Abstract

We demonstrate a multicore multidopant fiber which, when pumped with a single pump source around 800nm, emits a more than one octave-spanning fluorescence spectrum ranging from 925 to 2300nm. The fiber preform is manufactured from granulated oxides and the individual cores are doped with five different rare earths, i.e., Nd3+, Yb3+, Er3+, Ho3+, and Tm3+.

© 2008 Optical Society of America

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  1. M. Jacquemet, N. Picqué, G. Guelachvili, A. Garnache, I. Sagnes, M. Strassner, and C. Symonds, “Continuous-wave 1.55 μm diode-pumped surface emitting semiconductor laser for broadband multiplex spectroscopy,” Opt. Lett. 32, 1387-1389 (2007).
    [CrossRef] [PubMed]
  2. T. R. Corle and G. S. Kino, Confocal Scanning Optical Microscopy and Related Imaging Systems (Academic, 1996).
  3. S. Martin-Lopez, M. Gonzalez-Herraez, A. Carrasco-Sanz, F. Vanholsbeeck, S. Coen, H. Fernandez, J. Solis, P. Corredera, and M. L. Hernanz, “Broadband spectrally flat and high power density light source for fibre sensing purposes,” Meas. Sci. Technol. 17, 1014-1019 (2006).
    [CrossRef]
  4. A. F. Fercher, W. Drexler, C. K. Hitzenberger, and T. Lasser, “Optical coherence tomography--principles and applications,” Rep. Prog. Phys. 66, 239-303 (2003).
    [CrossRef]
  5. V. R. Shidlovski and J. Wei, “Superluminescent diodes for optical coherence tomography,” Proc. SPIE 4648, 139-147 (2002).
    [CrossRef]
  6. F. Gan and Y. Chen, “The spectral characteristics of superfluorescence in rare-earth-doped silica fibres,” Pure Appl. Opt. 2, 359-365 (1993).
    [CrossRef]
  7. G. Genty, S. Coen, and J. M. Dudley, “Fiber supercontinuum (Invited),” J. Opt. Soc. Am. B 24, 1771-1785 (2007).
    [CrossRef]
  8. W. Zhang, Y. Wang, J. Peng, and X. Liu, “Broadband high power continuous wave fiber Raman source and its applications,” Opt. Commun. 231, 371-374 (2004).
    [CrossRef]
  9. R. Renner-Erny, L. Di Labio, and W. Lüthy, “A novel technique for active fibre production,” Opt. Mater. 29, 919-922 (2007).
    [CrossRef]
  10. L. Di Labio, R. Renner-Erny, P. Blattnig, V. Romano, W. Lüthy, F. Sandoz, and T. Feurer, “Novel technology to fabricate mixed multi-core fibre lasers in standard and air-clad configuration,” presented at the Second European Physical Society, Quantum Electronics and Optics Division, Europhoton Conference, Pisa, Italy, 10-15 September 2006.
  11. U. Pedrazza, V. Romano, and W. Lüthy, “Yb3+:Al3+: sol-gel silica glass fibre laser,” Opt. Mater. 29, 905-907 (2007).
    [CrossRef]
  12. P. Glas, M. Naumann, A. Schirrmacher, and T. Pertsch, “The multicore fiber--a novel design for a diode pumped fiber laser,” Opt. Commun. 151, 187-195 (1998).
    [CrossRef]
  13. P. K. Cheo, A. Liu, and G. G. King, “A high-brightness laser beam from a phase-locked multicore Yb-doped fiber laser array,” IEEE Photon. Technol. Lett. 13, 439-441 (2001).
    [CrossRef]
  14. Y. Huo and P. K. Cheo, “Analysis of transverse mode competition and selection in multicore fiber lasers,” J. Opt. Soc. Am. B 22, 2345-2349 (2005).
    [CrossRef]
  15. W. Lüthy and H. P. Weber, “High-power monomode fiber lasers,” Opt. Eng. 34, 2361-2364 (1995).
    [CrossRef]
  16. A. A. Kaminskii, Laser Crystals (Springer Verlag, 1981), p. 10.
  17. P. Tosin, W. Lüthy, and H. P. Weber, “Determination of the spectral absorption in silica samples with known rare earth dopant concentration,” in Proceedings of the Ninth International Conference on Modern Materials and Technologies, World Ceramics Congress and Forum of New Materials, Florenz, Italy, 14-19 June 1998.
  18. S. Zemon, B. Pedersen, G. Lambert, W. J. Miniscalco, L. J. Andrews, R. W. Davies, and T. Wei, “Excited-state absorption cross-sections in the 800 nm band for Er-doped, Al/P-silica fibres: measurements and amplifier modeling,” IEEE Photon. Technol. Lett. 3, 621-624 (1991).
    [CrossRef]
  19. J. Ballato and E. Snitzer, “Fabrication of fibres with high rare-earth concentrations for Faraday isolator applications,” Appl. Opt. 34, 6848-6854 (1995).
    [CrossRef] [PubMed]
  20. T. Suzuki and Y. Ohishi, “Ultrabroadband near-infrared emission from Bi-doped Li2O-Al2O3-SiO2 glass,” Appl. Phys. Lett. 88, 191912-1-191912-3 (2006)

