In summary, we obtained a 1485 nm eye-safe intra-cavity diamond cascaded Raman laser with significant peak electricity and narrow linewidth. Benefitting from the usage of composite crystal and in-band pumping and The great manner matching supplied by the V-shaped folded cavity, the system accomplished an average output electric power of 2.
1 Most important application is wind velocity measurement. Higher-ability LIDAR programs utilizing Tm:YAG crystals can job laser beams to large altitudes to evaluate wind speed and course with spectacular accuracy.
Inside the landscape of remote sensing and LIDAR programs, the pivotal function performed by Yb:Er:glass and Tm:YAG crystals can't be overstated. Every, with its exclusive set of Houses, contributes noticeably to the improvement of those critical technologies.
Moving on to Tm:YAG, the narrative shifts a little. This laser crystal incorporates a dominant emission line within the vicinity of two.0 µm, a range that is definitely also regarded as being eye-safe. Having said that, it’s the exclusive properties linked to this particular wavelength that truly established Tm:YAG aside.
Tm:YAG crystals, on the other hand, have discovered a comfortable house in higher-electrical power purposes, which include remote sensing and LIDAR programs. Their outstanding energy dealing with abilities set them apart, even within the deal with in their lessen acquire parameters.
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As an example, the extended wavelengths of eye-safe lasers can cause harm to the cornea or maybe the lens on account of absorption. For that reason, correct safety actions and tips must nevertheless be followed diligently when handling and functioning these lasers.
The fight concerning these two forms of laser crystals is centered all around their emission wavelengths, obtain, and applications. Let’s dissect The 2 and find out how they sq. off in opposition to click here each other.
The struggle involving both of these forms of laser crystals is centered close to their emission wavelengths, get, and purposes. Enable’s dissect The 2 and find out how they square off in opposition to one another.
Determine 5(a) exhibits the heart beat width and peak electric power of the next-Stokes laser as a operate from the incident pump ability at 50 kHz. The heart beat width is below two ns and it decreases Along with the growing pump intensity. The heart beat width could be as slender as 1.1 ns at 27.two W, which is drastically shortened in comparison with that of the elemental laser and will be primarily attributed to your Raman pulse compression[fifteen]. Additionally, the cascaded Raman method can also greatly enhance the effect of the heart beat compression[forty three]. On top of that, such a short pulse width might also have arisen from your shorter Raman cavity, that may decrease the spherical vacation time of your Stokes photons and make the Establish-up of your Stokes laser pulse a lot quicker. Correspondingly, the height electricity of an individual pulse reaches as much as 40 kW. Here is the optimum peak electrical power ever reported with the eye-safe diamond Raman lasers to the most beneficial of our know-how. The typical output power and peak electric power like a functionality of your PRF are demonstrated in Fig.
The special crystalline composition of Tm:YAG endows it which has a significant hurt threshold, enabling it to function proficiently below higher-power functions.
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Yb:Er:glass is commonly Employed in distance measurements, environmental monitoring, and protection programs because of its significant obtain. Tm:YAG is suited for significant-electricity applications like wind velocity measurements and atmospheric scientific studies.
Each time a laser beam interacts With all the human eye, the character on the injury incurred is dependent noticeably around the laser’s wavelength. Specified wavelengths tend to be more readily absorbed through the cornea or perhaps the lens, while some penetrate even further to the retina, The sunshine-delicate layer in the back of the attention.
Beyond these, the emission wavelength of Tm:YAG is usually effective in healthcare purposes, exclusively in laser operation.