Hostname: page-component-78c5997874-xbtfd Total loading time: 0 Render date: 2024-11-17T14:42:40.339Z Has data issue: false hasContentIssue false
  • English
  • Français

Highly repetitive high energy/power beam combination laser: IFE laser driver using independent phase control of stimulated Brillouin scattering phase conjugate mirrors and pre-pulse technique

Published online by Cambridge University Press:  02 June 2005

H.J. KONG ,
S.K. LEE  and
D.W. LEE
H.J. KONG
Affiliation:
Department of Physics, Korea Advanced Institute of Science and Technology, Daejon, South Korea
S.K. LEE
Affiliation:
Department of Physics, Korea Advanced Institute of Science and Technology, Daejon, South Korea
D.W. LEE
Affiliation:
Department of Physics, Korea Advanced Institute of Science and Technology, Daejon, South Korea
Get access Rights & Permissions [Opens in a new window]

Abstract

A beam combination laser with stimulated Brillouin scattering-phase conjugate mirrors (SBS-PCMs), which is expected to produce a high output energy and power with a repetition rate over 10 Hz, is a candidate for a practically useful laser fusion driver in the future. In order to develop the beam combination laser with SBS-PCMs, it is necessary to control the phase of each SBS wave whose phases are known as inherently random. We have proposed a new phase control technique and demonstrated experimentally that the relative phase difference between two SBS waves can be controlled to a certain value and locked to it with an accuracy less than λ/4. Additionally we have proposed and demonstrated a new technique to preserve the pulse shape of the SBS wave. Based on these experimental results, we have proposed two schemes of the new schemes for the high repetition and high energy/power beam combination laser system (laser fusion driver) using the SBS-PCMs of amplitude division and wave-front division techniques, which can operate with repetition rate over 10 Hz, in this paper.

Keywords

Beam combinationIFE laser driverPhase controlStimulated Brillouin scattering
Type
Research Article
Information
Laser and Particle Beams , Volume 23 , Issue 1 , March 2005 , pp. 107 - 111
Copyright
2005 Cambridge University Press

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Boyd, R.W., Razewski, K. & Narum P. (1990). Noise initiation of stimulated Brillouin scattering. Phys. Rev. A 42, 5514–5521.CrossRefGoogle Scholar
Hogan, W.J. et al. (1995). Energy from Inertial Fusion. Vienna: International Atomic Energy Agency, Chap. 3.Google Scholar
Kong, H.J., Lee, J.Y., Shin, Y.S., Byun, J.O., Park, H.S. & Kim, H. (1997). Beam recombination characteristics in array laser amplification using stimulated Brillouin scattering phase conjugation. Opt. Rev. 4, 277–283.Google Scholar
Kong, H.J., Shin, Y.S. & Kim, H. (1999). Beam combination characteristics in an array using stimulated Brillouin scattering phase conjugation mirrors considering partial coherency between the beams. Fus. Engin. Des. 44, 407–417.Google Scholar
Kong, H.J., Beak, D.H. & Lee, S.K. (2005). Pre-pulse technique for preserving the wave form of the stimulated Brillouin scattering. Paper in preparation.Google Scholar
Kong, H.J., Lee, S.K., Lee, D.W. & Guo, H. (2004). Phase control of stimulated Brillouin scattering phase conjugate mirrors by a self-generated density modulation. Appl. Phys. Lett. Submitted.Google Scholar
Loree, T.R., Watkins, D.E., Johnson, T.M., Kurnit, N.A. & Fisher, R.A. (1987). Phase locking two beams by means of seeded Brillouin scattering. Opt. Lett. 12, 178–180.Google Scholar
Lu, J., Lu, J., Murai, T., Takaichi, K., Uematsu, T., Xu, J., Ueda, K., Yagi, H., Yanagitani, T. & Kaminskii, A.A. (2002). 36-W diode-pumped continuous-wave 1319 nm Nd:YAG ceramic laser. Opt. Lett. 27, 1120–1122.Google Scholar
Rockwell, D.A. & Giuliano, C.R. (1986). Coherent coupling of laser gain media using phase conjugation. Opt. Lett. 11, 147–149.Google Scholar
Rockwell, D.A. (1988). A review of phase-conjugate solid state lasers. IEEE J. Quan. Elect. 24, 1124–1140.CrossRefGoogle Scholar
Yoshida, H., Kmetik, V., Fujita, H., Nakatsuka, M., Yamanaka, T. & Yoshida, K. (1997). Heavy fluorocarbon liquids for a phase-conjugated stimulated Brillouin scattering mirror. Appl. Opt. 36, 373–3744.Google Scholar