2007 (4)

2006 (2)

T. Suzuki and Y. Ohishi, “Ultrabroadband near-infrared emission from Bi-doped Li2O-Al2O3-SiO2 glass,” Appl. Phys. Lett. 88, 191912-1-191912-3 (2006)

S. Martin-Lopez, M. Gonzalez-Herraez, A. Carrasco-Sanz, F. Vanholsbeeck, S. Coen, H. Fernandez, J. Solis, P. Corredera, and M. L. Hernanz, “Broadband spectrally flat and high power density light source for fibre sensing purposes,” Meas. Sci. Technol. 17, 1014-1019 (2006).
[CrossRef]

2005 (1)

2004 (1)

W. Zhang, Y. Wang, J. Peng, and X. Liu, “Broadband high power continuous wave fiber Raman source and its applications,” Opt. Commun. 231, 371-374 (2004).
[CrossRef]

2003 (1)

A. F. Fercher, W. Drexler, C. K. Hitzenberger, and T. Lasser, “Optical coherence tomography--principles and applications,” Rep. Prog. Phys. 66, 239-303 (2003).
[CrossRef]

2002 (1)

V. R. Shidlovski and J. Wei, “Superluminescent diodes for optical coherence tomography,” Proc. SPIE 4648, 139-147 (2002).
[CrossRef]

2001 (1)

P. K. Cheo, A. Liu, and G. G. King, “A high-brightness laser beam from a phase-locked multicore Yb-doped fiber laser array,” IEEE Photon. Technol. Lett. 13, 439-441 (2001).
[CrossRef]

1998 (1)

P. Glas, M. Naumann, A. Schirrmacher, and T. Pertsch, “The multicore fiber--a novel design for a diode pumped fiber laser,” Opt. Commun. 151, 187-195 (1998).
[CrossRef]

1995 (2)

1993 (1)

F. Gan and Y. Chen, “The spectral characteristics of superfluorescence in rare-earth-doped silica fibres,” Pure Appl. Opt. 2, 359-365 (1993).
[CrossRef]

1991 (1)

S. Zemon, B. Pedersen, G. Lambert, W. J. Miniscalco, L. J. Andrews, R. W. Davies, and T. Wei, “Excited-state absorption cross-sections in the 800 nm band for Er-doped, Al/P-silica fibres: measurements and amplifier modeling,” IEEE Photon. Technol. Lett. 3, 621-624 (1991).
[CrossRef]

Andrews, L. J.

S. Zemon, B. Pedersen, G. Lambert, W. J. Miniscalco, L. J. Andrews, R. W. Davies, and T. Wei, “Excited-state absorption cross-sections in the 800 nm band for Er-doped, Al/P-silica fibres: measurements and amplifier modeling,” IEEE Photon. Technol. Lett. 3, 621-624 (1991).
[CrossRef]

Ballato, J.

Blattnig, P.

L. Di Labio, R. Renner-Erny, P. Blattnig, V. Romano, W. Lüthy, F. Sandoz, and T. Feurer, “Novel technology to fabricate mixed multi-core fibre lasers in standard and air-clad configuration,” presented at the Second European Physical Society, Quantum Electronics and Optics Division, Europhoton Conference, Pisa, Italy, 10-15 September 2006.

Carrasco-Sanz, A.

