Abstract

The characteristics of the performance of a diode-cladding-pumped Yb3+, Ho3+-doped silica fiber laser are presented. To our knowledge this is the first demonstration of a Yb3+, Ho3+-doped fiber laser, and a maximum output power of 0.85 W was achieved for a launched pump power of 10.9 W. For launched pump powers <7 W, the slope efficiency was ∼12.5%. Visible fluorescence emission with peaks at ∼485, ∼550, and ∼660 nm measured at the output from the laser suggests that excited-state absorption and energy-transfer upconversion losses may impair the functioning of the laser. Increasing the Yb3+ and Ho3+ concentrations and the Yb3+:Ho3+ concentration ratio may lead to an improvement in the overall efficiency of the device.

© 2003 Optical Society of America

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  1. K. Oh, T. F. Morse, A. Kilian, L. Reinhart, P. M. Weber, “Continuous-wave oscillation of thulium-sensitized holmium-doped silica fiber laser,” Opt. Lett. 19, 278–280 (1994).
    [CrossRef] [PubMed]
  2. A. S. Kurkov, E. M. Dianov, O. I. Medvedkov, G. A. Ivanov, V. A. Aksenov, V. M. Paramonov, S. A. Vasiliev, E. V. Pershina, “Efficient silica-based Ho3+ fibre laser for 2 μm spectral region pumped at 1.15 μm,” Electron. Lett. 36, 1015–1016 (2000).
    [CrossRef]
  3. D. C. Hanna, R. M. Percival, R. G. Smart, J. E. Townsend, A. C. Tropper, “Continuous-wave oscillation of holmium-doped silica fibre laser,” Electron. Lett. 25, 593–594 (1989).
    [CrossRef]
  4. L. Esterowitz, J. Noonan, J. Bahler, “Enhancement in a Ho3+-Yb3+ quantum counter by energy transfer,” Appl. Phys. Lett. 10, 126–127 (1967).
    [CrossRef]
  5. A. A. Nikitichev, V. A. Serebryakov, “Average power limits of diode-laser-pumped Ho:YAG lasers,” in Laser Physics, A. A. Mak, ed., Proc. SPIE2095, 194–201 (1993).
  6. R. Walti, W. Luthy, H. P. Weber, S. Ya. Rusanow, A. A. Yakovlev, A. I. Zagumenyi, I. Shcherbakov, A. F. Umyskov, “Yb3+/Ho3+ energy exchange mechanisms in Yb:Ho:YAG crystals for 2 μm or 540 nm lasing,” J. Quant. Spectrosc. Radiat. Transfer 54, 671–681 (1995).
    [CrossRef]
  7. A. Diening, B.-M. Dicks, E. Heumann, R. Gross, G. Huber, “970 nm diode pumped Yb,Tm and Yb,Ho:YAG laser in the 2 μm spectral region,” in Advanced Solid State Lasers, C. R. Pollock, W. R. Bosenberg, eds., Vol. 10 of OSA Trends in Optics and Photonics Series (Optical Society of America, Washington, D.C., 1997), pp. 202–204.
  8. T. Rothacher, W. Luthy, H. P. Weber, “Diode pumping and laser properties of Yb,Ho:YAG,” Opt. Commun. 155, 68–72 (1998).
    [CrossRef]
  9. R. K. Watts, H. J. Richter, “Diffusion and transfer of optical excitation in YF3:Yb, Ho,” Phys. Rev. B 6, 1584–1589 (1972).
    [CrossRef]
  10. A. F. Umyskov, Yu. D. Zavartsev, A. I. Zagumennyi, V. V. Osiko, P. A. Studenikin, “Cr3+:Yb3+:Ho3+:YSGG crystal laser with a continuously tunable emission wavelength in the range 2.84–3.05 μm,” Quantum Electron. 26, 563–564 (1996).
    [CrossRef]
  11. A. F. Umyskov, Yu. D. Zavartsev, A. I. Zagumennyi, V. V. Osiko, P. A. Studenikin, “Efficient 3-μm Cr3+Yb3+:Ho3+:YSGG crystal laser,” Quantum Electron. 26, 771–772 (1996).
    [CrossRef]
  12. A. Diening, P. E.-A. Mobert, E. Heumann, G. Huber, B. H. T. Chai, “Diode-pumped CW lasing of Yb,Ho:KYF4 in the 3 μm spectral range in comparison to Er:KYF4,” Laser Phys. 8, 214–217 (1998).
  13. A. Diening, S. Kuck, “Spectroscopy and diode-pumped laser oscillation of Yb3+, Ho3+-doped yttrium scandium gallium garnet,” J. Appl. Phys. 87, 4063–4068 (2000).
    [CrossRef]

