Effect of mode characteristics of hole-output-coupling THz gas laser

Zhu Baohua; Zhou Xun

doi:10.11884/HPLPB201830.180307

Volume 30 Issue 12

Dec. 2018

Turn off MathJax

Article Contents

Article Navigation > High Power Laser and Particle Beams > 2018 > 30(12): 123101

Zhu Baohua, Zhou Xun. Effect of mode characteristics of hole-output-coupling THz gas laser[J]. High Power Laser and Particle Beams, 2018, 30: 123101. doi: 10.11884/HPLPB201830.180307

Citation:

Zhu Baohua, Zhou Xun. Effect of mode characteristics of hole-output-coupling THz gas laser[J]. High Power Laser and Particle Beams, 2018, 30: 123101. doi: 10.11884/HPLPB201830.180307

Zhu Baohua, Zhou Xun. Effect of mode characteristics of hole-output-coupling THz gas laser[J]. High Power Laser and Particle Beams, 2018, 30: 123101. doi: 10.11884/HPLPB201830.180307

Citation:

Zhu Baohua, Zhou Xun. Effect of mode characteristics of hole-output-coupling THz gas laser[J]. High Power Laser and Particle Beams, 2018, 30: 123101. doi: 10.11884/HPLPB201830.180307

PDF( 2983 KB)

Effect of mode characteristics of hole-output-coupling THz gas laser

doi: 10.11884/HPLPB201830.180307

Zhu Baohua,
Zhou Xun^,

Research Center of Laser Fusion, CAEP, Mianyang 621900, China

Received Date: 2018-11-07
Rev Recd Date: 2018-12-05
Publish Date: 2018-12-15

Abstract

Abstract

Hole-coupling technique is a most common design for high power optically-pumped terahertz gas lasers. In this paper, the intra-cavity modes and beam characteristics of the hole-coupling THz resonators have been numerically calculated with a co-called eigenvector method. Several lowest order modes and their diffraction losses of a series of hole-coupling THz resonators with different g parameters are given. The output beam characteristics from the small hole are studied with the diffraction integral associating with the matrix optical method. The far-field distributions and the divergence angles of each mode are computed.
- THz gas laser,
- hole-coupling,
- resonator modes,
- output beam characteristics

FullText(HTML)

References(7)

References

[1]	Jacobsson S. Optically pumped far infrared lasers[J]. Infrared Physics, 1989, 29(5): 853-874. doi: 10.1016/0020-0891(89)90035-3
[2]	Boscolo I, Pando A, Passaseo A. High power CH₃OH FIR laser system with long-term stability[J]. International Journal of Infrared and Millimeter Waves, 1986, 7(10): 1677-1690. doi: 10.1007/BF01010765
[3]	Sun Yude, Fu Shiyou, Wang Jing, et al. Optically pumped terahertz lasers with high pulse repetition frequency: theory and design[J]. Chinese Optics Letters, 2009, 7(2): 127-129. doi: 10.3788/COL20090702.0127
[4]	Harth A. Pump beam propagation in circular waveguides of optically pumped far-infrared lasers[J]. International Journal of Infrared and Millimeter Waves, 1991, 12(3): 221-237. doi: 10.1007/BF01010297
[5]	Cheng Yuanying, Wang Youqing, Hu Jin, et al. An eigenvector method for optical field simulation[J]. Optics Communications, 2004, 234(1): 1-6.
[6]	Wang D, Qin Y, Tang X, et al. Eigenvector method for unstable resonator simulations[J]. Optics Communications, 2012, 285(10/11): 2682-2687.
[7]	秦应雄. 大增益区高功率激光谐振腔的研究[D]. 武汉: 华中科技大学, 2008. Qin Yingxiong. Study on high power laser resonators with large gain zone. Wuhan: Huazhong University of Science & Technology, 2008