Beam combined laser fusion driver with high power and high repetition rate using stimulated Brillouin scattering phase conjugation mirrors and self-phase-locking

Beam Combined Laser Fusion Driver using Stimulated Brillouin Scattering Phase Conjugation Mirrors

Beam combination method using stimulated Brillouin scattering phase conjugation mirrors (SBSPCMs) is a promising technique for the real laser fusion driver, which can be operated with a high repetition rate over 10 Hz. The phase control of the SBS wave is essential for realization of the coherent beam combined output. For this reason, we proposed a novel “self phase control technique” of the SB...

Beam combined high energy/high power laser system operating at a repetition rate over 10Hz for laser fusion driver using stimulated Brillouin scattering phase conjugate mirrors

The authors developed a novel method for phase controlling of a stimulated Brillouin stimulated scattering wave (SBS wave) by a single concave mirror which is the most simple way ever found. The beam combination of small lasers using the SBS-phase conjugate mirrors enables the development of the unlimitedly high energy/high power laser operating at high repetition rate that is the same as the c...

Stimulated Brillouin Scattering Phase Conjugate Mirror and its Application to Coherent Beam Combined Laser System Producing a High Energy, High Power, High Beam Quality, and High Repetition Rate Output

High-power high-repetition-rate subpicosecond monolithic Yb:KGW laser with self-mode locking.

We report on a high-power subpicosecond monolithic self-mode-locked Yb:KGW laser with the pulse repetition rate up to several tens of gigahertz. Experimental results reveal that not only the repetition rate but also the pulse width depend on the length of the laser crystal. Using a coated Yb:KGW crystal with a length of 3.36 mm, mode-locked pulses with pulse duration of 850 fs at the repetition...

High energy, single-mode, narrow-linewidth fiber laser source using stimulated Brillouin scattering beam cleanup.

We propose an original nonlinear beam cleaning fiber laser architecture to obtain high energy pulses with a good beam quality and a narrow linewidth. The output beam of a large core Er:Yb co-doped multimode fiber amplifier (M(2) approximately 6, 220 microJ) is converted into a near diffraction limited beam (M(2) = 1.6) through a stimulated Brillouin scattering injection seeded beam cleanup proc...