2000

A. S. Kurkov, E. M. Dianov, O. I. Medvedkov, G. A. Ivanov, V. A. Aksenov, V. M. Paramonov, S. A. Vasiliev, E. V. Pershina, “Efficient silica-based Ho3+ fibre laser for 2 μm spectral region pumped at 1.15 μm,” Electron. Lett. 36, 1015–1016 (2000).
[CrossRef]

A. Diening, S. Kuck, “Spectroscopy and diode-pumped laser oscillation of Yb3+, Ho3+-doped yttrium scandium gallium garnet,” J. Appl. Phys. 87, 4063–4068 (2000).
[CrossRef]

1998

A. Diening, P. E.-A. Mobert, E. Heumann, G. Huber, B. H. T. Chai, “Diode-pumped CW lasing of Yb,Ho:KYF4 in the 3 μm spectral range in comparison to Er:KYF4,” Laser Phys. 8, 214–217 (1998).

T. Rothacher, W. Luthy, H. P. Weber, “Diode pumping and laser properties of Yb,Ho:YAG,” Opt. Commun. 155, 68–72 (1998).
[CrossRef]

1996

A. F. Umyskov, Yu. D. Zavartsev, A. I. Zagumennyi, V. V. Osiko, P. A. Studenikin, “Cr3+:Yb3+:Ho3+:YSGG crystal laser with a continuously tunable emission wavelength in the range 2.84–3.05 μm,” Quantum Electron. 26, 563–564 (1996).
[CrossRef]

A. F. Umyskov, Yu. D. Zavartsev, A. I. Zagumennyi, V. V. Osiko, P. A. Studenikin, “Efficient 3-μm Cr3+Yb3+:Ho3+:YSGG crystal laser,” Quantum Electron. 26, 771–772 (1996).
[CrossRef]

1995

R. Walti, W. Luthy, H. P. Weber, S. Ya. Rusanow, A. A. Yakovlev, A. I. Zagumenyi, I. Shcherbakov, A. F. Umyskov, “Yb3+/Ho3+ energy exchange mechanisms in Yb:Ho:YAG crystals for 2 μm or 540 nm lasing,” J. Quant. Spectrosc. Radiat. Transfer 54, 671–681 (1995).
[CrossRef]

1994

1989

D. C. Hanna, R. M. Percival, R. G. Smart, J. E. Townsend, A. C. Tropper, “Continuous-wave oscillation of holmium-doped silica fibre laser,” Electron. Lett. 25, 593–594 (1989).
[CrossRef]

1972

R. K. Watts, H. J. Richter, “Diffusion and transfer of optical excitation in YF3:Yb, Ho,” Phys. Rev. B 6, 1584–1589 (1972).
[CrossRef]

1967

L. Esterowitz, J. Noonan, J. Bahler, “Enhancement in a Ho3+-Yb3+ quantum counter by energy transfer,” Appl. Phys. Lett. 10, 126–127 (1967).
[CrossRef]

Aksenov, V. A.

