Short-pulse generation by saturated KrF laser amplification of a steep Stokes pulse produced by two-step stimulated Brillouin scattering

Kenji Kuwahara; Eiichi Takahashi; Yuji Matsumoto; Susumu Kato; Yoshiro Owadano

doi:10.1364/JOSAB.17.001943

Journal of the Optical Society of America B
Vol. 17,
Issue 11,
pp. 1943-1947
(2000)
•https://doi.org/10.1364/JOSAB.17.001943

Short-pulse generation by saturated KrF laser amplification of a steep Stokes pulse produced by two-step stimulated Brillouin scattering

Kenji Kuwahara, Eiichi Takahashi, Yuji Matsumoto, Susumu Kato, and Yoshiro Owadano

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Kenji Kuwahara, Eiichi Takahashi, Yuji Matsumoto, Susumu Kato, and Yoshiro Owadano, "Short-pulse generation by saturated KrF laser amplification of a steep Stokes pulse produced by two-step stimulated Brillouin scattering," J. Opt. Soc. Am. B 17, 1943-1947 (2000)

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Abstract

We propose a new method for generating short laser pulses. It consists of generation of steep pulses and saturated amplification. A steep Stokes pulse created by two-step stimulated Brillouin scattering is amplified with a KrF laser under conditions of strong saturation. Pulse shortening by approximately 40% is achieved by amplification.

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Gas	$g_{B}$ (cm/MW)	$τ_{B}$ (ns)	$ν_{B}$ (GHz)
${SF}_{6}$	$0.9 \times 10^{- 2}$	0.6	0.53
Xe	$1.8 \times 10^{- 3}$	0.4	0.81
Ar	$1.5 \times 10^{- 4}$	0.1	3.18
$N_{2}$	$1.7 \times 10^{- 4}$	0.2	1.59
${CH}_{4}$	$8.0 \times 10^{- 4}$	0.1	3.18

Liquid	T (°C)	$g_{B}$ $(cm / MW \times 10^{- 3})$	$τ_{B}$ (ns)	${τ_{B}}^{*}$ (ns)	${ν_{B}}^{*}$ (GHz)
${CS}_{2}$	20	68	6.4	0.35	0.91
Water	20	3.8	1.87	0.10	3.18
Acetone	20	15.8	2.67	0.15	2.12
${CCl}_{4}$	20	3.8	0.60	0.033	9.65
Fluorinert FC-75	25	4.5–5	0.9	0.049	6.50
Fluorinert FC-72	25	6–6.5	1.2	0.065	4.90

Gas	$g_{B}$ (cm/MW)	$τ_{B}$ (ns)	$ν_{B}$ (GHz)
${SF}_{6}$	$0.9 \times 10^{- 2}$	0.6	0.53
Xe	$1.8 \times 10^{- 3}$	0.4	0.81
Ar	$1.5 \times 10^{- 4}$	0.1	3.18
$N_{2}$	$1.7 \times 10^{- 4}$	0.2	1.59
${CH}_{4}$	$8.0 \times 10^{- 4}$	0.1	3.18

Liquid	T (°C)	$g_{B}$ $(cm / MW \times 10^{- 3})$	$τ_{B}$ (ns)	${τ_{B}}^{*}$ (ns)	${ν_{B}}^{*}$ (GHz)
${CS}_{2}$	20	68	6.4	0.35	0.91
Water	20	3.8	1.87	0.10	3.18
Acetone	20	15.8	2.67	0.15	2.12
${CCl}_{4}$	20	3.8	0.60	0.033	9.65
Fluorinert FC-75	25	4.5–5	0.9	0.049	6.50
Fluorinert FC-72	25	6–6.5	1.2	0.065	4.90

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Tables (2)

Journal of the Optical Society of America B