Abstract

We report the fabrication of ytterbium (Yb)-sensitized thulium (Tm)-doped air-clad fibers for near-IR laser applications. The effect of change in the concentration ratio of Yb and Tm was studied using three such fibers, which were pumped with a 980nm laser diode and subsequently characterized to test their lasing properties. Lasing at around the 2μm wavelength was obtained using a simple cavity design, and improved performance was seen for increased YbTm ratio.

© 2011 Optical Society of America

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  1. W. J. Wadsworth, J. C. Knight, W. H. Reeves, P. St. J. Russell, and J. Arriaga, “Yb3+-doped photonic crystal fiber laser,” Electron. Lett. 36, 1452–1454 (2000).
    [CrossRef]
  2. T. Søndergaard, “Photonic crystal distributed feedback fiber lasers with Bragg gratings,” J. Lightwave Technol. 18, 589–597 (2000).
    [CrossRef]
  3. H. R. Müller, J. Kirchhof, V. Reichel, and S. Unger, “Fibers for high-power lasers and amplifiers,” C. R. Physique 7, 154–162(2006).
    [CrossRef]
  4. P. Leproux, S. Février, V. Doya, P. Roy, and D. Pagnoux, “Modeling and optimization of double-clad fiber amplifiers using chaotic propagation of the pump,” Opt. Fiber Technol. 7, 324–339 (2001).
    [CrossRef]
  5. W. J. Wadsworth, R. M. Percival, G. Bouwmans, J. C. Knight, and P. St. J. Russell, “High power air-clad photonic crystal fiber laser,” Opt. Express 11, 48–53 (2003).
    [CrossRef] [PubMed]
  6. S. D. Jackson and T. A. King, “High-power diode-cladding-pumped Tm-doped silica fiber laser,” Opt. Lett. 23, 1462–1464(1998).
    [CrossRef]
  7. D. C. Hanna, I. R. Perry, J. R. Lincoln, and J. E. Townsend, “A 1 watt thulium-doped cw fiber laser operating at 2 μm,” Opt. Commun. 80, 52–56 (1990).
    [CrossRef]
  8. T. Yamamoto, Y. Miyajima, and T. Komukai, “1.9 μmTm-doped silica fiber laser pumped at 1.57 μm,” Electron. Lett. 30, 220–221 (1994).
    [CrossRef]
  9. 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 2090 nm,” Opt. Lett. 27, 1989–1991 (2002).
    [CrossRef]
  10. S. D. Jackson, “Power scaling method for 2 μm diode-cladding-pumped Tm3+-doped silica fiber lasers that uses Yb3+ codoping,” Opt. Lett. 28, 2192–2194 (2003).
    [CrossRef] [PubMed]
  11. Y. Jeong, P. Dupriez, J. K. Sahu, J. Nilsson, D. Y. Shen, W. A. Clarkson, and S. D. Jackson, “Power scaling of 2 μmytterbium-sensitized thulium-doped silica fiber laser diode-pumped at 975 nm,” Electron. Lett. 41, 173–174 (2005).
    [CrossRef]
  12. A. Pal, A. Dhar, S. Das, S. Y. Chen, T. Sun, R. Sen, and K. T. V. Grattan, “Ytterbium-sensitized thulium-doped fiber laser in the near-IR with 980 nm pumping,” Opt. Express 18, 5068–5074 (2010).
    [CrossRef] [PubMed]
  13. K. Furusawa, A. Malinowski, J. H. V. Price, T. M. Monro, J. K. Sahu, J. Nilsson, and D. J. Richardson, “Cladding pumped ytterbium-doped fiber laser with holey inner and outer cladding,” Opt. Express 9, 714–720 (2001).
    [CrossRef] [PubMed]
  14. R. Paschotta, J. Nilsson, P. R. Barber, J. E. Caplen, A. C. Tropper, and D. C. Hanna, “Lifetime quenching in Yb doped fibers,” Opt. Commun. 136, 375–378 (1997).
    [CrossRef]
  15. K. P. HansenJ. Broeng, P. M. W. Skovgaard, J. R. Folkenberg, M. D. Nielsen, A. Petersson, T. P. Hansen, C. Jakobsen, H. R. Simonsen, J. Limpert, and F. Salin, “High power photonic crystal fiber lasers: design, handling and sub-assemblies,” in Photonics West (SPIE, 2005), pp. 273–283.