S. Martin-Lopez, M. Gonzalez-Herraez, A. Carrasco-Sanz, F. Vanholsbeeck, S. Coen, H. Fernandez, J. Solis, P. Corredera, and M. L. Hernanz, “Broadband spectrally flat and high power density light source for fibre sensing purposes,” Meas. Sci. Technol. 17, 1014-1019 (2006).
[CrossRef]

Chen, Y.

F. Gan and Y. Chen, “The spectral characteristics of superfluorescence in rare-earth-doped silica fibres,” Pure Appl. Opt. 2, 359-365 (1993).
[CrossRef]

Cheo, P. K.

Y. Huo and P. K. Cheo, “Analysis of transverse mode competition and selection in multicore fiber lasers,” J. Opt. Soc. Am. B 22, 2345-2349 (2005).
[CrossRef]

P. K. Cheo, A. Liu, and G. G. King, “A high-brightness laser beam from a phase-locked multicore Yb-doped fiber laser array,” IEEE Photon. Technol. Lett. 13, 439-441 (2001).
[CrossRef]

Coen, S.

G. Genty, S. Coen, and J. M. Dudley, “Fiber supercontinuum (Invited),” J. Opt. Soc. Am. B 24, 1771-1785 (2007).
[CrossRef]

S. Martin-Lopez, M. Gonzalez-Herraez, A. Carrasco-Sanz, F. Vanholsbeeck, S. Coen, H. Fernandez, J. Solis, P. Corredera, and M. L. Hernanz, “Broadband spectrally flat and high power density light source for fibre sensing purposes,” Meas. Sci. Technol. 17, 1014-1019 (2006).
[CrossRef]

Corle, T. R.

T. R. Corle and G. S. Kino, Confocal Scanning Optical Microscopy and Related Imaging Systems (Academic, 1996).

Corredera, P.

S. Martin-Lopez, M. Gonzalez-Herraez, A. Carrasco-Sanz, F. Vanholsbeeck, S. Coen, H. Fernandez, J. Solis, P. Corredera, and M. L. Hernanz, “Broadband spectrally flat and high power density light source for fibre sensing purposes,” Meas. Sci. Technol. 17, 1014-1019 (2006).
[CrossRef]

Davies, R. W.

S. Zemon, B. Pedersen, G. Lambert, W. J. Miniscalco, L. J. Andrews, R. W. Davies, and T. Wei, “Excited-state absorption cross-sections in the 800 nm band for Er-doped, Al/P-silica fibres: measurements and amplifier modeling,” IEEE Photon. Technol. Lett. 3, 621-624 (1991).
[CrossRef]

Di Labio, L.

L. Di Labio, R. Renner-Erny, P. Blattnig, V. Romano, W. Lüthy, F. Sandoz, and T. Feurer, “Novel technology to fabricate mixed multi-core fibre lasers in standard and air-clad configuration,” presented at the Second European Physical Society, Quantum Electronics and Optics Division, Europhoton Conference, Pisa, Italy, 10-15 September 2006.

Drexler, W.

A. F. Fercher, W. Drexler, C. K. Hitzenberger, and T. Lasser, “Optical coherence tomography--principles and applications,” Rep. Prog. Phys. 66, 239-303 (2003).
[CrossRef]

Dudley, J. M.

Fercher, A. F.

A. F. Fercher, W. Drexler, C. K. Hitzenberger, and T. Lasser, “Optical coherence tomography--principles and applications,” Rep. Prog. Phys. 66, 239-303 (2003).
[CrossRef]

Fernandez, H.

S. Martin-Lopez, M. Gonzalez-Herraez, A. Carrasco-Sanz, F. Vanholsbeeck, S. Coen, H. Fernandez, J. Solis, P. Corredera, and M. L. Hernanz, “Broadband spectrally flat and high power density light source for fibre sensing purposes,” Meas. Sci. Technol. 17, 1014-1019 (2006).
[CrossRef]

Feurer, T.

L. Di Labio, R. Renner-Erny, P. Blattnig, V. Romano, W. Lüthy, F. Sandoz, and T. Feurer, “Novel technology to fabricate mixed multi-core fibre lasers in standard and air-clad configuration,” presented at the Second European Physical Society, Quantum Electronics and Optics Division, Europhoton Conference, Pisa, Italy, 10-15 September 2006.

Gan, F.

F. Gan and Y. Chen, “The spectral characteristics of superfluorescence in rare-earth-doped silica fibres,” Pure Appl. Opt. 2, 359-365 (1993).
[CrossRef]

Garnache, A.

