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| Laser Materials Processing Division |
CO2 laser development for material processing and Nanoparticle synthesis
Touch HMI controlled, HVDC excited portable Helium free TEA CO2 Laser system
- The indigenously developed system offers very foot print and weight making it very compact, portable and easily deployable.
- The developed controller
- Its innovatively driven application includes:
- Glass & ceramic drilling - for ongoing laser refurbishment activities
- Laser Induced Breakdown Spectroscopy (LIBS)- for analyzing soil fertility and other application
- Other well-known applications of the system include: paint stripping, light detection and ranging (LIDAR), etc.
- Technical Specification of the system is as:
S. No. |
Parameters |
Feature(s)/ Value(s) |
1. |
Laser type |
Transversely Excited Atmospheric (TEA) pressure compact corona pre-ionized CO2 Laser System |
2. |
Pre-ionization |
Corona pre-ionization |
3. |
Operation modes |
Single Shot, Repetitive (1 to 40 Hz, in the step of 1 Hz) |
4. |
Operating Wavelength |
10.6um |
5. |
Pulse energy |
~1Joule |
6. |
Laser efficiency |
~19% |
7. |
Operating Pressure |
800mbar |
8. |
Type of Electrode |
Ernst Profile, 1 cm discharge width, Al Material |
9. |
Cooling requirement |
Air cooled |
10. |
Gas Filling Mode |
Sealed-off |
11. |
Excitation mean |
Compact & light, current controlled HVDC of 45 kV @ 38 mA |
12. |
Power switching element (S) |
Spark gap |
13. |
Laser head |
Encloses electrodes and ceramic corona plate |
14. |
Resonator |
Plano concave Stable resonator plate |
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Figure 6: HMI controlled, HVDC excited TEA CO2 laser system |
Development of TEA CO2 laser for various applications
High energy, high repetition rate, line tunable TEA CO2 laser
Specifications
Various laser lines emitted by the laser in line tunable mode
Typical applications:
- Laser photochemistry
- Laser isotope separation
- LIDAR
- Laser paint stripping
- Nanoparticle synthesis
Publications:
- Manoj Kumar et al., Optics & Laser Technology, 64, 2014, 64–71.
- Manoj Kumar et al., Optics & Laser Technology, 52, 2013, 57–64.
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TEA CO2 laser based paint-stripping system
 Specifications
Type of laser |
Pulsed TEA CO2 laser |
Pulse energy |
2.0 J |
Pulse repletion rate |
200 Hz |
Operating pressure |
800 mbar |
Paint stripping method |
With the help of robotic arm |
Paint stripping capacity |
4 m2/hr ( ~ 50 micron thick paint) |
Paint stripped samples:
Publications: Manoj Kumar et al., Optics & Laser Technology, 46, 2013, 29–36.
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