2010 (1)

2006 (1)

H. R. Müller, J. Kirchhof, V. Reichel, and S. Unger, “Fibers for high-power lasers and amplifiers,” C. R. Physique 7, 154–162(2006).
[CrossRef]

2005 (1)

Y. Jeong, P. Dupriez, J. K. Sahu, J. Nilsson, D. Y. Shen, W. A. Clarkson, and S. D. Jackson, “Power scaling of 2 μmytterbium-sensitized thulium-doped silica fiber laser diode-pumped at 975 nm,” Electron. Lett. 41, 173–174 (2005).
[CrossRef]

2003 (2)

2002 (1)

2001 (2)

P. Leproux, S. Février, V. Doya, P. Roy, and D. Pagnoux, “Modeling and optimization of double-clad fiber amplifiers using chaotic propagation of the pump,” Opt. Fiber Technol. 7, 324–339 (2001).
[CrossRef]

K. Furusawa, A. Malinowski, J. H. V. Price, T. M. Monro, J. K. Sahu, J. Nilsson, and D. J. Richardson, “Cladding pumped ytterbium-doped fiber laser with holey inner and outer cladding,” Opt. Express 9, 714–720 (2001).
[CrossRef] [PubMed]

2000 (2)

W. J. Wadsworth, J. C. Knight, W. H. Reeves, P. St. J. Russell, and J. Arriaga, “Yb3+-doped photonic crystal fiber laser,” Electron. Lett. 36, 1452–1454 (2000).
[CrossRef]

T. Søndergaard, “Photonic crystal distributed feedback fiber lasers with Bragg gratings,” J. Lightwave Technol. 18, 589–597 (2000).
[CrossRef]

1998 (1)

1997 (1)

R. Paschotta, J. Nilsson, P. R. Barber, J. E. Caplen, A. C. Tropper, and D. C. Hanna, “Lifetime quenching in Yb doped fibers,” Opt. Commun. 136, 375–378 (1997).
[CrossRef]

1994 (1)

T. Yamamoto, Y. Miyajima, and T. Komukai, “1.9 μmTm-doped silica fiber laser pumped at 1.57 μm,” Electron. Lett. 30, 220–221 (1994).
[CrossRef]

1990 (1)

D. C. Hanna, I. R. Perry, J. R. Lincoln, and J. E. Townsend, “A 1 watt thulium-doped cw fiber laser operating at 2 μm,” Opt. Commun. 80, 52–56 (1990).
[CrossRef]

Arriaga, J.

W. J. Wadsworth, J. C. Knight, W. H. Reeves, P. St. J. Russell, and J. Arriaga, “Yb3+-doped photonic crystal fiber laser,” Electron. Lett. 36, 1452–1454 (2000).
[CrossRef]

Barber, P. R.

R. Paschotta, J. Nilsson, P. R. Barber, J. E. Caplen, A. C. Tropper, and D. C. Hanna, “Lifetime quenching in Yb doped fibers,” Opt. Commun. 136, 375–378 (1997).
[CrossRef]

Barnes, N. P.

Bouwmans, G.

Broeng, J.

K. P. HansenJ. Broeng, P. M. W. Skovgaard, J. R. Folkenberg, M. D. Nielsen, A. Petersson, T. P. Hansen, C. Jakobsen, H. R. Simonsen, J. Limpert, and F. Salin, “High power photonic crystal fiber lasers: design, handling and sub-assemblies,” in Photonics West (SPIE, 2005), pp. 273–283.

Caplen, J. E.

R. Paschotta, J. Nilsson, P. R. Barber, J. E. Caplen, A. C. Tropper, and D. C. Hanna, “Lifetime quenching in Yb doped fibers,” Opt. Commun. 136, 375–378 (1997).
[CrossRef]

Chen, S. Y.

Clarkson, W. A.

Y. Jeong, P. Dupriez, J. K. Sahu, J. Nilsson, D. Y. Shen, W. A. Clarkson, and S. D. Jackson, “Power scaling of 2 μmytterbium-sensitized thulium-doped silica fiber laser diode-pumped at 975 nm,” Electron. Lett. 41, 173–174 (2005).
[CrossRef]

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 2090 nm,” Opt. Lett. 27, 1989–1991 (2002).
[CrossRef]

Das, S.

Dhar, A.

Doya, V.

P. Leproux, S. Février, V. Doya, P. Roy, and D. Pagnoux, “Modeling and optimization of double-clad fiber amplifiers using chaotic propagation of the pump,” Opt. Fiber Technol. 7, 324–339 (2001).
[CrossRef]

Dupriez, P.