A. S. Kurkov, E. M. Dianov, O. I. Medvedkov, G. A. Ivanov, V. A. Aksenov, V. M. Paramonov, S. A. Vasiliev, E. V. Pershina, “Efficient silica-based Ho3+ fibre laser for 2 μm spectral region pumped at 1.15 μm,” Electron. Lett. 36, 1015–1016 (2000).
[CrossRef]

Bahler, J.

L. Esterowitz, J. Noonan, J. Bahler, “Enhancement in a Ho3+-Yb3+ quantum counter by energy transfer,” Appl. Phys. Lett. 10, 126–127 (1967).
[CrossRef]

Chai, B. H. T.

A. Diening, P. E.-A. Mobert, E. Heumann, G. Huber, B. H. T. Chai, “Diode-pumped CW lasing of Yb,Ho:KYF4 in the 3 μm spectral range in comparison to Er:KYF4,” Laser Phys. 8, 214–217 (1998).

Dianov, E. M.

A. S. Kurkov, E. M. Dianov, O. I. Medvedkov, G. A. Ivanov, V. A. Aksenov, V. M. Paramonov, S. A. Vasiliev, E. V. Pershina, “Efficient silica-based Ho3+ fibre laser for 2 μm spectral region pumped at 1.15 μm,” Electron. Lett. 36, 1015–1016 (2000).
[CrossRef]

Dicks, B.-M.

A. Diening, B.-M. Dicks, E. Heumann, R. Gross, G. Huber, “970 nm diode pumped Yb,Tm and Yb,Ho:YAG laser in the 2 μm spectral region,” in Advanced Solid State Lasers, C. R. Pollock, W. R. Bosenberg, eds., Vol. 10 of OSA Trends in Optics and Photonics Series (Optical Society of America, Washington, D.C., 1997), pp. 202–204.

Diening, A.

A. Diening, S. Kuck, “Spectroscopy and diode-pumped laser oscillation of Yb3+, Ho3+-doped yttrium scandium gallium garnet,” J. Appl. Phys. 87, 4063–4068 (2000).
[CrossRef]

A. Diening, P. E.-A. Mobert, E. Heumann, G. Huber, B. H. T. Chai, “Diode-pumped CW lasing of Yb,Ho:KYF4 in the 3 μm spectral range in comparison to Er:KYF4,” Laser Phys. 8, 214–217 (1998).

A. Diening, B.-M. Dicks, E. Heumann, R. Gross, G. Huber, “970 nm diode pumped Yb,Tm and Yb,Ho:YAG laser in the 2 μm spectral region,” in Advanced Solid State Lasers, C. R. Pollock, W. R. Bosenberg, eds., Vol. 10 of OSA Trends in Optics and Photonics Series (Optical Society of America, Washington, D.C., 1997), pp. 202–204.

Esterowitz, L.

L. Esterowitz, J. Noonan, J. Bahler, “Enhancement in a Ho3+-Yb3+ quantum counter by energy transfer,” Appl. Phys. Lett. 10, 126–127 (1967).
[CrossRef]

Gross, R.

A. Diening, B.-M. Dicks, E. Heumann, R. Gross, G. Huber, “970 nm diode pumped Yb,Tm and Yb,Ho:YAG laser in the 2 μm spectral region,” in Advanced Solid State Lasers, C. R. Pollock, W. R. Bosenberg, eds., Vol. 10 of OSA Trends in Optics and Photonics Series (Optical Society of America, Washington, D.C., 1997), pp. 202–204.

Hanna, D. C.

D. C. Hanna, R. M. Percival, R. G. Smart, J. E. Townsend, A. C. Tropper, “Continuous-wave oscillation of holmium-doped silica fibre laser,” Electron. Lett. 25, 593–594 (1989).
[CrossRef]

Heumann, E.

A. Diening, P. E.-A. Mobert, E. Heumann, G. Huber, B. H. T. Chai, “Diode-pumped CW lasing of Yb,Ho:KYF4 in the 3 μm spectral range in comparison to Er:KYF4,” Laser Phys. 8, 214–217 (1998).

