H.J. Kong et al 2009 Nucl. Fusion 49 125002 doi:10.1088/0029-5515/49/12/125002
Wave-front dividing beam combined laser fusion driver using stimulated Brillouin scattering phase conjugation mirrors
H.J. Kong1, J.S. Shin1, J.W. Yoon2 and D.H. Beak1
Show affiliationsThe beam combination method using stimulated Brillouin scattering phase conjugation mirrors (SBS-PCMs) is a promising technique for a commercial laser fusion driver operated with a high repetition rate around 10 Hz. The phase control of the SBS wave is essential for realization of the coherent beam combined output in the beam combination. For this reason, we proposed the 'self-phase control technique' of the stimulated Brillouin scattering wave, and its principle has been demonstrated experimentally over the past several years. In this work, the experiments are performed for the phase stabilization of wave-front dividing two-beam and four-beam combined systems by reducing the beam pointing fluctuation of the laser source using a beam expansion.
- PACS
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52.57.-z Laser inertial confinement
42.60.-v Laser optical systems: design and operation
28.52.Cx Fueling, heating and ignition
42.65.Hw Phase conjugation; photorefractive and Kerr effects
- Subjects
- Dates
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Issue 12 (December 2009)
Received 31 December 2008, accepted for publication 25 September 2009
Published 22 October 2009
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Wave-front dividing beam combined laser fusion driver using stimulated Brillouin scattering phase conjugation mirrors
H.J. Kong et al 2009 Nucl. Fusion 49 125002
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