Study on incoherent combining technology of pulsed laser beams

LI Hongmin; ZUO Junwei; XU Jian; XU Yiting; PENG Qinjun; XU Zuyan

doi:10.7510/jgjs.issn.1001-3806.2015.02.020

In order to get laser output with high average power and good beam quality, the method of sequence combing technology of pulsed lasers was developed based on the synchronizing and delay controlling technique of pulses. The multiple beam combination was performed through the optical beam combination device (OBCD).Three pulsed beams were combined successfully with this method, and the high combining efficiency of 95.8% was achieved. Experimental results show that the power of the combined beam is nearly equal to the total power of every single beam with high beam quality.

Study on incoherent combining technology of pulsed laser beams

Corresponding author: PENG Qinjun, pengqinjun@163.com;

1. Research Center for Laser Physics and Technology, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China;

2. College of Materials Sciences and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing 100049, China

Received Date: 2014-02-16

Accepted Date: 2014-02-26

Available Online: 2015-03-25

Abstract: In order to get laser output with high average power and good beam quality, the method of sequence combing technology of pulsed lasers was developed based on the synchronizing and delay controlling technique of pulses. The multiple beam combination was performed through the optical beam combination device (OBCD).Three pulsed beams were combined successfully with this method, and the high combining efficiency of 95.8% was achieved. Experimental results show that the power of the combined beam is nearly equal to the total power of every single beam with high beam quality.

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Reference (12)

[1]	BEHRENBERG D, FRANZKA S, PETERMANN N, et al. Photothermal laser processing of thin silicon nanoparticle films: on the impact of oxide formation on film morphology[J].Applied Physics,2012,A106(4):853-861.
[2]	HOYT C W, SHEIK-BAHAE M, EBRAHIMZADEH M. High-power picosecond optical parametric oscillator based on periodically poled lithium niobate[J].Optics Letters, 2002, 27(17): 1543-1545.
[3]	HAYNAM C A, WEGNER P J, AUERBACH J M, et al. National ignition facility laser performance status[J].Applied Optics, 2007, 46(16):3276-3303.
[4]	FAN T Y. Laser beam combining for high-power, high-radiance sources[J].IEEE Journal of Selected Topics in Quantum Electronics, 2005, 11(3): 567-577.
[5]	JI X L, LI X Q. Influence of turbulence on the coherent and incoherent combinations of off-axis Gaussian beams[J]. Acta Physica Sinica, 2008, 57(12): 7674-7679(in Chinese).
[6]	WANG J Z, WANG Y F, BAI H J. Study on multi-channel spectral beam combined characteristics based on volume Bragg gratings[J]. Laser Technology, 2012, 36(5): 593-596(in Chinese).
[7]	ZHOU P, LIU Z J, XU X J. Comparative of coherent combining and incoherent combining of fiber lasers [J]. Chinese Journal of Lasers, 2009, 36(2): 276-280(in Chinese).
[8]	XU J, GAO H W, XU Y T, et al. Sequence combining of pulsed lasers usingrefraction-beam-displacement [J].Applied Optics, 2013, 52(2): 208-211.
[9]	ZHANG Z Y, ZHANG J, ZHU D Y. Laser range finder based on phase shift measurement[J]. Opto-Electronic Engineering, 2006,33(8):75-78(in Chinese).
[10]	XU X Z, LI Z Y, LI C L, et al. Design on driving generator based on CPLD technology for CCD camera with optional output[J]. Acta Photonica Sinica, 2004, 33(12): 1504-1507(in Chinese).
[11]	FENG G Y, ZHOU S H. Discussion of comprehensive evaluation on laser beam quality[J]. Chinese Journal of Lasers, 2009, 36(7): 1643-1653(in Chinese).
[12]	GAO W, WANG Y P, LI B. Study on characterization and diagnosis of high-power laser beam quality[J]. Infrared and Laser Engineering, 2003, 32(1): 61-64(in Chinese).

Study on incoherent combining technology of pulsed laser beams

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通讯作者: 陈斌, bchen63@163.com

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