S. D. Jackson and A. L. , Diode-pumped fiber lasers: A new clinical tool?, Lasers in Surgery and Medicine, vol.76, issue.3, pp.184-190, 2002.
DOI : 10.1063/1.126847

P. Werle, F. Slemr, K. Maurer, R. Kormann, R. Mücke et al., Near- and mid-infrared laser-optical sensors for gas analysis, Optics and Lasers in Engineering, vol.37, issue.2-3, pp.101-114, 2002.
DOI : 10.1016/S0143-8166(01)00092-6

J. W. Kim, J. I. Mackenzie, D. Parisi, S. Veronesi, M. Tonelli et al., Efficient in-band pumped Ho:LuLiF_4 2 ??m laser, Optics Letters, vol.35, issue.3, pp.420-422, 2010.
DOI : 10.1364/OL.35.000420

M. Kochanowicz, J. ?mojda, P. Miluski, T. Ragin, P. Jele? et al., 16th Conference on Optical Fibers and Their Applications, International Society for Optics and Photonics, pp.981605-981605, 2015.

F. Zhang, J. Yuan, Y. Liu, W. C. Wang, D. C. Yu et al., Efficient 20 ??m fluorescence in Ho^3+-doped fluorogermanate glass sensitized by Cr^3+, Optical Materials Express, vol.4, issue.7, pp.1404-1410, 2014.
DOI : 10.1364/OME.4.001404

W. A. Clarkson, N. P. Barnes, P. W. Turner, J. Nilsson, and D. C. , Hanna High-power cladding-pumped Tm-doped silica fiber laser with wavelength tuning from 1860 to, Opt. Lett, pp.27-1989, 2002.

S. D. , Jackson Cross relaxation and energy transfer upconversion processes relevant to the functioning of 2 ?m Tm3+-doped silica fibre lasers, Opt. Commun, vol.230, pp.197-203, 2004.

A. C. ,

M. Pietrzycki, M. Kochanowicz, P. Roma?czuk, J. ?mojda, P. Miluski et al., Photonics Applications in Astronomy, Communications, Industry, and High-Energy Physics Experiments International Society for Optics and Photonics, pp.1003109-1003109, 2016.

M. Kochanowicz, J. Zmojda, and D. , Dorosz Fluorosilicate and fluorophosphate superfluorescent multicore optical fibers co-doped with Nd3+

, Opt. Fiber. Technol, vol.20, pp.245-249, 2014.

O. Maalej, B. Boulard, B. Dieudonné, M. Ferrari, and M. , Downconversion in Pr3+???Yb3+ co-doped ZBLA fluoride glasses, Journal of Luminescence, vol.161, pp.198-201, 2015.
DOI : 10.1016/j.jlumin.2015.01.018
URL : https://hal.archives-ouvertes.fr/hal-02147633

G. Wang, S. Dai, J. Zhang, J. Yang, and Z. , Upconversion emissions in Yb3+???Tm3+-doped tellurite glasses excited at 976??nm, Journal of Materials Science, vol.621, issue.(13, pp.747-751, 2007.
DOI : 10.1016/S0022-3093(97)90125-3

X. Li, Q. Nie, S. Dai, T. Xu, L. Lu et al., Energy transfer and frequency upconversion in Ho3+/Yb3+ co-doped bismuth-germanate glasses, Journal of Alloys and Compounds, vol.454, issue.1-2, pp.510-514, 2008.
DOI : 10.1016/j.jallcom.2007.02.143
URL : https://hal.archives-ouvertes.fr/hal-00402549

T. Zhu, G. Tang, X. Chen, M. Sun, Q. Qian et al., co-doped lead silicate glass, International Journal of Applied Glass Science, vol.89, issue.2, pp.196-203, 2017.
DOI : 10.1063/1.1337586

C. B. Layne, W. H. Lowdermilk, and M. J. , Multiphonon relaxation of rare-earth ions in oxide glasses, Physical Review B, vol.8, issue.1, pp.10-20, 1977.
DOI : 10.1103/PhysRevB.8.980

H. Chen, Y. H. Liu, Y. F. Zhou, and Z. H. , Spectroscopic properties of Er3+-doped tellurite glass for 1.55??m optical amplifier, Journal of Alloys and Compounds, vol.397, issue.1-2, pp.286-290, 2005.
DOI : 10.1016/j.jallcom.2004.12.051

R. Li, C. Tian, Y. Tian, T. Wei, B. Li et al., Mid-infrared emission properties and energy transfer evaluation in Tm3+ doped fluorophosphate glasses, Journal of Luminescence, vol.162, issue.3, pp.58-62, 2009.
DOI : 10.1016/j.jlumin.2015.02.016

M. Li, X. Liu, Y. Guo, L. Hu, and J. , m emission, Journal of Applied Physics, vol.22, issue.24, p.243501, 2013.
DOI : 10.1016/j.jallcom.2008.02.024
URL : https://hal.archives-ouvertes.fr/hal-02057428

R. Cao, Y. Lu, Y. Tian, F. Huang, S. Xu et al.,

, Spectroscopy of thulium and holmium co-doped silicate glasses, Optical Materials Express Opt. Mater. Express, vol.6, pp.2252-2263, 2016.

X. Feng, S. Tanabe, and T. , Spectroscopic properties of erbium-doped ultraphosphate glasses for 1.5 ??m amplification, Journal of Applied Physics, vol.32, issue.7, pp.3560-3567, 2001.
DOI : 10.1063/1.120327

M. Li, Y. Guo, G. Bai, Y. Tian, L. Hu et al., ???2??m Luminescence and energy transfer characteristics in Tm3+/Ho3+co-doped silicate glass, Journal of Quantitative Spectroscopy and Radiative Transfer, vol.127, pp.70-77, 2013.
DOI : 10.1016/j.jqsrt.2013.04.025

F. Wang, Y. Tian, X. Jing, M. Cai, J. Zhang et al., Xu Effect of TeO2 addition on thermal stabilities and 2.7?m emission properties of fluoroaluminate?tellurite glass, J. Quant. Spectrosc. Ra, pp.165-93, 2015.

T. Miyakawa and D. L. , Phonon Sidebands, Multiphonon Relaxation of Excited States, and Phonon-Assisted Energy Transfer between Ions in Solids, Physical Review B, vol.4, issue.7, pp.2961-2969, 1970.
DOI : 10.1016/0038-1098(66)90029-9

L. V. Tarelho, L. Gomes, and I. M. , Determination of microscopic parameters for nonresonant energy-transfer processes in rare-earth-doped crystals, Physical Review B, vol.54, issue.67, pp.14344-14351, 1997.
DOI : 10.1103/PhysRevB.54.3825

Y. Lu, M. Cai, R. Cao, Y. Tian, F. Huang et al., Zhang Enhanced effect of Er3+ ions on 2.0 and 2.85 ?m emission of Ho3+/Yb3+ doped germanate-tellurite glass, Opt. Mater, pp.60-252, 2016.