Y. Jeong, P. Dupriez, J. K. Sahu, J. Nilsson, D. Y. Shen, W. A. Clarkson, and S. D. Jackson, “Power scaling of 2 μmytterbium-sensitized thulium-doped silica fiber laser diode-pumped at 975 nm,” Electron. Lett. 41, 173–174 (2005).
[CrossRef]

Février, S.

P. Leproux, S. Février, V. Doya, P. Roy, and D. Pagnoux, “Modeling and optimization of double-clad fiber amplifiers using chaotic propagation of the pump,” Opt. Fiber Technol. 7, 324–339 (2001).
[CrossRef]

Folkenberg, J. R.

K. P. HansenJ. Broeng, P. M. W. Skovgaard, J. R. Folkenberg, M. D. Nielsen, A. Petersson, T. P. Hansen, C. Jakobsen, H. R. Simonsen, J. Limpert, and F. Salin, “High power photonic crystal fiber lasers: design, handling and sub-assemblies,” in Photonics West (SPIE, 2005), pp. 273–283.

Furusawa, K.

Grattan, K. T. V.

Hanna, D. C.

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 2090 nm,” Opt. Lett. 27, 1989–1991 (2002).
[CrossRef]

R. Paschotta, J. Nilsson, P. R. Barber, J. E. Caplen, A. C. Tropper, and D. C. Hanna, “Lifetime quenching in Yb doped fibers,” Opt. Commun. 136, 375–378 (1997).
[CrossRef]

D. C. Hanna, I. R. Perry, J. R. Lincoln, and J. E. Townsend, “A 1 watt thulium-doped cw fiber laser operating at 2 μm,” Opt. Commun. 80, 52–56 (1990).
[CrossRef]

Hansen, K. P.

K. P. HansenJ. Broeng, P. M. W. Skovgaard, J. R. Folkenberg, M. D. Nielsen, A. Petersson, T. P. Hansen, C. Jakobsen, H. R. Simonsen, J. Limpert, and F. Salin, “High power photonic crystal fiber lasers: design, handling and sub-assemblies,” in Photonics West (SPIE, 2005), pp. 273–283.

Hansen, T. P.

K. P. HansenJ. Broeng, P. M. W. Skovgaard, J. R. Folkenberg, M. D. Nielsen, A. Petersson, T. P. Hansen, C. Jakobsen, H. R. Simonsen, J. Limpert, and F. Salin, “High power photonic crystal fiber lasers: design, handling and sub-assemblies,” in Photonics West (SPIE, 2005), pp. 273–283.

Jackson, S. D.

Y. Jeong, P. Dupriez, J. K. Sahu, J. Nilsson, D. Y. Shen, W. A. Clarkson, and S. D. Jackson, “Power scaling of 2 μmytterbium-sensitized thulium-doped silica fiber laser diode-pumped at 975 nm,” Electron. Lett. 41, 173–174 (2005).
[CrossRef]

S. D. Jackson, “Power scaling method for 2 μm diode-cladding-pumped Tm3+-doped silica fiber lasers that uses Yb3+ codoping,” Opt. Lett. 28, 2192–2194 (2003).
[CrossRef] [PubMed]

S. D. Jackson and T. A. King, “High-power diode-cladding-pumped Tm-doped silica fiber laser,” Opt. Lett. 23, 1462–1464(1998).
[CrossRef]

Jakobsen, C.

K. P. HansenJ. Broeng, P. M. W. Skovgaard, J. R. Folkenberg, M. D. Nielsen, A. Petersson, T. P. Hansen, C. Jakobsen, H. R. Simonsen, J. Limpert, and F. Salin, “High power photonic crystal fiber lasers: design, handling and sub-assemblies,” in Photonics West (SPIE, 2005), pp. 273–283.

Jeong, Y.

Y. Jeong, P. Dupriez, J. K. Sahu, J. Nilsson, D. Y. Shen, W. A. Clarkson, and S. D. Jackson, “Power scaling of 2 μmytterbium-sensitized thulium-doped silica fiber laser diode-pumped at 975 nm,” Electron. Lett. 41, 173–174 (2005).
[CrossRef]

King, T. A.

Kirchhof, J.

H. R. Müller, J. Kirchhof, V. Reichel, and S. Unger, “Fibers for high-power lasers and amplifiers,” C. R. Physique 7, 154–162(2006).
[CrossRef]

Knight, J. C.