A. Diening, B.-M. Dicks, E. Heumann, R. Gross, G. Huber, “970 nm diode pumped Yb,Tm and Yb,Ho:YAG laser in the 2 μm spectral region,” in Advanced Solid State Lasers, C. R. Pollock, W. R. Bosenberg, eds., Vol. 10 of OSA Trends in Optics and Photonics Series (Optical Society of America, Washington, D.C., 1997), pp. 202–204.

Huber, G.

A. Diening, P. E.-A. Mobert, E. Heumann, G. Huber, B. H. T. Chai, “Diode-pumped CW lasing of Yb,Ho:KYF4 in the 3 μm spectral range in comparison to Er:KYF4,” Laser Phys. 8, 214–217 (1998).

A. Diening, B.-M. Dicks, E. Heumann, R. Gross, G. Huber, “970 nm diode pumped Yb,Tm and Yb,Ho:YAG laser in the 2 μm spectral region,” in Advanced Solid State Lasers, C. R. Pollock, W. R. Bosenberg, eds., Vol. 10 of OSA Trends in Optics and Photonics Series (Optical Society of America, Washington, D.C., 1997), pp. 202–204.

Ivanov, G. A.

A. S. Kurkov, E. M. Dianov, O. I. Medvedkov, G. A. Ivanov, V. A. Aksenov, V. M. Paramonov, S. A. Vasiliev, E. V. Pershina, “Efficient silica-based Ho3+ fibre laser for 2 μm spectral region pumped at 1.15 μm,” Electron. Lett. 36, 1015–1016 (2000).
[CrossRef]

Kilian, A.

Kuck, S.

A. Diening, S. Kuck, “Spectroscopy and diode-pumped laser oscillation of Yb3+, Ho3+-doped yttrium scandium gallium garnet,” J. Appl. Phys. 87, 4063–4068 (2000).
[CrossRef]

Kurkov, A. S.

A. S. Kurkov, E. M. Dianov, O. I. Medvedkov, G. A. Ivanov, V. A. Aksenov, V. M. Paramonov, S. A. Vasiliev, E. V. Pershina, “Efficient silica-based Ho3+ fibre laser for 2 μm spectral region pumped at 1.15 μm,” Electron. Lett. 36, 1015–1016 (2000).
[CrossRef]

Luthy, W.

T. Rothacher, W. Luthy, H. P. Weber, “Diode pumping and laser properties of Yb,Ho:YAG,” Opt. Commun. 155, 68–72 (1998).
[CrossRef]

R. Walti, W. Luthy, H. P. Weber, S. Ya. Rusanow, A. A. Yakovlev, A. I. Zagumenyi, I. Shcherbakov, A. F. Umyskov, “Yb3+/Ho3+ energy exchange mechanisms in Yb:Ho:YAG crystals for 2 μm or 540 nm lasing,” J. Quant. Spectrosc. Radiat. Transfer 54, 671–681 (1995).
[CrossRef]

Medvedkov, O. I.

A. S. Kurkov, E. M. Dianov, O. I. Medvedkov, G. A. Ivanov, V. A. Aksenov, V. M. Paramonov, S. A. Vasiliev, E. V. Pershina, “Efficient silica-based Ho3+ fibre laser for 2 μm spectral region pumped at 1.15 μm,” Electron. Lett. 36, 1015–1016 (2000).
[CrossRef]

Mobert, P. E.-A.

A. Diening, P. E.-A. Mobert, E. Heumann, G. Huber, B. H. T. Chai, “Diode-pumped CW lasing of Yb,Ho:KYF4 in the 3 μm spectral range in comparison to Er:KYF4,” Laser Phys. 8, 214–217 (1998).

Morse, T. F.

Nikitichev, A. A.

A. A. Nikitichev, V. A. Serebryakov, “Average power limits of diode-laser-pumped Ho:YAG lasers,” in Laser Physics, A. A. Mak, ed., Proc. SPIE2095, 194–201 (1993).

