Preionizer-induced pulsed-mode operation of a transverse-flow transversely excited CW CO2 laser

被引:3
作者
Choudhary, P [1 ]
Agarwal, MS [1 ]
Nath, AK [1 ]
机构
[1] INDIAN INST TECHNOL, DEPT ELECT ENGN, BOMBAY, MAHARASHTRA, INDIA
关键词
D O I
10.1109/3.511542
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
A pulse-preionized, de-excited, transverse-dow, CW CO2 laser has been operated in pulsed mode without using a discharge power-switching scheme. The pulsation in laser power is produced by a pulsed current that flows from the de power supply due to the collapse in the discharge impedance whenever a preionizer pulse appears. By properly choosing the preionizer-pulse repetition frequency, de power-supply filter-capacitor value, and gas composition, the laser pulsation has been enhanced. This laser has been operated at 1-kW average laser power level in pulsed mode at 1.3-kHz pulse repetition frequency with a peak-to-average power ratio of 3.35 and laser-power modulation depth of almost 100%.
引用
收藏
页码:1306 / 1309
页数:4
相关论文
共 12 条
[1]  
AVERBUKH BB, 1993, SPIE IND LASERS LASE, V2257, P112
[2]  
BAKER HJ, 1990, SPIE, V1225, P349
[3]  
Belforte D., 1992, IND LASER HDB
[4]  
GNEDOY SA, 1993, SPIE, V2257, P144
[5]  
Golubev V. L., 1984, Soviet Journal of Quantum Electronics, V14, P1423, DOI 10.1070/QE1984v014n10ABEH006429
[6]  
GRACHEV GN, 1993, SPIE, V2257, P106
[7]  
HONGIN H, 1991, SPIE ADV LASER CONCE, V1501, P198
[8]   OPERATIONAL CHARACTERISTICS OF A PULSE-SUSTAINED DC-EXCITED TRANSVERSE-FLOW CW CO2-LASER OF 5-KW OUTPUT POWER [J].
NATH, AK ;
ABHINANDAN, L ;
CHOUDHARY, P .
OPTICAL ENGINEERING, 1994, 33 (06) :1889-1893
[9]   HIGH REPETITION RATE OPERATION OF A PHOTOINITIATED IMPULSE-ENHANCED ELECTRICALLY EXCITED CO2-LASER DISCHARGE USING A BURST-MODE TECHNIQUE [J].
NIKUMB, SK ;
SEGUIN, HJJ ;
SEGUIN, VA ;
PRESAKARCHUK, D .
APPLIED PHYSICS LETTERS, 1988, 53 (14) :1254-1256
[10]  
POWELL J, 1985, INT C LAS MAN BIRM U, P37