Laser discharge device for pulse oxygen-iodine chemical laser device
A technology of oxygen iodine chemistry and pulse discharge, which can be applied to excitation methods/devices, etc., can solve problems such as low electrical efficiency and difficulty in amplification, and achieve the effect of stable glow discharge
Inactive Publication Date: 2012-05-30
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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Problems solved by technology
Russia has done a lot of work on photo-induced generation of iodine atoms and then the realization of COIL pulses. It is theoretically estimated that the pulse-to-continuous power ratio of photo-induced pulsed oxygen-iodine lasers can be made very high, close to the limit value of 760, but due to problems such as penetration , it is difficult to enlarge; and the total electrical efficiency is very low, about 0.16%
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[0016] The present invention will be further elaborated below in conjunction with the accompanying drawings of the description.
[0017] Such as figure 1 As shown, the pulse discharge circuit used in the pulsed oxygen iodine chemical laser of the present invention includes a high-voltage energy storage capacitor C0, a discharge circuit energy storage capacitor C1, a peaking capacitor C2, a pre-ionization capacitor C3, and a resistor R1, all of which are connected in parallel on the high-voltage DC power supply A rotary spark charging switch S1 is set between the high-voltage energy storage capacitor C0 and the discharge loop energy storage capacitor C1, a rotary spark discharge switch S2 is set between the discharge loop energy storage capacitor C1 and the peaking capacitor C2, and the limiting resistor R1 passes through the low The inductance spark gap switch S3 is connected with the electrode anode 1 and the electrode cathode 2 is grounded.
[0018] The high-voltage energy ...
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The invention relates to a pulse discharge circuit for a pulse oxygen-iodine chemical laser device, comprising a high-voltage energy storage capacitor, a discharge loop energy storage capacitor, a peaking capacitor, a preionization capacitor and a limiting resistor which are parallelly connected onto a high-voltage direct-current power source. A rotary spark charge switch is arranged between the high-voltage energy storage capacitor and the discharge loop energy storage capacitor, a rotary spark discharge switch is disposed between the discharge loop energy storage capacitor and the peaking capacitor, the limiting resistor is connected with a positive electrode by a low-inductance spark gap switch, a negative electrode is grounded, and the laser discharge circuit is further provided with a preionization pin which is arranged on the surface of the negative electrode and connected to an output end of the peaking capacitor by the preionization capacitor. By the aid of the discharge circuit, time to crest of pulse output voltage is about 20 nanoseconds, and stable glow discharge between electrodes can be realized under the condition of certain gas components.
Description
[0001] technical field [0002] The invention relates to a pulse discharge device, in particular to a pulse discharge device for a pulsed oxygen iodine chemical laser. Background technique [0003] Oxygen-iodine chemical laser is the chemical laser with the shortest wavelength at present. It has the characteristics of high energy, high efficiency, excellent beam quality and low loss fiber transmission efficiency. However, with the in-depth research on the interaction between laser and matter, high-energy pulsed laser has attracted more and more attention from the same industry in the world. Studies in cutting, target destruction, oil drilling, etc. have confirmed that with appropriate pulse frequency and laser energy, the plasma effect and nonlinear effect caused by high-energy continuous wave laser on the surface of the material can be avoided, and the penetration depth is deeper and the speed is higher. faster. Continuous wave high-power laser will produce thermal halo e...
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IPC IPC(8): H01S3/09
Inventor 于海军李国富多丽萍金玉奇桑凤亭汪健
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI