[1] HENDERSON S W,SUNI P J M,HALE C P et al.Coherent laser radar at 2μm using solid-state lasers[J].IEEE Transactions on Geoscience and Remote Sensing,1993,31 (1):4～15.
[2] TACZAK T M,KILLINGER D K.Development of a tunable,narrowlinewidth,CW 2.066μm Ho:YLF laser for remote sensing of atmospheric CO2 and H2O[J].Appl Opt,1998,37(36):8460～8465.
[3] WYSS C P,LUTHY W.Performance of a Tm3+:GdVO4 microchip Iaser at 1.9μm[J].Opt Commun,1998,153:63～67.
[4] WYSS C P,LUTHY W,WEBER H P et al.Emission properties of a Tm3+:GdVO4 microchip laser at 1.9μm[J].Appl Phys,1998,B67(5):545～548.
[5] MORRIS P J,LUTHY W,WEBER H P.Laser operation and spectroscopy of Tm/Ho:GdVO4[J].Opt Commun,1994,111:493～496.
[6] ZHANG X L,WANG Y Zh,YAO B Q et al.Experiment study of 2μm wavelength Tm/Ho:YLF microchip laser[J].Laser Technology,2002,26(6):407～408(in Chinese).
[7] FAL CONIERI M,LANZI A,SALVETTI G.Spectroscopic investigation of the visible and mid-infrared emission in Tm-and Ho-doped YAG and YLF crystals[A].Proc of CLEO[C].Europe:CLEO,1994.132～133.
[8] BARNES N P,FILER E D,MORRISON C A.Ho:Tm lasers:Ⅰ Theoretical[J].IEEE J Q E,1996,32(1):92～103.
[9] TACZAK T M.Development of a tunable,narrow linewidth 2.066 micrometer holmium,thulium:yttrium lithium fluoride laser for openpath remote sensing of atmospheric carbon dioxide and water vapor[D].South Florida:University of South Florida,1996.46～48.
[10] DOSHIDA M,TERAGUCHI K,OBARA M.Gain measurement and upconversion analysis in Tm3+,Ho3+ co-doped alumino-zireo-fluoride glass[J].IEEE J Q E,1995,31 (5):910～915.
[11] CHEN Y F,LAN Y P,WANG S C.Influence of energy-transfer upconversion on the performance of high-power diode-end-pumped CW lasers[J].IEEE J Q E,2000,36(5):615～619.