Pulse Operation of Chemical Oxygen-Iodine Laser by Pulsed Gas Discharge with the Assistance of Spark Pre-ionization

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...

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Bibliographic Details
Published in:Chinese physics letters 2009-11, Vol.26 (11), p.114201-114201
Main Authors: Guo-Fu, Li, Hai-Jun, Yu, Li-Ping, Duo, Yu-Qi, Jin, Jian, Wang, Feng-Ting, Sang, Ben-Jie, Fang, De-Zhen, Wang
Format: Article
Language:English
Subjects:
Capacitors
Chemical oxygen-iodine lasers
Discharge
Gas discharges
Homogeneity
Iodine
Lasing
Wavelengths
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Summary: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 180 mJ, the corresponding specific output energy is 1.0 J/L.
ISSN:0256-307X
1741-3540
DOI:10.1088/0256-307X/26/11/114201