[1] Zou X, Izumitani T. Fluorescence mechanisms and dynamics of Tm3+ singly doped and Yb3+, Tm3+ double doped glasses. J. Non Cryst. Solids, 1993, 162(1):58~67
[2] Mcaleavey F J, Macraith B D. Diode pumped thulium doped zirconium fluoride fibre as a fluorescent source for water sensing. Electron. Lett., 1995, 31(16):1379~1380
[3] Miyajima Y, Komukai T, Sugawe T. 1 W cw Tm doped fluoride fiber lasre at 1.47 μm. Electron. Lett., 1993, 29(8):660~661
[4] Percival R M, Williams J R. Highly efficient 1.064 μm upconversion pumped 1.47 μm thulium doped fluoride fibre amplifier. Electron. Lett., 1994, 30(20):1684~1685
[5] Hanna D C, Percival R M, Smart R G et al.. Efficient and tunable operation of a Tm doped fibre laser. Opt. Commun., 1990, 75(3,4):283~286
[6] Brenier A, Pedrini C, Morine B et al.. Fluorescence Mechanisms in Tm3+ singly doped and Tm3+, Ho3+ double doped indium based fluoride glasses. Phys. Rev. (B), 1990, 41(8):5364~5371
[7] Stokowski S E, Martin W E, Yarena S M. Optical and laser properties of fluorophosphate glass. J. Non Cryst. Solids, 1980, 40(1~3):481~487
[8] Chen X B, Zhang G Y, Mao H Y et al.. Research on the upconversion luminescence of Tm3+ ion in crystal and amorphous pentaphosphate material. J. Lumin., 1996, 69(2):151~160
[9] Chen X B, Zhang G Y. A compound up-conversion luminescence mechanism in crystalline TmP5O12. Opt. Commum., 1993, 102(3,4):293~296
[10] Zhang Long, Hu Hefang, Lin Fengying. Emission properties of highly doped Er3+ fluoroaluminate glass. Mater. Lett., 2001, 47(2):189~193
[11] Spector N, Reisfeld R, Boehm L. Eigenstates and radiative transition probabilities for Tm3+(4f12) in phosphate and tellurite glasses. Chem. Phys. Lett., 1977, 49(1):49~53
[12] Wright J C. Up conversion and excited state energy transfer in rare earth doped materials. Top. Appl. Phys., 1976, 15:239~255