Tm and Tm-Hoco-doped tungsten tellurite glass single mode fiber laser

We investigated the ~2 μm spectroscopic and lasing performance of Tm 3+ and Tm 3+ -Ho 3+ co-doped tungsten tellurite glass single mode fibers with a commercial 800 nm laser diode. The double cladding single mode (SM) fibers were fabricated by using rod-in-tube method. The propagation loss of the fiber was ~2.5 dB/m at 1310 nm. The spectroscopic properties of the fibers were analyzed. A 494 mW laser operating at ~1.9 μm was achieved in a Tm 3+ doped 20 cm long fiber, the slope efficiency was 26%, and the laser beam quality factor M 2 was 1.09. A 35 mW ~2.1 μm laser output was also demonstrated in a 7 cm long of Tm 3+ -Ho 3+ co-doped tungsten tellurite SM fiber. ©2012 Optical Society of America OCIS codes: (140.3510) Lasers, fiber; (160.2290) Fiber materials; (160.5690) Rare-earth-doped materials; (160.3380) Laser materials; (140.3070) Infrared and far-infrared lasers. References and links 1. B. M. Walsh, “Review of Tm and Ho materials; spectroscopy and lasers,” Laser Phys. 19(4), 855–866 (2009). 2. B. Richards, A. Jha, Y. Tsang, D. Binks, J. Lousteau, F. Fusari, A. Lagatsky, C. Brown, and W. Sibbett, “Tellurite glass lasers operating close to 2 μm,” Laser Phys. Lett. 7(3), 177–193 (2010). 3. A. Mori, Y. Ohishi, and S. Sudo, “Erbium-doped tellurite glass fibre laser and amplifier,” Electron. Lett. 33(10), 863–864 (1997). 4. B. Richards, Y. Tsang, D. Binks, J. Lousteau, and A. Jha, “Efficient approximately 2μm Tm-doped tellurite fiber laser,” Opt. Lett. 33(4), 402–404 (2008). 5. Y. Tsang, B. Richards, D. Binks, J. Lousteau, and A. Jha, “Tm/Ho codoped tellurite fiber laser,” Opt. Lett. 33(11), 1282–1284 (2008). 6. J. S. Wang, E. M. Vogel, and E. Snitzer, “Tellurite glass: new candidate for fiber devices,” Opt. Mater. 3(3), 187–203 (1994). 7. M. R. Oermann, H. Ebendorff-Heidepriem, Y. Li, T. C. Foo, and T. M. Monro, “Index matching between passive and active tellurite glasses for use in microstructured fiber lasers: erbium doped lanthanum-tellurite glass,” Opt. Express 17(18), 15578–15584 (2009). 8. X. Feng, W. H. Loh, J. C. Flanagan, A. Camerlingo, S. Dasgupta, P. Petropoulos, P. Horak, K. E. Frampton, N. M. White, J. H. V. Price, H. N. Rutt, and D. J. Richardson, “Single-mode tellurite glass holey fiber with extremely large mode area for infrared nonlinear applications,” Opt. Express 16(18), 13651–13656 (2008). 9. A. Lin, A. Zhang, E. J. Bushong, and J. Toulouse, “Solid-core tellurite glass fiber for infrared and nonlinear applications,” Opt. Express 17(19), 16716–16721 (2009). 10. J. S. Wang, D. P. Machewirth, F. Wu, E. Snitzer, and E. M. Vogel, “Neodymium-doped tellurite single-mode fiber laser,” Opt. Lett. 19(18), 1448–1449 (1994). 11. F. E. P. dos Santos, F. C. Fávero, A. S. L. Gomes, J. Xing, Q. Chen, M. Fokine, and I. C. S. Carvalho, “Evaluation of the third-order nonlinear optical properties of tellurite glasses by thermally managed eclipse Z-scan,” J. Appl. Phys. 105(2), 024512 (2009). 12. B. Richards, Y. Tsang, D. Binks, J. Lousteau, and A. Jha, “~2 μm Tm/Yb-doped tellurite fiber laser,” J. Mater. Sci. Mater. Electron. 20(S1), 317–320 (2009). 13. K. Li, G. Zhang, and L. Hu, “Watt-level ~2 μm laser output in Tm-doped tungsten tellurite glass double-cladding fiber,” Opt. Lett. 35(24), 4136–4138 (2010). #162727 $15.00 USD Received 8 Feb 2012; revised 10 Apr 2012; accepted 10 Apr 2012; published 18 Apr 2012 (C) 2012 OSA 23 April 2012 / Vol. 20, No. 9 / OPTICS EXPRESS 10115 14. J. Wu, Z. Yao, J. Zong, A. Chavez-Pirson, N. Peyghambarian, and J. Yu, “Single frequency fiber laser at 2.05 μm based on Ho-doped germanate glass fiber,” Proc. SPIE 7195, 71951K, 71951K-7 (2009). 15. B. Richards, S. Shen, A. Jha, Y. Tsang, and D. Binks, “Infrared emission and energy transfer in Tm, Tm-Ho and Tm-Yb-doped tellurite fibre,” Opt. Express 15(11), 6546–6551 (2007).