W. J. Wadsworth, R. M. Percival, G. Bouwmans, J. C. Knight, and P. St. J. Russell, “High power air-clad photonic crystal fiber laser,” Opt. Express 11, 48–53 (2003).
[CrossRef] [PubMed]

W. J. Wadsworth, J. C. Knight, W. H. Reeves, P. St. J. Russell, and J. Arriaga, “Yb3+-doped photonic crystal fiber laser,” Electron. Lett. 36, 1452–1454 (2000).
[CrossRef]

Komukai, T.

T. Yamamoto, Y. Miyajima, and T. Komukai, “1.9 μmTm-doped silica fiber laser pumped at 1.57 μm,” Electron. Lett. 30, 220–221 (1994).
[CrossRef]

Leproux, P.

P. Leproux, S. Février, V. Doya, P. Roy, and D. Pagnoux, “Modeling and optimization of double-clad fiber amplifiers using chaotic propagation of the pump,” Opt. Fiber Technol. 7, 324–339 (2001).
[CrossRef]

Limpert, J.

K. P. HansenJ. Broeng, P. M. W. Skovgaard, J. R. Folkenberg, M. D. Nielsen, A. Petersson, T. P. Hansen, C. Jakobsen, H. R. Simonsen, J. Limpert, and F. Salin, “High power photonic crystal fiber lasers: design, handling and sub-assemblies,” in Photonics West (SPIE, 2005), pp. 273–283.

Lincoln, J. R.

D. C. Hanna, I. R. Perry, J. R. Lincoln, and J. E. Townsend, “A 1 watt thulium-doped cw fiber laser operating at 2 μm,” Opt. Commun. 80, 52–56 (1990).
[CrossRef]

Malinowski, A.

Miyajima, Y.

T. Yamamoto, Y. Miyajima, and T. Komukai, “1.9 μmTm-doped silica fiber laser pumped at 1.57 μm,” Electron. Lett. 30, 220–221 (1994).
[CrossRef]

Monro, T. M.

Müller, H. R.

H. R. Müller, J. Kirchhof, V. Reichel, and S. Unger, “Fibers for high-power lasers and amplifiers,” C. R. Physique 7, 154–162(2006).
[CrossRef]

Nielsen, M. D.

K. P. HansenJ. Broeng, P. M. W. Skovgaard, J. R. Folkenberg, M. D. Nielsen, A. Petersson, T. P. Hansen, C. Jakobsen, H. R. Simonsen, J. Limpert, and F. Salin, “High power photonic crystal fiber lasers: design, handling and sub-assemblies,” in Photonics West (SPIE, 2005), pp. 273–283.

Nilsson, J.

Y. Jeong, P. Dupriez, J. K. Sahu, J. Nilsson, D. Y. Shen, W. A. Clarkson, and S. D. Jackson, “Power scaling of 2 μmytterbium-sensitized thulium-doped silica fiber laser diode-pumped at 975 nm,” Electron. Lett. 41, 173–174 (2005).
[CrossRef]

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 2090 nm,” Opt. Lett. 27, 1989–1991 (2002).
[CrossRef]

K. Furusawa, A. Malinowski, J. H. V. Price, T. M. Monro, J. K. Sahu, J. Nilsson, and D. J. Richardson, “Cladding pumped ytterbium-doped fiber laser with holey inner and outer cladding,” Opt. Express 9, 714–720 (2001).
[CrossRef] [PubMed]

R. Paschotta, J. Nilsson, P. R. Barber, J. E. Caplen, A. C. Tropper, and D. C. Hanna, “Lifetime quenching in Yb doped fibers,” Opt. Commun. 136, 375–378 (1997).
[CrossRef]

Pagnoux, D.

P. Leproux, S. Février, V. Doya, P. Roy, and D. Pagnoux, “Modeling and optimization of double-clad fiber amplifiers using chaotic propagation of the pump,” Opt. Fiber Technol. 7, 324–339 (2001).
[CrossRef]

Pal, A.

Paschotta, R.

R. Paschotta, J. Nilsson, P. R. Barber, J. E. Caplen, A. C. Tropper, and D. C. Hanna, “Lifetime quenching in Yb doped fibers,” Opt. Commun. 136, 375–378 (1997).
[CrossRef]

Percival, R. M.

Perry, I. R.

D. C. Hanna, I. R. Perry, J. R. Lincoln, and J. E. Townsend, “A 1 watt thulium-doped cw fiber laser operating at 2 μm,” Opt. Commun. 80, 52–56 (1990).
[CrossRef]

Petersson, A.

