Pulse characteristics of a dual-wavelength tunable TEA CO2 laser

LU Yan-zhao; WANG Xin-bing; DONG Ju; ZHANG Xue-ling

doi:10.3969/j.issn.1001-3806.2010.01.025

In order to get a dual-wavelength tunable CO2 laser, a two-resonator laser was developed, which consists of an output coupler and two diffraction gratings. The output pulse characteristics and tuning range were also analyzed experimentally. The experimental results indicate that the two resonators can oscillate independently. Two widely tunable laser pulses are generated without spatial competition. The temporal synchronization of the lines is controlled by rotating the gratings within a narrow range for varying their losses.

Pulse characteristics of a dual-wavelength tunable TEA CO2 laser

Corresponding author: WANG Xin-bing, xbwang@mail.hust.edu.cn;

1. Wuhan National Laboratory for Optoelectronics, College of Optoelectronics Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China

Received Date: 2008-10-06

Accepted Date: 2008-12-27

Available Online: 2010-01-25

Abstract: In order to get a dual-wavelength tunable CO2 laser, a two-resonator laser was developed, which consists of an output coupler and two diffraction gratings. The output pulse characteristics and tuning range were also analyzed experimentally. The experimental results indicate that the two resonators can oscillate independently. Two widely tunable laser pulses are generated without spatial competition. The temporal synchronization of the lines is controlled by rotating the gratings within a narrow range for varying their losses.

HTML

Reference (10)

[1]	KARAPUZIKOV A I,MALOV A N,SHERSTOV I V.Tunable TEA CO2 laser for long-range DIAL lidar[J].Infrared Physics&Technology,2000,41(2):77-85.
[2]	QU Y Ch,REN D M,HU X Y,et al.Research of rapidly tuning technology of miniature TEA CO2 laser[J].Laser Technology,2003,27(6):547-550 (in Chinese).
[3]	PAN D R,TAN J C.Deuterium separation by multiple-photon dissociation of 2,2-dichloro-1,1,1-trifluoroethane in a two-frequency CO2 laser field[J].Chinese Journal of Lasers,1982,9(3):152-156(in Chinese).
[4]	LI T Q,RAN Y,QIN J Y.Study on tuning characteristics of optically pumped cavity NH3 submillimeter wave laser[J].Laser&Infrared,2002,32(1):30-32(in Chinese).
[5]	TOCHITSKY S Y,SUNG C,TRUBNICK S E,et al.High power tunable,0.5～0.3THz radiation source based on nonlinear difference frequency mixing of CO2 laser lines[J].J O S A,2007,B24(9):2509-2516.
[6]	JIANG Y,DING Y J.Efficient terahertz generation from two collinearly propagating CO2 laser pulses[J].A P L,2007,91(9):091108.
[7]	LI Zh H,LI Y D,LIAO J M,et al.Experimental investigation of time-synchronized dual-wavelength TEA CO2 laser[J].Laser&Infrared,2007,37(1):37-40(in Chinese).
[8]	HARRISON R G,BUTCHER S R.Tunable simultaneous double wavelength operation of a TEA CO2 laser[J].Phys Lett,1977,A61(3):154-156.
[9]	HARD T M.Laser wavelength selection and output coupling by a grating[J].Appl Opt,1970,9(8):1825-1830.
[10]	APOLLONOV V V,GRIBENYUKOV A I,KOROTKOVA V V,et al.Subtraction of the CO2 laser radiation frequencies in a ZnGeP2 crystal[J].Quantum Electronics,1996,26(5):469-470.

Pulse characteristics of a dual-wavelength tunable TEA CO2 laser

Abstract

References

Proportional views

通讯作者: 陈斌, bchen63@163.com

Proportional views