We demonstrate a laser diode end-pumped helium gas-cooled multislab Nd:glass laser amplifier. The design and thermal management of the proposed laser amplifier are discussed. The thermally induced wavefront aberration...We demonstrate a laser diode end-pumped helium gas-cooled multislab Nd:glass laser amplifier. The design and thermal management of the proposed laser amplifier are discussed. The thermally induced wavefront aberration of the slabs was also measured and compared with simulation results. A small-signal single-pass longitudinal gain of 1.8 was measured with a pump energy of 7.3 J. With an injected seed energy of 0.6 m J, the output energy from the amplifier reached 0.5 J at 0.2 Hz and 0.43 J at 0.5 Hz in a multipass extraction geometry, thus demonstrating the feasibility of diode-pumped,high-energy lasers with direct gas cooling.展开更多
A new 10 GW tunable Nd-glass laser system with narrowed linewidth is reported. Thespecialities, mainly concerning physical ideas, optical path scheme and critical techniques,and output properties of this system are gi...A new 10 GW tunable Nd-glass laser system with narrowed linewidth is reported. Thespecialities, mainly concerning physical ideas, optical path scheme and critical techniques,and output properties of this system are given.展开更多
基金supported by the Shanghai Science and Technology Foundation for Young Scholars(Grant No.17YF1429600)the National Natural Science Foundation of China(Grant No.61705242)
文摘We demonstrate a laser diode end-pumped helium gas-cooled multislab Nd:glass laser amplifier. The design and thermal management of the proposed laser amplifier are discussed. The thermally induced wavefront aberration of the slabs was also measured and compared with simulation results. A small-signal single-pass longitudinal gain of 1.8 was measured with a pump energy of 7.3 J. With an injected seed energy of 0.6 m J, the output energy from the amplifier reached 0.5 J at 0.2 Hz and 0.43 J at 0.5 Hz in a multipass extraction geometry, thus demonstrating the feasibility of diode-pumped,high-energy lasers with direct gas cooling.
文摘A new 10 GW tunable Nd-glass laser system with narrowed linewidth is reported. Thespecialities, mainly concerning physical ideas, optical path scheme and critical techniques,and output properties of this system are given.
