow as one.1 ns at 27.two W, which can be drastically shortened when compared with that of the fundamental laser and could be generally attributed to the Raman pulse compression[15]. Moreover, the cascaded Raman course of action might also boost the impact of the heart beat compression[43]. Furthermore, these a brief pulse width may additionally have arisen with the shorter Raman cavity, which is able to reduce the round trip time from the Stokes photons and make the Create-up of the Stokes laser pulse more quickly. Correspondingly, the peak electrical power of one pulse reaches as many as forty kW. Here is the maximum peak electrical power at any time described for the eye-safe diamond Raman lasers to the very best of our knowledge. The standard output electricity and peak energy as being a function of your PRF are revealed in Fig.
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Yb:Er:glass is often Utilized in distance measurements, environmental checking, and protection programs resulting from its high achieve. Tm:YAG is suited to high-electrical power apps like wind velocity measurements and atmospheric studies.
Although eye-safe lasers are safer, poor handling can nevertheless pose risks, which include thermal accidents or accidental beam direction in to the eye.
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Further than these, the emission wavelength of Tm:YAG can also be advantageous in medical purposes, specially in laser medical procedures.