Noonan, J.

L. Esterowitz, J. Noonan, J. Bahler, “Enhancement in a Ho3+-Yb3+ quantum counter by energy transfer,” Appl. Phys. Lett. 10, 126–127 (1967).
[CrossRef]

Oh, K.

Osiko, V. V.

A. F. Umyskov, Yu. D. Zavartsev, A. I. Zagumennyi, V. V. Osiko, P. A. Studenikin, “Efficient 3-μm Cr3+Yb3+:Ho3+:YSGG crystal laser,” Quantum Electron. 26, 771–772 (1996).
[CrossRef]

A. F. Umyskov, Yu. D. Zavartsev, A. I. Zagumennyi, V. V. Osiko, P. A. Studenikin, “Cr3+:Yb3+:Ho3+:YSGG crystal laser with a continuously tunable emission wavelength in the range 2.84–3.05 μm,” Quantum Electron. 26, 563–564 (1996).
[CrossRef]

Paramonov, V. M.

A. S. Kurkov, E. M. Dianov, O. I. Medvedkov, G. A. Ivanov, V. A. Aksenov, V. M. Paramonov, S. A. Vasiliev, E. V. Pershina, “Efficient silica-based Ho3+ fibre laser for 2 μm spectral region pumped at 1.15 μm,” Electron. Lett. 36, 1015–1016 (2000).
[CrossRef]

Percival, R. M.

D. C. Hanna, R. M. Percival, R. G. Smart, J. E. Townsend, A. C. Tropper, “Continuous-wave oscillation of holmium-doped silica fibre laser,” Electron. Lett. 25, 593–594 (1989).
[CrossRef]

Pershina, E. V.

A. S. Kurkov, E. M. Dianov, O. I. Medvedkov, G. A. Ivanov, V. A. Aksenov, V. M. Paramonov, S. A. Vasiliev, E. V. Pershina, “Efficient silica-based Ho3+ fibre laser for 2 μm spectral region pumped at 1.15 μm,” Electron. Lett. 36, 1015–1016 (2000).
[CrossRef]

Reinhart, L.

Richter, H. J.

R. K. Watts, H. J. Richter, “Diffusion and transfer of optical excitation in YF3:Yb, Ho,” Phys. Rev. B 6, 1584–1589 (1972).
[CrossRef]

Rothacher, T.

T. Rothacher, W. Luthy, H. P. Weber, “Diode pumping and laser properties of Yb,Ho:YAG,” Opt. Commun. 155, 68–72 (1998).
[CrossRef]

Rusanow, S. Ya.

R. Walti, W. Luthy, H. P. Weber, S. Ya. Rusanow, A. A. Yakovlev, A. I. Zagumenyi, I. Shcherbakov, A. F. Umyskov, “Yb3+/Ho3+ energy exchange mechanisms in Yb:Ho:YAG crystals for 2 μm or 540 nm lasing,” J. Quant. Spectrosc. Radiat. Transfer 54, 671–681 (1995).
[CrossRef]

Serebryakov, V. A.

A. A. Nikitichev, V. A. Serebryakov, “Average power limits of diode-laser-pumped Ho:YAG lasers,” in Laser Physics, A. A. Mak, ed., Proc. SPIE2095, 194–201 (1993).

Shcherbakov, I.

R. Walti, W. Luthy, H. P. Weber, S. Ya. Rusanow, A. A. Yakovlev, A. I. Zagumenyi, I. Shcherbakov, A. F. Umyskov, “Yb3+/Ho3+ energy exchange mechanisms in Yb:Ho:YAG crystals for 2 μm or 540 nm lasing,” J. Quant. Spectrosc. Radiat. Transfer 54, 671–681 (1995).
[CrossRef]

Smart, R. G.

D. C. Hanna, R. M. Percival, R. G. Smart, J. E. Townsend, A. C. Tropper, “Continuous-wave oscillation of holmium-doped silica fibre laser,” Electron. Lett. 25, 593–594 (1989).
[CrossRef]

Studenikin, P. A.