Genty, G.

Glas, P.

P. Glas, M. Naumann, A. Schirrmacher, and T. Pertsch, “The multicore fiber--a novel design for a diode pumped fiber laser,” Opt. Commun. 151, 187-195 (1998).
[CrossRef]

Gonzalez-Herraez, M.

S. Martin-Lopez, M. Gonzalez-Herraez, A. Carrasco-Sanz, F. Vanholsbeeck, S. Coen, H. Fernandez, J. Solis, P. Corredera, and M. L. Hernanz, “Broadband spectrally flat and high power density light source for fibre sensing purposes,” Meas. Sci. Technol. 17, 1014-1019 (2006).
[CrossRef]

Guelachvili, G.

Hernanz, M. L.

S. Martin-Lopez, M. Gonzalez-Herraez, A. Carrasco-Sanz, F. Vanholsbeeck, S. Coen, H. Fernandez, J. Solis, P. Corredera, and M. L. Hernanz, “Broadband spectrally flat and high power density light source for fibre sensing purposes,” Meas. Sci. Technol. 17, 1014-1019 (2006).
[CrossRef]

Hitzenberger, C. K.

A. F. Fercher, W. Drexler, C. K. Hitzenberger, and T. Lasser, “Optical coherence tomography--principles and applications,” Rep. Prog. Phys. 66, 239-303 (2003).
[CrossRef]

Huo, Y.

Jacquemet, M.

Kaminskii, A. A.

A. A. Kaminskii, Laser Crystals (Springer Verlag, 1981), p. 10.

King, G. G.

P. K. Cheo, A. Liu, and G. G. King, “A high-brightness laser beam from a phase-locked multicore Yb-doped fiber laser array,” IEEE Photon. Technol. Lett. 13, 439-441 (2001).
[CrossRef]

Kino, G. S.

T. R. Corle and G. S. Kino, Confocal Scanning Optical Microscopy and Related Imaging Systems (Academic, 1996).

Labio, L. Di

R. Renner-Erny, L. Di Labio, and W. Lüthy, “A novel technique for active fibre production,” Opt. Mater. 29, 919-922 (2007).
[CrossRef]

Lambert, G.

S. Zemon, B. Pedersen, G. Lambert, W. J. Miniscalco, L. J. Andrews, R. W. Davies, and T. Wei, “Excited-state absorption cross-sections in the 800 nm band for Er-doped, Al/P-silica fibres: measurements and amplifier modeling,” IEEE Photon. Technol. Lett. 3, 621-624 (1991).
[CrossRef]

Lasser, T.

A. F. Fercher, W. Drexler, C. K. Hitzenberger, and T. Lasser, “Optical coherence tomography--principles and applications,” Rep. Prog. Phys. 66, 239-303 (2003).
[CrossRef]

Liu, A.

P. K. Cheo, A. Liu, and G. G. King, “A high-brightness laser beam from a phase-locked multicore Yb-doped fiber laser array,” IEEE Photon. Technol. Lett. 13, 439-441 (2001).
[CrossRef]

Liu, X.

W. Zhang, Y. Wang, J. Peng, and X. Liu, “Broadband high power continuous wave fiber Raman source and its applications,” Opt. Commun. 231, 371-374 (2004).
[CrossRef]

Lüthy, W.

R. Renner-Erny, L. Di Labio, and W. Lüthy, “A novel technique for active fibre production,” Opt. Mater. 29, 919-922 (2007).
[CrossRef]

U. Pedrazza, V. Romano, and W. Lüthy, “Yb3+:Al3+: sol-gel silica glass fibre laser,” Opt. Mater. 29, 905-907 (2007).
[CrossRef]

W. Lüthy and H. P. Weber, “High-power monomode fiber lasers,” Opt. Eng. 34, 2361-2364 (1995).
[CrossRef]

P. Tosin, W. Lüthy, and H. P. Weber, “Determination of the spectral absorption in silica samples with known rare earth dopant concentration,” in Proceedings of the Ninth International Conference on Modern Materials and Technologies, World Ceramics Congress and Forum of New Materials, Florenz, Italy, 14-19 June 1998.

L. Di Labio, R. Renner-Erny, P. Blattnig, V. Romano, W. Lüthy, F. Sandoz, and T. Feurer, “Novel technology to fabricate mixed multi-core fibre lasers in standard and air-clad configuration,” presented at the Second European Physical Society, Quantum Electronics and Optics Division, Europhoton Conference, Pisa, Italy, 10-15 September 2006.

