Current Optics and Photonics

Optical Society of Korea (한국광학회)
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All-fiber Tm-Ho Codoped Laser Operating at 1700 nm

  • Park, Jaedeok (Department of Energy Systems Research, Ajou University) ;
  • Ryu, Siheon (Department of Energy Systems Research, Ajou University) ;
  • Yeom, Dong-Il (Department of Energy Systems Research, Ajou University)
  • Received : 2018.05.18
  • Accepted : 2018.07.03
  • Published : 2018.08.25
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Abstract

We demonstrate continuous-wave operation of an all-fiber thulium-holmium codoped laser operating at a wavelength of 1706.3 nm. To realize laser operation in the short-wavelength region of the emission-band edge of thulium in silica fiber, we employ fiber Bragg gratings having resonant reflection at a wavelength around 1700 nm as a wavelength-selective mirror in an all-fiber cavity scheme. We first examine the performance of the laser by adjusting the central wavelength of the in-band pump source. Although a pump source possessing a longer wavelength is observed to provide reduced laser threshold power and increased slope efficiency, because of the characteristics of spectral response in the gain fiber, we find that the optimal pump wavelength is 1565 nm to obtain maximum laser output power for a given system. We further explore the properties of the laser by varying the fiber gain length from 1 m to 1.4 m, for the purpose of power scaling. It is revealed that the laser shows optimal performance in terms of output power and slope efficiency at a gain length of 1.3 m, where we obtain a maximum output power of 249 mW for an applied pump power of 2.1 W. A maximum slope efficiency is also estimated to be 23% under these conditions.

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References

  1. R. J. Mears, L. Reekie, I. M. Jauncey, and D. N. Payne, "Low-noise erbium-doped fibre amplifier operating at $1.54{\mu}m$," Electron. Lett. 23, 1026 (1987). https://doi.org/10.1049/el:19870719
  2. B. Walsh, "Review of Tm and Ho materials; spectroscopy and lasers," Laser Phys. 19, 855-866 (2009). https://doi.org/10.1134/S1054660X09040446
  3. R. Targ, B. C. Steakley, J. G. Hawley, L. L. Ames, P. Forney, D. Swanson, R. Stone, R. G. Otto, V. Zarifis, P. Brockman, R. S. Calloway, S. H. Klein, and P. A. Robinson," Coherent lidar airborne wind sensor II: flight-test results at 2 and $10\;{\mu}m$," Appl. Opt. 35, 7117-7127 (1996). https://doi.org/10.1364/AO.35.007117
  4. N. P. Barnes, B. M. Walsh, D. J. reichle, and R. J. DeYong, "Tm:fiber lasers for remote sensing," Opt. Mater. 31, 1061-1064 (2009). https://doi.org/10.1016/j.optmat.2007.11.037
  5. F. Hanson, P. Poirier, D. Haddock, D. Kichura, and M. Lasher, "Laser propagating at $1.56\;{\mu}m$ and $3.60\;{\mu}m$ in maritime environments," Appl. Opt. 48, 4149-4157 (2009). https://doi.org/10.1364/AO.48.004149
  6. R. R. Anderson, W. Farinelli, H. Laubach, D. Manstein, A. N. Yaroslavsky, J. Gubeli 3rd, K. Jordan, G. R. Neil, M. Shinn, W. Chandler, G. P. Williams, S. V. Benson, D. R. Douglas, and H. F. Dylla, "Selective photothermolysis of lipid-rich tissues: a free electron laser study," Lasers Surg. Med. 38, 913-919 (2006) https://doi.org/10.1002/lsm.20393
  7. V. V. Alexander, K. Ke, Z. Xu, M. N. Islam, M. J. Freeman, B. Pitt, M. J. Welsh, and J. S. Orringer, "Photothermolysis of sebaceous glands in human skin ex vivo with a 1,708 nm Raman fiber laser and contact cooling," Lasers Surg. Med. 43, 470-480 (2011). https://doi.org/10.1002/lsm.21085
  8. S. Firstov, S. Alyshev, M. Melkumov, K. Riumkin, A. Shubin, and E. Dianov, "Bismuth-doped optical fibers and fiber lasers for a spectral region of 1600-1800 nm," Opt. Lett. 39, 6927-6930 (2014). https://doi.org/10.1364/OL.39.006927
  9. E. M. Dianov, "Bismuth-doped optical fibers: A challenging active medium for near-IR lasers and optical amplifiers," Light: Sci. Appl. 1, e12 (2012) https://doi.org/10.1038/lsa.2012.12
  10. S. V. Firstov, S. V. Alyshev, K. E. Riumkin, M. A. Melkumov, O. I. Medvedkov, and E. M. Dianov, "Watt-level, continuous-wave bismuth-doped all-fiber laser operating at $1.7\;{\mu}m$," Opt. Lett. 40, 4360-4363 (2015). https://doi.org/10.1364/OL.40.004360
  11. S. V. Firstov, S. V. Alyshev, K. E. Riumkin, V. F. Khopin, A. N. Guryanov, M. A. Melkumov, and E. M. Dianov, "A 23-dB bismuth-doped optical fiber amplifier for a 1700-nm band," Sci. Rep. 6, 28939 (2016) https://doi.org/10.1038/srep28939
  12. T. Noronen, S. Firstov, E. Dianov, and O. G. Okhotnikov, "1700 nm dispersion managed mode-locked bismuth fiber laser," Sci. Rep. 6, 24876 (2016) https://doi.org/10.1038/srep24876
  13. J. M. O. Daniel, N. Simakov, M. Tokurakawa, M. Ibsen, and W. A. Clarkson, "Ultra-short wavelength operation of a thulium fibre laser in the 1660-1750 nm wavelength band," Opt. exp. 23, 18269-18276 (2015) https://doi.org/10.1364/OE.23.018269
  14. T. Noronen, O. Okhotnikov, and R. Gumenyuk, "Electronically tunable thulium-holmium mode-loked fiber laser for the 1700-1800 nm wavelength band," Opt. Exp. 24, 14703-14708 (2016) https://doi.org/10.1364/OE.24.014703
  15. Z. Li, Y. Jung, J. M. O. Daniel, N. Simakov, M. Tokurakawa, P. C. Shardlow, D. Jain, J. K. Sahu, A. M. Heidt, W. A. Clarkson, S. U. Alam, and D. J. Richardson, "Exploiting the short wavelength gain of silica-based thulium-doped fiber amplifiers," Opt. Lett. 41, 2197-2200 (2016). https://doi.org/10.1364/OL.41.002197