TY - JOUR

T1 - Reliable stimulated Brillouin scattering compression of Nd:YAG laser pulses with liquid fluorocarbon for long-time operation at 10 Hz

AU - Kmetik, Viliam

AU - Fiedorowicz, Henryk

AU - Andreev, Alexander A.

AU - Witte, Klaus J.

AU - Daido, Hiroyuki

AU - Fujita, Hisanori

AU - Nakatsuka, Masahiro

AU - Yamanaka, Tatsuhiko

PY - 1998/10/20

Y1 - 1998/10/20

N2 - Stokes pulses of high energy and high-average power were obtained by stimulated Brillouin scattering (SBS) compression of long Nd:YAG laser pulses. The SBS medium used in the single-cell compressor was liquid ultrafiltered Fluorinert FC-75 fluorocarbon. An output pulse duration of 0.9 ns and a peak-power enhancement by 1 order of magnitude were observed for 10-ns, 0.57-J input pulses at a 10-Hz repetition rate. The compressor internal SBS efficiency reached a value of ηSBS = 94% and the overall device efficiency a value of ηdev = 87%; both values are the highest reported so far to the best of our knowledge. The simple single-cell SBS geometry provided excellent energy and pointing stability of the Stokes pulse. Its temporal shape turned out to be somewhat less stable. The SBS process also partially improved the laser beam quality. The Stokes pulses proved to be capable of generating radiation in the extreme-ultraviolet and soft-x-ray regions over a period of two months without any significant output deterioration.

AB - Stokes pulses of high energy and high-average power were obtained by stimulated Brillouin scattering (SBS) compression of long Nd:YAG laser pulses. The SBS medium used in the single-cell compressor was liquid ultrafiltered Fluorinert FC-75 fluorocarbon. An output pulse duration of 0.9 ns and a peak-power enhancement by 1 order of magnitude were observed for 10-ns, 0.57-J input pulses at a 10-Hz repetition rate. The compressor internal SBS efficiency reached a value of ηSBS = 94% and the overall device efficiency a value of ηdev = 87%; both values are the highest reported so far to the best of our knowledge. The simple single-cell SBS geometry provided excellent energy and pointing stability of the Stokes pulse. Its temporal shape turned out to be somewhat less stable. The SBS process also partially improved the laser beam quality. The Stokes pulses proved to be capable of generating radiation in the extreme-ultraviolet and soft-x-ray regions over a period of two months without any significant output deterioration.

UR - http://www.scopus.com/inward/record.url?scp=0001286351&partnerID=8YFLogxK

U2 - 10.1364/AO.37.007085

DO - 10.1364/AO.37.007085

M3 - Article

AN - SCOPUS:0001286351

VL - 37

SP - 7085

EP - 7090

JO - Applied Optics

JF - Applied Optics

SN - 1559-128X

IS - 30

ER -