Martin-Lopez, S.

S. Martin-Lopez, M. Gonzalez-Herraez, A. Carrasco-Sanz, F. Vanholsbeeck, S. Coen, H. Fernandez, J. Solis, P. Corredera, and M. L. Hernanz, “Broadband spectrally flat and high power density light source for fibre sensing purposes,” Meas. Sci. Technol. 17, 1014-1019 (2006).
[CrossRef]

Miniscalco, W. J.

S. Zemon, B. Pedersen, G. Lambert, W. J. Miniscalco, L. J. Andrews, R. W. Davies, and T. Wei, “Excited-state absorption cross-sections in the 800 nm band for Er-doped, Al/P-silica fibres: measurements and amplifier modeling,” IEEE Photon. Technol. Lett. 3, 621-624 (1991).
[CrossRef]

Naumann, M.

P. Glas, M. Naumann, A. Schirrmacher, and T. Pertsch, “The multicore fiber--a novel design for a diode pumped fiber laser,” Opt. Commun. 151, 187-195 (1998).
[CrossRef]

Ohishi, Y.

T. Suzuki and Y. Ohishi, “Ultrabroadband near-infrared emission from Bi-doped Li2O-Al2O3-SiO2 glass,” Appl. Phys. Lett. 88, 191912-1-191912-3 (2006)

Pedersen, B.

S. Zemon, B. Pedersen, G. Lambert, W. J. Miniscalco, L. J. Andrews, R. W. Davies, and T. Wei, “Excited-state absorption cross-sections in the 800 nm band for Er-doped, Al/P-silica fibres: measurements and amplifier modeling,” IEEE Photon. Technol. Lett. 3, 621-624 (1991).
[CrossRef]

Pedrazza, U.

U. Pedrazza, V. Romano, and W. Lüthy, “Yb3+:Al3+: sol-gel silica glass fibre laser,” Opt. Mater. 29, 905-907 (2007).
[CrossRef]

Peng, J.

W. Zhang, Y. Wang, J. Peng, and X. Liu, “Broadband high power continuous wave fiber Raman source and its applications,” Opt. Commun. 231, 371-374 (2004).
[CrossRef]

Pertsch, T.

P. Glas, M. Naumann, A. Schirrmacher, and T. Pertsch, “The multicore fiber--a novel design for a diode pumped fiber laser,” Opt. Commun. 151, 187-195 (1998).
[CrossRef]

Picqué, N.

Renner-Erny, R.

R. Renner-Erny, L. Di Labio, and W. Lüthy, “A novel technique for active fibre production,” Opt. Mater. 29, 919-922 (2007).
[CrossRef]

L. Di Labio, R. Renner-Erny, P. Blattnig, V. Romano, W. Lüthy, F. Sandoz, and T. Feurer, “Novel technology to fabricate mixed multi-core fibre lasers in standard and air-clad configuration,” presented at the Second European Physical Society, Quantum Electronics and Optics Division, Europhoton Conference, Pisa, Italy, 10-15 September 2006.

Romano, V.

U. Pedrazza, V. Romano, and W. Lüthy, “Yb3+:Al3+: sol-gel silica glass fibre laser,” Opt. Mater. 29, 905-907 (2007).
[CrossRef]

L. Di Labio, R. Renner-Erny, P. Blattnig, V. Romano, W. Lüthy, F. Sandoz, and T. Feurer, “Novel technology to fabricate mixed multi-core fibre lasers in standard and air-clad configuration,” presented at the Second European Physical Society, Quantum Electronics and Optics Division, Europhoton Conference, Pisa, Italy, 10-15 September 2006.

Sagnes, I.

Sandoz, F.

L. Di Labio, R. Renner-Erny, P. Blattnig, V. Romano, W. Lüthy, F. Sandoz, and T. Feurer, “Novel technology to fabricate mixed multi-core fibre lasers in standard and air-clad configuration,” presented at the Second European Physical Society, Quantum Electronics and Optics Division, Europhoton Conference, Pisa, Italy, 10-15 September 2006.

Schirrmacher, A.

P. Glas, M. Naumann, A. Schirrmacher, and T. Pertsch, “The multicore fiber--a novel design for a diode pumped fiber laser,” Opt. Commun. 151, 187-195 (1998).
[CrossRef]

Shidlovski, V. R.

V. R. Shidlovski and J. Wei, “Superluminescent diodes for optical coherence tomography,” Proc. SPIE 4648, 139-147 (2002).
[CrossRef]

Snitzer, E.

Solis, J.

S. Martin-Lopez, M. Gonzalez-Herraez, A. Carrasco-Sanz, F. Vanholsbeeck, S. Coen, H. Fernandez, J. Solis, P. Corredera, and M. L. Hernanz, “Broadband spectrally flat and high power density light source for fibre sensing purposes,” Meas. Sci. Technol. 17, 1014-1019 (2006).
[CrossRef]

Strassner, M.

Suzuki, T.

T. Suzuki and Y. Ohishi, “Ultrabroadband near-infrared emission from Bi-doped Li2O-Al2O3-SiO2 glass,” Appl. Phys. Lett. 88, 191912-1-191912-3 (2006)

Symonds, C.

Tosin, P.

P. Tosin, W. Lüthy, and H. P. Weber, “Determination of the spectral absorption in silica samples with known rare earth dopant concentration,” in Proceedings of the Ninth International Conference on Modern Materials and Technologies, World Ceramics Congress and Forum of New Materials, Florenz, Italy, 14-19 June 1998.

Vanholsbeeck, F.

S. Martin-Lopez, M. Gonzalez-Herraez, A. Carrasco-Sanz, F. Vanholsbeeck, S. Coen, H. Fernandez, J. Solis, P. Corredera, and M. L. Hernanz, “Broadband spectrally flat and high power density light source for fibre sensing purposes,” Meas. Sci. Technol. 17, 1014-1019 (2006).
[CrossRef]

Wang, Y.

W. Zhang, Y. Wang, J. Peng, and X. Liu, “Broadband high power continuous wave fiber Raman source and its applications,” Opt. Commun. 231, 371-374 (2004).
[CrossRef]

Weber, H. P.

W. Lüthy and H. P. Weber, “High-power monomode fiber lasers,” Opt. Eng. 34, 2361-2364 (1995).
[CrossRef]

P. Tosin, W. Lüthy, and H. P. Weber, “Determination of the spectral absorption in silica samples with known rare earth dopant concentration,” in Proceedings of the Ninth International Conference on Modern Materials and Technologies, World Ceramics Congress and Forum of New Materials, Florenz, Italy, 14-19 June 1998.

Wei, J.

V. R. Shidlovski and J. Wei, “Superluminescent diodes for optical coherence tomography,” Proc. SPIE 4648, 139-147 (2002).
[CrossRef]

Wei, T.

S. Zemon, B. Pedersen, G. Lambert, W. J. Miniscalco, L. J. Andrews, R. W. Davies, and T. Wei, “Excited-state absorption cross-sections in the 800 nm band for Er-doped, Al/P-silica fibres: measurements and amplifier modeling,” IEEE Photon. Technol. Lett. 3, 621-624 (1991).
[CrossRef]

Zemon, S.

S. Zemon, B. Pedersen, G. Lambert, W. J. Miniscalco, L. J. Andrews, R. W. Davies, and T. Wei, “Excited-state absorption cross-sections in the 800 nm band for Er-doped, Al/P-silica fibres: measurements and amplifier modeling,” IEEE Photon. Technol. Lett. 3, 621-624 (1991).
[CrossRef]

Zhang, W.

W. Zhang, Y. Wang, J. Peng, and X. Liu, “Broadband high power continuous wave fiber Raman source and its applications,” Opt. Commun. 231, 371-374 (2004).
[CrossRef]

Appl. Opt. (1)

Appl. Phys. Lett. (1)

T. Suzuki and Y. Ohishi, “Ultrabroadband near-infrared emission from Bi-doped Li2O-Al2O3-SiO2 glass,” Appl. Phys. Lett. 88, 191912-1-191912-3 (2006)

IEEE Photon. Technol. Lett. (2)

S. Zemon, B. Pedersen, G. Lambert, W. J. Miniscalco, L. J. Andrews, R. W. Davies, and T. Wei, “Excited-state absorption cross-sections in the 800 nm band for Er-doped, Al/P-silica fibres: measurements and amplifier modeling,” IEEE Photon. Technol. Lett. 3, 621-624 (1991).
[CrossRef]

P. K. Cheo, A. Liu, and G. G. King, “A high-brightness laser beam from a phase-locked multicore Yb-doped fiber laser array,” IEEE Photon. Technol. Lett. 13, 439-441 (2001).
[CrossRef]

J. Opt. Soc. Am. B (2)

Meas. Sci. Technol. (1)

S. Martin-Lopez, M. Gonzalez-Herraez, A. Carrasco-Sanz, F. Vanholsbeeck, S. Coen, H. Fernandez, J. Solis, P. Corredera, and M. L. Hernanz, “Broadband spectrally flat and high power density light source for fibre sensing purposes,” Meas. Sci. Technol. 17, 1014-1019 (2006).
[CrossRef]

Opt. Commun. (2)

W. Zhang, Y. Wang, J. Peng, and X. Liu, “Broadband high power continuous wave fiber Raman source and its applications,” Opt. Commun. 231, 371-374 (2004).
[CrossRef]

P. Glas, M. Naumann, A. Schirrmacher, and T. Pertsch, “The multicore fiber--a novel design for a diode pumped fiber laser,” Opt. Commun. 151, 187-195 (1998).
[CrossRef]

Opt. Eng. (1)

W. Lüthy and H. P. Weber, “High-power monomode fiber lasers,” Opt. Eng. 34, 2361-2364 (1995).
[CrossRef]

Opt. Lett. (1)

Opt. Mater. (2)

R. Renner-Erny, L. Di Labio, and W. Lüthy, “A novel technique for active fibre production,” Opt. Mater. 29, 919-922 (2007).
[CrossRef]

U. Pedrazza, V. Romano, and W. Lüthy, “Yb3+:Al3+: sol-gel silica glass fibre laser,” Opt. Mater. 29, 905-907 (2007).
[CrossRef]

Proc. SPIE (1)

V. R. Shidlovski and J. Wei, “Superluminescent diodes for optical coherence tomography,” Proc. SPIE 4648, 139-147 (2002).
[CrossRef]

Pure Appl. Opt. (1)

F. Gan and Y. Chen, “The spectral characteristics of superfluorescence in rare-earth-doped silica fibres,” Pure Appl. Opt. 2, 359-365 (1993).
[CrossRef]

Rep. Prog. Phys. (1)

A. F. Fercher, W. Drexler, C. K. Hitzenberger, and T. Lasser, “Optical coherence tomography--principles and applications,” Rep. Prog. Phys. 66, 239-303 (2003).
[CrossRef]

Other (4)

T. R. Corle and G. S. Kino, Confocal Scanning Optical Microscopy and Related Imaging Systems (Academic, 1996).

L. Di Labio, R. Renner-Erny, P. Blattnig, V. Romano, W. Lüthy, F. Sandoz, and T. Feurer, “Novel technology to fabricate mixed multi-core fibre lasers in standard and air-clad configuration,” presented at the Second European Physical Society, Quantum Electronics and Optics Division, Europhoton Conference, Pisa, Italy, 10-15 September 2006.

A. A. Kaminskii, Laser Crystals (Springer Verlag, 1981), p. 10.

P. Tosin, W. Lüthy, and H. P. Weber, “Determination of the spectral absorption in silica samples with known rare earth dopant concentration,” in Proceedings of the Ninth International Conference on Modern Materials and Technologies, World Ceramics Congress and Forum of New Materials, Florenz, Italy, 14-19 June 1998.

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Figures (3)

Fig. 1
Fig. 1

(a) Arrangement of the seven differently doped cores. Images of the rear fiber end with (b) all cores pumped, (c) two Nd 3 + -doped cores pumped, and (d) single Nd 3 + -doped core pumped.

Fig. 2
Fig. 2

Spectra of individually pumped 16 μm large cores: (a)  Yb 3 + , (b)  Nd 3 + , (c)  Ho 3 + , and (d)  Tm 3 + . When pairs of cores are simultaneously pumped mixed spectra are observed: (e)  Nd 3 + and Er 3 + and (f)  Nd 3 + and Yb 3 + .

Fig. 3
Fig. 3

Fluorescence spectrum emitted from a fiber with 5 μm large cores. The spectral intensities are as measured, that is, without correcting for efficiencies. The curve at 1954 nm labeled with a ? is assigned to a second order peak of the 977 nm Yb 3 + emission.

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