Attainment of frequency stable high-energy operation of a CO2 TEA laser by use of a telescopic resonator
Abstract
A description is provided of a hybrid electron-beam sustained TEA CO2 oscillator using a stable telescopic resonator with a magnification of four. This optical configuration results in good mode selection and a large (11.2 mm/e-squared radius) TEM(00) mode. Heterodyne determinations reveal that the intrapulse frequency is constant within the experimental accuracy of 50 kHz at the 1 J output level for pulses of duration 3 microseconds. These results are consistent with the theory of laser-induced medium perturbations.
- Publication:
-
IEEE Journal of Quantum Electronics
- Pub Date:
- March 1985
- DOI:
- 10.1109/JQE.1985.1072643
- Bibcode:
- 1985IJQE...21..188W
- Keywords:
-
- Carbon Dioxide Lasers;
- Frequency Stability;
- High Power Lasers;
- Optical Resonators;
- Pulsed Lasers;
- Tea Lasers;
- Laser Cavities;
- Laser Outputs;
- Near Fields;
- Optical Heterodyning;
- Pulse Duration;
- Waveforms;
- Lasers and Masers