H. T. Chai, "1.047-µm Yb:Sr5(PO4)3F energy storage optical amplifier," IEEE J. Quantum Electron 1, 67-77 (1995).Marshall C D,Payne S A,Smith L K. 1.047 mm Yb:Sr5(PO4)3F energy storage optical amplifier[J].IEEE Journal of Selected Topics in Quantum Electronics,1995,(01)...