A. F. Umyskov, Yu. D. Zavartsev, A. I. Zagumennyi, V. V. Osiko, P. A. Studenikin, “Cr3+:Yb3+:Ho3+:YSGG crystal laser with a continuously tunable emission wavelength in the range 2.84–3.05 μm,” Quantum Electron. 26, 563–564 (1996).
[CrossRef]

A. F. Umyskov, Yu. D. Zavartsev, A. I. Zagumennyi, V. V. Osiko, P. A. Studenikin, “Efficient 3-μm Cr3+Yb3+:Ho3+:YSGG crystal laser,” Quantum Electron. 26, 771–772 (1996).
[CrossRef]

Townsend, J. E.

D. C. Hanna, R. M. Percival, R. G. Smart, J. E. Townsend, A. C. Tropper, “Continuous-wave oscillation of holmium-doped silica fibre laser,” Electron. Lett. 25, 593–594 (1989).
[CrossRef]

Tropper, A. C.

D. C. Hanna, R. M. Percival, R. G. Smart, J. E. Townsend, A. C. Tropper, “Continuous-wave oscillation of holmium-doped silica fibre laser,” Electron. Lett. 25, 593–594 (1989).
[CrossRef]

Umyskov, A. F.

A. F. Umyskov, Yu. D. Zavartsev, A. I. Zagumennyi, V. V. Osiko, P. A. Studenikin, “Efficient 3-μm Cr3+Yb3+:Ho3+:YSGG crystal laser,” Quantum Electron. 26, 771–772 (1996).
[CrossRef]

A. F. Umyskov, Yu. D. Zavartsev, A. I. Zagumennyi, V. V. Osiko, P. A. Studenikin, “Cr3+:Yb3+:Ho3+:YSGG crystal laser with a continuously tunable emission wavelength in the range 2.84–3.05 μm,” Quantum Electron. 26, 563–564 (1996).
[CrossRef]

R. Walti, W. Luthy, H. P. Weber, S. Ya. Rusanow, A. A. Yakovlev, A. I. Zagumenyi, I. Shcherbakov, A. F. Umyskov, “Yb3+/Ho3+ energy exchange mechanisms in Yb:Ho:YAG crystals for 2 μm or 540 nm lasing,” J. Quant. Spectrosc. Radiat. Transfer 54, 671–681 (1995).
[CrossRef]

Vasiliev, S. A.

A. S. Kurkov, E. M. Dianov, O. I. Medvedkov, G. A. Ivanov, V. A. Aksenov, V. M. Paramonov, S. A. Vasiliev, E. V. Pershina, “Efficient silica-based Ho3+ fibre laser for 2 μm spectral region pumped at 1.15 μm,” Electron. Lett. 36, 1015–1016 (2000).
[CrossRef]

Walti, R.

R. Walti, W. Luthy, H. P. Weber, S. Ya. Rusanow, A. A. Yakovlev, A. I. Zagumenyi, I. Shcherbakov, A. F. Umyskov, “Yb3+/Ho3+ energy exchange mechanisms in Yb:Ho:YAG crystals for 2 μm or 540 nm lasing,” J. Quant. Spectrosc. Radiat. Transfer 54, 671–681 (1995).
[CrossRef]

Watts, R. K.

R. K. Watts, H. J. Richter, “Diffusion and transfer of optical excitation in YF3:Yb, Ho,” Phys. Rev. B 6, 1584–1589 (1972).
[CrossRef]

Weber, H. P.

T. Rothacher, W. Luthy, H. P. Weber, “Diode pumping and laser properties of Yb,Ho:YAG,” Opt. Commun. 155, 68–72 (1998).
[CrossRef]

R. Walti, W. Luthy, H. P. Weber, S. Ya. Rusanow, A. A. Yakovlev, A. I. Zagumenyi, I. Shcherbakov, A. F. Umyskov, “Yb3+/Ho3+ energy exchange mechanisms in Yb:Ho:YAG crystals for 2 μm or 540 nm lasing,” J. Quant. Spectrosc. Radiat. Transfer 54, 671–681 (1995).
[CrossRef]

Weber, P. M.

