In 1960 T. Maiman realized the first laser, the Ruby laser, which started a tremendous and ongoing development of laser sciences and optical technologies. Looking back into laser history, Maiman's famous Ruby laser initiated a fascinating development, which also led to the invention of the powerful tiny diode laser used here to pump the Ruby laser, allowing now a compact and low-cost laser setup, well suited for demonstration and education purposes.
This experimental Ruby laser allows the study of the observation of the fluorescence and laser spectrum with oscillations of both the R lines. The dynamic of the three level laser system is studied by modulating the pump diode laser. It seems so, as if with this system
"The Laser Odyssey"
will find its end.
Molecular spectroscopy is one of the most important technologies to identify molecules in science, chemistry, biology and even in security applications. Precision spectroscopy, optical communication, modern length and frequency measurements using references and secondary frequency standards respectively based on stabilised laser. Modern microprocessor and control technology as well as precision mechanics enabled us to develop a laser head based on off-the-shelf green laser modules, which are commonly used in laser pointer. In combination with the laser controller we obtain a temperature stability of ± 0.004 °C resulting in a pure single mode emission frequency with a stability of ± 17.8 kHz which is more than enough for spectroscopic applications. The green emission of the laser head is temperature tuned to fits to the well-known strong absorption line around 532 nm, resulting in a strong fluorescence emission. The coloured line spectrum shown on the right, has been taken by using the provided grating with 600 lines/mm. The grating is placed directly in front of a digital camera, tilted a bit up or down to catch the variety of coloured lines of the first or second order. Wow, not only the students will be delighted to see the visible vibrational transitions with the naked eye, a tremendous contribution to better understand molecular physics.
This unique experimental laser gyroscope needs no extra bulky PC system due to the consequent application of modern microprocessor and display technology. It is also the only educational laser gyroscope with direction discrimination based on optically generated quadrature signals.
To our best knowledge we can say, that we offer the first and only blue diode pumped Pr:YLF educational laser worldwide. Indeed, an exciting piece of photonics art for high level education!
To our best knowledge we can say, that we offer the first and only green laser pumped educational Iodine Raman Ringlaser worldwide.
Indeed, an exciting piece of photonics art for high level education!
Diode pumped Ruby Laser
HeNe Laser Gyroscope
Iodine Raman Laser
In this section we are reporting about new and outstanding experiments