Compressed air ignition non-electric pyrotechnically pumped laser technology

Wei Jiang; Fusheng Zheng; Zhibing He; Cheng Ye; Yongjian Tang

doi:10.11884/HPLPB202436.240038

Journals >High Power Laser and Particle Beams >Volume 36 >Issue 6 >Page 061008 > Article

High Power Laser and Particle Beams
Vol. 36, Issue 6, 061008 (2024)

Compressed air ignition non-electric pyrotechnically pumped laser technology

Wei Jiang^1,2, Fusheng Zheng^1,*, Zhibing He³, Cheng Ye¹, and Yongjian Tang¹

Author Affiliations

¹School of Materials and Chemistry, Southwest University of Science and Technology, Mianyang 621010, China

²Mianyang Teachers’ College, Mianyang 621000, China

³Laser Fusion Research Center, CAEP, Mianyang 621900, China

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DOI: 10.11884/HPLPB202436.240038 Cite this Article

Wei Jiang, Fusheng Zheng, Zhibing He, Cheng Ye, Yongjian Tang. Compressed air ignition non-electric pyrotechnically pumped laser technology[J]. High Power Laser and Particle Beams, 2024, 36(6): 061008 Copy Citation Text

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Fig. 1. Compressed air ignition pyrotechnic pumped laser structure

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Fig. 2. Pyrotechnic burn time waveforms

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Fig. 3. Spectral analysis of pyrotechnic combustion ignited by compressed air

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Fig. 4. Laser output spectrum of compressed air ignition

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Fig. 5. Laser temporal waveforms

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cylinder bore diameter/mm	piston stroke/mm	luminescent length/mm	compression ratio	adiabatic temperature/℃	ignition status
8	100	10	11.00	322	√
8	100	15	7.67	264	√
8	100	20	6.00	228	√
8	100	25	5.00	202	√
8	100	30	4.33	183	×
8	100	35	3.86	168	×
10	100	10	11.00	322	√
10	100	15	7.67	264	√
10	100	20	6.00	228	×
10	100	25	5.00	202	×
10	100	30	4.33	183	×
10	100	35	3.86	168	×

Table 1. Experimental results of compressed air ignition

pyrotechnic mass/mg	compression ratio	luminescent length/mm	laser energy/mJ	note
10	7.67	15		no laser
10	6.00	20		no laser
10	5.00	25	8.4
20	7.67	15	6.0
20	6.00	20	10.5
20	5.00	25	12.7
30	7.67	15		cylinder explosion
30	6.00	20	18.4
30	5.00	25	30.2
40	7.67	15		cylinder explosion
40	6.00	20		cylinder explosion
40	5.00	25		cylinder explosion

Table 2. Experimental results of laser output with compressed air ignition

reference	ignition method	pyrotechnic form	max threshold mass/mg	max pulse width/ms	max pyrotechnic mass/mg	max laser energy	max specific energy/(J·g⁻¹)
this article	compressed air	dust cloud	10	5	30	30.2	1.01
in Ref.[16]	point-type electric	dust cloud	20	50	150	2151	14.33
in Ref.[2]	line-type electric	granular	80	7-10	—	—	—
in Ref.[10]	line-type electric	granular	—	7	500	1000	2.00
in Ref.[9]	line-type electric	granular	—	1.2	50	55	1.10
in Ref.[23]	line-type electric	torus	—	5.6	850	5500	6.47
in Ref.[15]	line-type electric	granular	1080	40	2520	1010	0.40
in Ref.[19]	surface flash electric	plane	20	10	100	702	7.02

Table 3. Main research achievements of the pyrotechnic pumped laser

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