Yakovlev, A. A.

R. Walti, W. Luthy, H. P. Weber, S. Ya. Rusanow, A. A. Yakovlev, A. I. Zagumenyi, I. Shcherbakov, A. F. Umyskov, “Yb3+/Ho3+ energy exchange mechanisms in Yb:Ho:YAG crystals for 2 μm or 540 nm lasing,” J. Quant. Spectrosc. Radiat. Transfer 54, 671–681 (1995).
[CrossRef]

Zagumennyi, A. I.

A. F. Umyskov, Yu. D. Zavartsev, A. I. Zagumennyi, V. V. Osiko, P. A. Studenikin, “Cr3+:Yb3+:Ho3+:YSGG crystal laser with a continuously tunable emission wavelength in the range 2.84–3.05 μm,” Quantum Electron. 26, 563–564 (1996).
[CrossRef]

A. F. Umyskov, Yu. D. Zavartsev, A. I. Zagumennyi, V. V. Osiko, P. A. Studenikin, “Efficient 3-μm Cr3+Yb3+:Ho3+:YSGG crystal laser,” Quantum Electron. 26, 771–772 (1996).
[CrossRef]

Zagumenyi, A. I.

R. Walti, W. Luthy, H. P. Weber, S. Ya. Rusanow, A. A. Yakovlev, A. I. Zagumenyi, I. Shcherbakov, A. F. Umyskov, “Yb3+/Ho3+ energy exchange mechanisms in Yb:Ho:YAG crystals for 2 μm or 540 nm lasing,” J. Quant. Spectrosc. Radiat. Transfer 54, 671–681 (1995).
[CrossRef]

Zavartsev, Yu. D.

A. F. Umyskov, Yu. D. Zavartsev, A. I. Zagumennyi, V. V. Osiko, P. A. Studenikin, “Cr3+:Yb3+:Ho3+:YSGG crystal laser with a continuously tunable emission wavelength in the range 2.84–3.05 μm,” Quantum Electron. 26, 563–564 (1996).
[CrossRef]

A. F. Umyskov, Yu. D. Zavartsev, A. I. Zagumennyi, V. V. Osiko, P. A. Studenikin, “Efficient 3-μm Cr3+Yb3+:Ho3+:YSGG crystal laser,” Quantum Electron. 26, 771–772 (1996).
[CrossRef]

Appl. Phys. Lett.

L. Esterowitz, J. Noonan, J. Bahler, “Enhancement in a Ho3+-Yb3+ quantum counter by energy transfer,” Appl. Phys. Lett. 10, 126–127 (1967).
[CrossRef]

Electron. Lett.

A. S. Kurkov, E. M. Dianov, O. I. Medvedkov, G. A. Ivanov, V. A. Aksenov, V. M. Paramonov, S. A. Vasiliev, E. V. Pershina, “Efficient silica-based Ho3+ fibre laser for 2 μm spectral region pumped at 1.15 μm,” Electron. Lett. 36, 1015–1016 (2000).
[CrossRef]

D. C. Hanna, R. M. Percival, R. G. Smart, J. E. Townsend, A. C. Tropper, “Continuous-wave oscillation of holmium-doped silica fibre laser,” Electron. Lett. 25, 593–594 (1989).
[CrossRef]

J. Appl. Phys.

A. Diening, S. Kuck, “Spectroscopy and diode-pumped laser oscillation of Yb3+, Ho3+-doped yttrium scandium gallium garnet,” J. Appl. Phys. 87, 4063–4068 (2000).
[CrossRef]

J. Quant. Spectrosc. Radiat. Transfer

R. Walti, W. Luthy, H. P. Weber, S. Ya. Rusanow, A. A. Yakovlev, A. I. Zagumenyi, I. Shcherbakov, A. F. Umyskov, “Yb3+/Ho3+ energy exchange mechanisms in Yb:Ho:YAG crystals for 2 μm or 540 nm lasing,” J. Quant. Spectrosc. Radiat. Transfer 54, 671–681 (1995).
[CrossRef]

Laser Phys.

