MA Xiangtai, SHI Zengkai, QIAN Zhaoyong, HU Yanfeng, DONG Xurong. Accuracy of Precise Timing Based on Uncombined Precise Point Positioning Algorithm in BeiDou Navigation Satellite System[J]. Journal of Electronics & Information Technology, 2022, 44(9): 3203-3211. doi: 10.11999/JEIT210629
Citation:
Wu Shi-Yi. AN OPTICALLY PUMPED CF4 LASER[J]. Journal of Electronics & Information Technology, 1982, 4(1): 53-59.
MA Xiangtai, SHI Zengkai, QIAN Zhaoyong, HU Yanfeng, DONG Xurong. Accuracy of Precise Timing Based on Uncombined Precise Point Positioning Algorithm in BeiDou Navigation Satellite System[J]. Journal of Electronics & Information Technology, 2022, 44(9): 3203-3211. doi: 10.11999/JEIT210629
Citation:
Wu Shi-Yi. AN OPTICALLY PUMPED CF4 LASER[J]. Journal of Electronics & Information Technology, 1982, 4(1): 53-59.
The stimulated emission of 16 m was obtained as a result of optical pumping CF4 molecules with the 9R(12) line of TEA CO2 laser. The pump efficiency has been increased by narrowing the frequency bandwidth of CO2 pump laser with a CW gain cell, and by matching well the pump source to the pumped resonator.With a pump source energy of 700 mJ, a 25 mJ pulse energy of 16 m laser output, an optical quantum efficiency of 7%, a pulse width of less than 150 ns were obtained. This laser can be operated pulsewise several thousand times with a repetition rate of 0.5 Hz. The relations between the output energy of CF4 laser and some parameters (T, p, Ep) have been determined experimentally. The result of 9R(10) pump line is also observed, and compared with the result obtained with high pressure continously tunable CO2 laser.
R. J. Tensen et al., Laser Focus, 12(1976), 51.[2]J. J. Tice and C. Wittig, App1. Phys. Lett., 30(1977), 420.[3]J. M. Tell and C. Ecrarhardt, Laser Focus, 5(1979), 60.[4]A. Stein and P. Rohinowitz, Opt. Lett., 3(1978), 97.[5]V. Yubaranev, B. I. Vasilov and V. S. Letokhov, Soviet of Quant Elect., 8(1978). 544.[6]S. S. Alimpier and G. S. Bavanov, Sov. Tech. Phys. Lett.,4(1978), 69.[7]А.П.Бабишев и др.,квантовая электроника, 8(1981), 231.[8]R. S. Medowell and C. R. Tones, Opt. Lett., 4(1978), 274.[9]L. J. Radziemski et al., Opt. Lett., 3(1978), 241.
MA Xiangtai, SHI Zengkai, QIAN Zhaoyong, HU Yanfeng, DONG Xurong. Accuracy of Precise Timing Based on Uncombined Precise Point Positioning Algorithm in BeiDou Navigation Satellite System[J]. Journal of Electronics & Information Technology, 2022, 44(9): 3203-3211. doi: 10.11999/JEIT210629
MA Xiangtai, SHI Zengkai, QIAN Zhaoyong, HU Yanfeng, DONG Xurong. Accuracy of Precise Timing Based on Uncombined Precise Point Positioning Algorithm in BeiDou Navigation Satellite System[J]. Journal of Electronics & Information Technology, 2022, 44(9): 3203-3211. doi: 10.11999/JEIT210629
本站查看
DownLoad: