Construction And Working Of Co2 Laser Ppt

Let us first understand the process of absorption.

Construction and working of co2 laser ppt.

The active laser medium laser gain amplification medium is a gas discharge which is air or water cooled depending on the power being applied. Its construction is simple and the output of this laser is continuous. Working of helium neon laser. The working of a laser diode involves 3 processes.

For simplicity let us assume e 1 is the lower energy level and e 2 is the higher energy level. Ruby laser is one of the few solid state lasers that produce visible light. Co2 laser was the first molecular gas laser developed by indian born american scientist prof c k n pillai it is a four level laser and it operates at 10 6 μm in the far ir region. Laser medium the pump source and the optical resonator.

Working of laser diode. The laser radiation of a wavelength of 6943a0 and laser emission is pulsed one. Construction of ruby laser. It is a very efficient laser.

After staying for up to 10 8 second ions get transmitted to the metastable state. Absorption spontaneous emission and stimulated emission. Co2 molecular gas laser. Co2 molecular gas laser.

In those days co2 lasers were developed for defense but it was soon realized that enough of the wavelength is absorbed in the atmosphere to cause severe problems in pointing and focusing the beam at long distances. Reflect most part of the light but allows some part of the light to produce the laser beam. It emits deep red light of wavelength 694 3 nm. It was the first molecular gas laser developed by indian born american scientist prof c k n pillai.

The filling gas within the discharge tube consists of around 10 20 carbon dioxide co 2 around 10 20 nitrogen n 2 a few percent hydrogen h 2 and or xenon xe usually only used in a sealed tube and the remainder of the. Hello guys today i am going to explain you about the construction working and principle of co2 laser in the most easiest manner so that it will long last in your mind and at the same time help. When the flash lamp light will be flashed on ruby rod the chromium ions excited to higher energy states. Co2 laser engraved walnut plaques were a popular item in the 1970s.

This video lecture will explain the construction of carbon dioxide laser. A ruby laser consists of three important elements. Co2 lasers are no longer considered in this role. In co 2 molecular gas laser transition takes place between the vibrational states of carbon dioxide molecules.