High energy pulsed dye lasers for atmospheric sounding

J. Y. Allain

doi:10.1364/AO.18.000287

Applied Optics
Vol. 18,
Issue 3,
pp. 287-289
(1979)
•https://doi.org/10.1364/AO.18.000287

High energy pulsed dye lasers for atmospheric sounding

J. Y. Allain

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J. Y. Allain, "High energy pulsed dye lasers for atmospheric sounding," Appl. Opt. 18, 287-289 (1979)

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Abstract

Experimental results are presented, obtained with dye lasers using different configurations of bielliptical cavities. This development was carried out for an atmospheric sounding program, which requires pulsed tunable lasers of high average power covering a large spectral range.

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	Dye Concentration (mole/liter)	Rhodamine 6G in water 1.2 × 10⁻⁴	Rh6G in methanol 8 × 10⁻⁵	Rh640 in methanol 1.2 × 10⁻⁴	Coumarin C14 in ethanol 2 × 10⁻⁴
	R_min	40%	30%	60%	70%
Bielliptical reflector	Cavity length (m)	2	0.8	1	0.7
250-J electrical input energy	Energy (J)	0.23	0.75	0.45	0.3
	Divergence (mrad) (full angle)	0.7	3.5	2	4
	Over-all Efficiency	0.09%	0.3%	0.18%	0.12%
Quadrielliptical reflector	Cavity length (m)	2	0.8	1	0.85
500-J electrical input energy	Energy (J)	1.15	3.5	2.3	2.1
	Divergence (mrad) (full angle)	0.7	4	2	4
	Over-all Efficiency	0.23%	0.7%	0.46%	0.42%
Hexaelliptical reflector	Cavity length (m)	2	1	1	0.85
750-J electrical input energy	Energy (J)	2	6	4	3.8
	Divergence (mrad) (full angle)	0.8	5	3	6
	Over-all efficiency	0.26%	0.8%	0.633%	0.5%

Fundamental:	Rhodamine 6G dye laser at 604 nm
	Concentration: 9 × 10⁻⁵ mole/liter
	Solvent: water with 4% ammonix LO
	Electrical input energy: 720 J (180 J for each flash)
	Pulse duration at halfmaximum: 3,5 μsec
	Energy output: 875 mJ
	Peak power: 250 kW
	Divergence (full angle): 0.4 mrad
	Spectral width: 0.1 nm
	Efficiency: 0.12%
SH9 of Rh6G at 302 nm:	Energy output: 85 mJ
	Conversion efficiency: 9.7%
	Total efficiency: 0.012%

	Dye Concentration (mole/liter)	Rhodamine 6G in water 1.2 × 10⁻⁴	Rh6G in methanol 8 × 10⁻⁵	Rh640 in methanol 1.2 × 10⁻⁴	Coumarin C14 in ethanol 2 × 10⁻⁴
	R_min	40%	30%	60%	70%
Bielliptical reflector	Cavity length (m)	2	0.8	1	0.7
250-J electrical input energy	Energy (J)	0.23	0.75	0.45	0.3
	Divergence (mrad) (full angle)	0.7	3.5	2	4
	Over-all Efficiency	0.09%	0.3%	0.18%	0.12%
Quadrielliptical reflector	Cavity length (m)	2	0.8	1	0.85
500-J electrical input energy	Energy (J)	1.15	3.5	2.3	2.1
	Divergence (mrad) (full angle)	0.7	4	2	4
	Over-all Efficiency	0.23%	0.7%	0.46%	0.42%
Hexaelliptical reflector	Cavity length (m)	2	1	1	0.85
750-J electrical input energy	Energy (J)	2	6	4	3.8
	Divergence (mrad) (full angle)	0.8	5	3	6
	Over-all efficiency	0.26%	0.8%	0.633%	0.5%

Fundamental:	Rhodamine 6G dye laser at 604 nm
	Concentration: 9 × 10⁻⁵ mole/liter
	Solvent: water with 4% ammonix LO
	Electrical input energy: 720 J (180 J for each flash)
	Pulse duration at halfmaximum: 3,5 μsec
	Energy output: 875 mJ
	Peak power: 250 kW
	Divergence (full angle): 0.4 mrad
	Spectral width: 0.1 nm
	Efficiency: 0.12%
SH9 of Rh6G at 302 nm:	Energy output: 85 mJ
	Conversion efficiency: 9.7%
	Total efficiency: 0.012%

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Applied Optics