A. Diening, P. E.-A. Mobert, E. Heumann, G. Huber, B. H. T. Chai, “Diode-pumped CW lasing of Yb,Ho:KYF4 in the 3 μm spectral range in comparison to Er:KYF4,” Laser Phys. 8, 214–217 (1998).

Opt. Commun.

T. Rothacher, W. Luthy, H. P. Weber, “Diode pumping and laser properties of Yb,Ho:YAG,” Opt. Commun. 155, 68–72 (1998).
[CrossRef]

Opt. Lett.

Phys. Rev. B

R. K. Watts, H. J. Richter, “Diffusion and transfer of optical excitation in YF3:Yb, Ho,” Phys. Rev. B 6, 1584–1589 (1972).
[CrossRef]

Quantum Electron.

A. F. Umyskov, Yu. D. Zavartsev, A. I. Zagumennyi, V. V. Osiko, P. A. Studenikin, “Cr3+:Yb3+:Ho3+:YSGG crystal laser with a continuously tunable emission wavelength in the range 2.84–3.05 μm,” Quantum Electron. 26, 563–564 (1996).
[CrossRef]

A. F. Umyskov, Yu. D. Zavartsev, A. I. Zagumennyi, V. V. Osiko, P. A. Studenikin, “Efficient 3-μm Cr3+Yb3+:Ho3+:YSGG crystal laser,” Quantum Electron. 26, 771–772 (1996).
[CrossRef]

Other

A. A. Nikitichev, V. A. Serebryakov, “Average power limits of diode-laser-pumped Ho:YAG lasers,” in Laser Physics, A. A. Mak, ed., Proc. SPIE2095, 194–201 (1993).

A. Diening, B.-M. Dicks, E. Heumann, R. Gross, G. Huber, “970 nm diode pumped Yb,Tm and Yb,Ho:YAG laser in the 2 μm spectral region,” in Advanced Solid State Lasers, C. R. Pollock, W. R. Bosenberg, eds., Vol. 10 of OSA Trends in Optics and Photonics Series (Optical Society of America, Washington, D.C., 1997), pp. 202–204.

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Figures (4)

Fig. 1
Fig. 1

Simplified energy level diagram of the Yb3+, Ho3+ doubly doped system showing the absorption transition, the energy-transfer process, the laser transition, and the transitions from which the visible emission originates.

Fig. 2
Fig. 2

Measured slope efficiency and launched pump power at threshold as a function of length of the Yb3+, Ho3+-doped silica double-clad fiber.

Fig. 3
Fig. 3

Measured output from the Yb3+, Ho3+-doped silica double-clad fiber laser as a function of launched pump for an optimal fiber length of 1.1 m.

Fig. 4
Fig. 4

Measured optical spectrum in the range of 350–1600 nm. The resolution was 5 nm. Inset (a) shows the visible spectrum in the range of 460–500 nm where the resolution was 0.1 nm. Inset (b) shows the visible spectrum in the range of 620–680 nm where the resolution was 0.1 nm.

Equations (2)

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5F5 ETU: 2F5/2, 5I72F7/2, 5F5, ESA: 5I75F5, 5F4-5S2 ETU: 2F5/2, 5I62F7/2, 5F4, ESA: 5I65F4, 5F3 ETU: 2F5/2, 5I62F7/2, 5F4, 2F5/2, 5F42F7/2, 5G3, ESA: 5I65F45G3.
RET=k1NYb,2NHo,1-k2NYb,1NHo,3.

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