K. P. HansenJ. Broeng, P. M. W. Skovgaard, J. R. Folkenberg, M. D. Nielsen, A. Petersson, T. P. Hansen, C. Jakobsen, H. R. Simonsen, J. Limpert, and F. Salin, “High power photonic crystal fiber lasers: design, handling and sub-assemblies,” in Photonics West (SPIE, 2005), pp. 273–283.

Price, J. H. V.

Reeves, W. H.

W. J. Wadsworth, J. C. Knight, W. H. Reeves, P. St. J. Russell, and J. Arriaga, “Yb3+-doped photonic crystal fiber laser,” Electron. Lett. 36, 1452–1454 (2000).
[CrossRef]

Reichel, V.

H. R. Müller, J. Kirchhof, V. Reichel, and S. Unger, “Fibers for high-power lasers and amplifiers,” C. R. Physique 7, 154–162(2006).
[CrossRef]

Richardson, D. J.

Roy, P.

P. Leproux, S. Février, V. Doya, P. Roy, and D. Pagnoux, “Modeling and optimization of double-clad fiber amplifiers using chaotic propagation of the pump,” Opt. Fiber Technol. 7, 324–339 (2001).
[CrossRef]

Russell, P. St. J.

W. J. Wadsworth, R. M. Percival, G. Bouwmans, J. C. Knight, and P. St. J. Russell, “High power air-clad photonic crystal fiber laser,” Opt. Express 11, 48–53 (2003).
[CrossRef] [PubMed]

W. J. Wadsworth, J. C. Knight, W. H. Reeves, P. St. J. Russell, and J. Arriaga, “Yb3+-doped photonic crystal fiber laser,” Electron. Lett. 36, 1452–1454 (2000).
[CrossRef]

Sahu, J. K.

Y. Jeong, P. Dupriez, J. K. Sahu, J. Nilsson, D. Y. Shen, W. A. Clarkson, and S. D. Jackson, “Power scaling of 2 μmytterbium-sensitized thulium-doped silica fiber laser diode-pumped at 975 nm,” Electron. Lett. 41, 173–174 (2005).
[CrossRef]

K. Furusawa, A. Malinowski, J. H. V. Price, T. M. Monro, J. K. Sahu, J. Nilsson, and D. J. Richardson, “Cladding pumped ytterbium-doped fiber laser with holey inner and outer cladding,” Opt. Express 9, 714–720 (2001).
[CrossRef] [PubMed]

Salin, F.

K. P. HansenJ. Broeng, P. M. W. Skovgaard, J. R. Folkenberg, M. D. Nielsen, A. Petersson, T. P. Hansen, C. Jakobsen, H. R. Simonsen, J. Limpert, and F. Salin, “High power photonic crystal fiber lasers: design, handling and sub-assemblies,” in Photonics West (SPIE, 2005), pp. 273–283.

Sen, R.

Shen, D. Y.

Y. Jeong, P. Dupriez, J. K. Sahu, J. Nilsson, D. Y. Shen, W. A. Clarkson, and S. D. Jackson, “Power scaling of 2 μmytterbium-sensitized thulium-doped silica fiber laser diode-pumped at 975 nm,” Electron. Lett. 41, 173–174 (2005).
[CrossRef]

Simonsen, H. R.

K. P. HansenJ. Broeng, P. M. W. Skovgaard, J. R. Folkenberg, M. D. Nielsen, A. Petersson, T. P. Hansen, C. Jakobsen, H. R. Simonsen, J. Limpert, and F. Salin, “High power photonic crystal fiber lasers: design, handling and sub-assemblies,” in Photonics West (SPIE, 2005), pp. 273–283.

Skovgaard, P. M. W.

K. P. HansenJ. Broeng, P. M. W. Skovgaard, J. R. Folkenberg, M. D. Nielsen, A. Petersson, T. P. Hansen, C. Jakobsen, H. R. Simonsen, J. Limpert, and F. Salin, “High power photonic crystal fiber lasers: design, handling and sub-assemblies,” in Photonics West (SPIE, 2005), pp. 273–283.

Søndergaard, T.

Sun, T.

Townsend, J. E.

D. C. Hanna, I. R. Perry, J. R. Lincoln, and J. E. Townsend, “A 1 watt thulium-doped cw fiber laser operating at 2 μm,” Opt. Commun. 80, 52–56 (1990).
[CrossRef]

Tropper, A. C.

R. Paschotta, J. Nilsson, P. R. Barber, J. E. Caplen, A. C. Tropper, and D. C. Hanna, “Lifetime quenching in Yb doped fibers,” Opt. Commun. 136, 375–378 (1997).
[CrossRef]

Turner, P. W.

