| FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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Pulse Operation of Chemical Oxygen-Iodine Laser by Pulsed Gas Discharge with the Assistance of Spark Pre-ionization |
| LI Guo-Fu1,2, YU Hai-Jun1, DUO Li-Ping1, JIN Yu-Qi1, WANG Jian1, SANG Feng-Ting1, FANG Ben-Jie1, WANG De-Zhen2 |
| 1Key Laboratory of Chemical Laser, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 1160232School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian 116024 |
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| Cite this article: |
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LI Guo-Fu, YU Hai-Jun, DUO Li-Ping et al 2009 Chin. Phys. Lett. 26 114201 |
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Abstract The continuous wavelength chemical oxygen-iodine laser can be turned into pulse operation mode in order to obtain high energy and high pulse power. We propose an approach to produce iodine atoms instantaneously by pulsed gas discharge with the assistance of spark pre-ionization to achieve the pulsed goal. The influence of spark pre-ionization on discharge homogeneity is discussed. Voltage-current characteristics are shown and discussed in existence of the pre-ionization capacitor and peaking capacitor. The spark pre-ionization and peaking capacitor are very helpful in obtaining a stable and homogeneous discharge. The lasing is achieved at the total pressure of 2.2-2.9kPa and single pulse energy is up to 180mJ, the corresponding specific output energy is 1.0J/L.
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| Keywords:
42.55.Ks
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Received: 02 July 2009
Published: 30 October 2009
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