High Energy, High Efficiency Nd: Glass Regenerative Amplifier


Article Preview

To obtain high energy, high efficiency Nd: glass preamplifier used in certain host device, a Nd:glass regenerative amplifier system has been designed. By adjusting the single pass gain and carefully optimizing the cavity mode, the small-scale self-focusing effect in the gain medium was effectively controlled. Maximum pulse energy of 21mJ, pulse width of 2.6ns was obtained at the repetition frequency of 1Hz, corresponding to a high optical to optical conversion efficiency of 11% and amplification ratio of 108. The pulse to pulse energy stability was < 2% rms during 2 h continous operation. The laser has a good beam quality of M2=1.5. The spectrum was measured to be at center wavelength of 1052.915nm.



Edited by:

Kexiang Wei and Yuhang Yang




X.F. Wang et al., "High Energy, High Efficiency Nd: Glass Regenerative Amplifier", Advanced Materials Research, Vol. 529, pp. 105-109, 2012

Online since:

June 2012




[1] Jiang Z. H., ICF laser glasses. Chinese J. Laser, 33 (2006), 1265-1276.

[2] SolarzR. Beach R., Bibeau C., CampbellE., KrupkeW., MarshallC., PageR., PaisnerJ., PayneS., PerryM., SchaeferK., and ScheibnerK., Current research directions and topics in the laser directorate at Lawrence Livermore National Laboratory. Laser Phy., 7(1997).

[3] Li Y., Jun D., HoP. T., Chi H. L., and BurdgeG. L., An actively mode-locked continuous wave Nd: phosphate glass laser oscillator and regenerative amplifier. IEEE J. Quantum Eectronics, 24(1988), 418-426.

[4] SantaunB, and RobertL. B., Short pulse injection seeding of Q-switched Nd: glass laser oscillators-theory and experiment[J]. IEEE J. Quantum Eectronics, 26(1990), 149-157.

DOI: https://doi.org/10.1109/3.44928

[5] MosesE. I., BoydR. N., RemingtonB. A., KeaneC. J., and Ayat R. A., The National Ignition Facility: ushering in a new age for high energy density science. Physics Pla., 16(2009), 041006.

[6] ParamitaD., KailashC. G. and JayantK. F., Nd: glass regenerative amplifier with increased bandwidth and high output energy for chirped pulse amplification systems. Appl. Opt., 49(2010): 1699~1606.

DOI: https://doi.org/10.1364/ao.49.001698

[7] BagnoudV. LuceJ., VideauL., and RouyerC., Diode-pumped regenerative amplifier delivering 100-mJ single-mode laser pulses. Opt. Lett., 26(2001), 337-339.

DOI: https://doi.org/10.1364/ol.26.000337

[8] Li M.Z. YangJ. M., Qin X. W., SuiZ., Liang Y., Zhang X. M., The technology syudy on laser diode-pumped regenerative amplifier. High Power laser and Particle Beams, 11(1999), 543-546.

[9] Wang J. F., The high stability of Nd: glass regenerative amplifier technology research . Shanghai Institute of Optics and Fine MechanicsPhD thesis in china, (2008).