Unger, S.

H. R. Müller, J. Kirchhof, V. Reichel, and S. Unger, “Fibers for high-power lasers and amplifiers,” C. R. Physique 7, 154–162(2006).
[CrossRef]

Wadsworth, W. J.

W. J. Wadsworth, R. M. Percival, G. Bouwmans, J. C. Knight, and P. St. J. Russell, “High power air-clad photonic crystal fiber laser,” Opt. Express 11, 48–53 (2003).
[CrossRef] [PubMed]

W. J. Wadsworth, J. C. Knight, W. H. Reeves, P. St. J. Russell, and J. Arriaga, “Yb3+-doped photonic crystal fiber laser,” Electron. Lett. 36, 1452–1454 (2000).
[CrossRef]

Yamamoto, T.

T. Yamamoto, Y. Miyajima, and T. Komukai, “1.9 μmTm-doped silica fiber laser pumped at 1.57 μm,” Electron. Lett. 30, 220–221 (1994).
[CrossRef]

C. R. Physique (1)

H. R. Müller, J. Kirchhof, V. Reichel, and S. Unger, “Fibers for high-power lasers and amplifiers,” C. R. Physique 7, 154–162(2006).
[CrossRef]

Electron. Lett. (3)

W. J. Wadsworth, J. C. Knight, W. H. Reeves, P. St. J. Russell, and J. Arriaga, “Yb3+-doped photonic crystal fiber laser,” Electron. Lett. 36, 1452–1454 (2000).
[CrossRef]

T. Yamamoto, Y. Miyajima, and T. Komukai, “1.9 μmTm-doped silica fiber laser pumped at 1.57 μm,” Electron. Lett. 30, 220–221 (1994).
[CrossRef]

Y. Jeong, P. Dupriez, J. K. Sahu, J. Nilsson, D. Y. Shen, W. A. Clarkson, and S. D. Jackson, “Power scaling of 2 μmytterbium-sensitized thulium-doped silica fiber laser diode-pumped at 975 nm,” Electron. Lett. 41, 173–174 (2005).
[CrossRef]

J. Lightwave Technol. (1)

Opt. Commun. (2)

R. Paschotta, J. Nilsson, P. R. Barber, J. E. Caplen, A. C. Tropper, and D. C. Hanna, “Lifetime quenching in Yb doped fibers,” Opt. Commun. 136, 375–378 (1997).
[CrossRef]

D. C. Hanna, I. R. Perry, J. R. Lincoln, and J. E. Townsend, “A 1 watt thulium-doped cw fiber laser operating at 2 μm,” Opt. Commun. 80, 52–56 (1990).
[CrossRef]

Opt. Express (3)

Opt. Fiber Technol. (1)

P. Leproux, S. Février, V. Doya, P. Roy, and D. Pagnoux, “Modeling and optimization of double-clad fiber amplifiers using chaotic propagation of the pump,” Opt. Fiber Technol. 7, 324–339 (2001).
[CrossRef]

Opt. Lett. (3)

Other (1)

K. P. HansenJ. Broeng, P. M. W. Skovgaard, J. R. Folkenberg, M. D. Nielsen, A. Petersson, T. P. Hansen, C. Jakobsen, H. R. Simonsen, J. Limpert, and F. Salin, “High power photonic crystal fiber lasers: design, handling and sub-assemblies,” in Photonics West (SPIE, 2005), pp. 273–283.

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Figures (6)

Fig. 1
Fig. 1

Refractive index profile of the Yb–Tm codoped preform having lowest concentration ratio of Yb Tm .

Fig. 2
Fig. 2

Microscope images of the cross sections of the fabricated ACFs: ACF-A, ACF-B, and ACF-C, respectively (from left to right).

Fig. 3
Fig. 3

Spectral attenuation curve of an all-solid fiber fabricated from the same preform.

Fig. 4
Fig. 4

Schematic of the experimental setup.

Fig. 5
Fig. 5

Output spectrum showing lasing peak of ACF-C. Inset: ASE from 10 m of ACF-B.

Fig. 6
Fig. 6

Laser output power versus launched pump power for ACF-B and ACF-C.

Tables (2)

Tables Icon

Table 1 Structural Parameters of the Fabricated Air-Clad Fibers

Tables Icon

Table 2 Study of V Parameter for Single-Mode Propagation at Lasing Wavelength of 2 μm

Equations (1)

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V = 2 π ρ λ NA ,

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