Efficient Yb laser fibers with low photodarkening by optimization of the core composition

Optics Express

Volumn 16, Issue 20, 2008, Pages 15540-15545

  Jetschke, Sylvia ^a   Unger, Sonja ^a   Schwuchow, Anka ^a   Leich, Martin ^a   Kirchhof, Johannes ^a  

^a LEIBNIZ INSTITUTE OF PHOTONIC TECHNOLOGY   (Germany)

Author keywords

[No Author keywords available]

Indexed keywords

COLOR CENTERS; ENERGY TRANSFER;

CLADDING PUMPING; COOPERATIVE ENERGY TRANSFERS; COOPERATIVE LUMINESCENCE; CORE COMPOSITION; LASER EFFICIENCY; LASER OUTPUT POWER; NUMERICAL APERTURE; SLOPE EFFICIENCIES;

YTTERBIUM;

ALUMINUM; ION; PHOSPHORUS; YTTERBIUM;

ARTICLE; CHEMISTRY; EQUIPMENT DESIGN; FLUORESCENCE; INFRARED RADIATION; KINETICS; LASER; LIGHT; OPTICS;

ALUMINUM; EQUIPMENT DESIGN; FLUORESCENCE; INFRARED RAYS; IONS; KINETICS; LASERS; LIGHT; OPTICS; PHOSPHORUS; YTTERBIUM;

EID: 53249144439     PISSN: None     EISSN: 10944087     Source Type: Journal    
DOI: 10.1364/OE.16.015540     Document Type: Article

References (15)

1. J. Koponen, M. Soderlund, H. J. Hoffman, D. Kliner, and J. Koplow, "Photodarkening Measurements in Large-Mode-Area Fibers," Proc. SPIE 6453, 64531E-1-11 (2007).
2. A. V. Shubin, M. V. Yashkov, M. A. Melkumov, S. A. Smirnow, I. A. Bufetov, and E. M. Dianov, "Photodarkening of aluminosilicate and phosphosilicate Yb-doped fibers," in Conf. Digest of CLEO Europe-EQEC 2007, CJ3-1-THU (2007).
3. S. Jetschke, S. Unger, U. Ropke, and J. Kirchhof, "Photodarkening in Yb doped fibers: experimental evidence of equilibrium states depending on the pump power," Opt. Express 15, .14838-14843 (2007).
4. M. J. Soderlund, J. J. Montiel i Ponsoda, S. K. T. Tammela, K. Ylä-Jarkko, A. Salokatve, and S. Honkanen, "Mode-induced transverse photodarkening loss variations in large-mode-area ytterbium doped silica fibers," Opt. Express 16, .10633-10640 (2008).
5. M. Engholm, L. Norin, andD. Aberg, "Strong UV absorption and visible luminescence in ytterbium-doped aluminosilicate glass under UV excitation," Opt. Lett. 32, 3352-3354 (2007).
6. M. Engholm and L. Norin, "Preventing photodarkening in ytterbium-doped high power fiber lasers; correlation to the UV-transparency of the core glass," Opt. Express 16, 1260-1268 (2008).
7. S. Yoo, C. Basu, A. J. Boland, C. Sones, J. Nilsson, J. K. Sahu, andD. Payne, "Photodarkening in Yb-doped aluminosilicate fibers induced by 488 nm irradiation," Opt. Lett. 32, 1626-1628 (2007).
8. P. D. Dragic, C. G. Carlson, and A. Croteau, "Characterization of defect luminescence in Yb doped silica fibers: part I: NBOHC," Opt. Express 16, 4688-4697 (2008).
9. T. Kitabayashi, M. Ikeda, M. Nakai, T. Sakai, K. Himeno, and K. Ohashi, "Population Inversion Factor Dependence of Photodarkening of Yb-doped Fibers and its Suppression by Highly Aluminium Doping," in OFC/NFOE Conference on CD-ROM (Opt. Society of America, Washington, DC, 2006), OThC5 (2006).
10. S. Unger, A. Schwuchow, S. Jetschke, V. Reichel, A. Scheffel, J. Kirchhof, "Optical properties of Yb-doped laser fibers in dependence on codopants and preparation conditions," Proc. SPIE 6890, 16 (2008).
11. 3," Quantum Electron. 34, 843-848 (2004).
12. J. Kirchhof, S. Unger, A. Schwuchow, S. Grimm, and V. Reichel, "Materials for high-power fiber lasers," J. Non-Cryst. Solids 352, 2399-2403 (2006).
13. J. Kirchhof, S. Unger, and A. Schwuchow, "Properties of Yb-doped materials for solid and microstructured high power fiber lasers", in Proceedings of ICMAT 2007 Symposium on Microstructured and Nanostructured Optical Fibers, Singapore, 1-6 July, 2007.
14. S. Unger, A. Schwuchow, J. Dellith, and J. Kirchhof, "Codoped materials for high power fiber lasers - diffusion behaviour and optical properties," Proc. SPIE 6469, 13 (2007).
15. J. Kirchhof, S. Unger, A. Schwuchow, S. Jetschke, and B. Knappe, "Dopant interactions in high-power laser fibers," Proc. SPIE 5723, 261-272 (2005).