Abstract

A gain-switched Tm-doped double-clad silica fiber laser operating at a wavelength of approximately 2µm with moderate output energy of 14.7mJ per pulse and a slope efficiency of 39.5% (with respect to launched pump energy) is realized pumped at 1.064µm from a Nd:YAG laser. The gain-switched fiber laser pulses are built up by a series of relaxation spikes, and every spike pulse duration is nearly 1µs. The output wavelength becomes longer, and the slope efficiency increases with the increase in fiber length.

© 2005 Optical Society of America

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References

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  1. H. Tai, K. Yamamoto, M. Uchida, “Long-distance simultaneous detection of methane and acetylene by using diode lasers coupled with optical fibers,” IEEE Photon. Technol. Lett. 4, 804-807 (1992).
    [CrossRef]
  2. Ashraf F. El-Sherif, Terence A. King, “Analysis and Optimization of Q-Switched Operation of a Tm3+- Doped silica Fiber Laser Operating at 2µm,” IEEE J. Quantum Electron. 39, 759-765 (2003).
    [CrossRef]
  3. P. S. Golding, S. D. Jackson, P.-K. Tsai, “Efficient high power operation of a Tm-doped silica fiber laser pumped at 1.319µm,” Opt. Commun. 175, 179-183 (2000).
    [CrossRef]
  4. Ashraf F. El-Sherif, Terence A. King, “High-energy, high-brightness Q-switched Tm3+-doped fiber laser using an electro-optic modulator,” Opt. Commun. 218, 337-344 (2003).
    [CrossRef]
  5. Ashraf F. El-Sherif, Terence A. King, “High-peak-power operation of a Q-switched Tm3+-doped silica fiber laser operating near 2µm,” Opt. Lett. 28, 22-24 (2003).
    [CrossRef] [PubMed]
  6. LE. Nelson, E. P. Ippen, H. A. Haus, “Broadly tunable sub-500 fs pulses from an additive-pulse modelocked thulium-doped fiber ring laser,” Appl. Phy. Lett. 67, 19-21 (1995).
    [CrossRef]
  7. R. C. Sharp, D. E. Spock, N. Pan, “190-fs passively mode-lock thulium fiber laser with a low threshold,” Opt. Lett. 21, 881-883 (1996).
    [CrossRef] [PubMed]
  8. B. C. Dickinson, S. D. Jackson, T. A. King, “10mJ total output from a gain-switched Tm-doped fiber laser,” Opt. Commun. 182, 199-203 (2000).
    [CrossRef]
  9. Stuart D. Jackson, Terence A. King, “Efficient Gain-Switched Operation of a Tm-Doped Silica Fiber Laser,” IEEE J. of Quantum Electron. 34, 779-789 (1998).
    [CrossRef]
  10. Jianqiu Xu, Mahendra Prabhu, Jianren Lu, Ken-ichi Ueda, “Efficient double-clad thulium-doped fiber laser with a ring cavity,” Appl. Opt. 40, 1983-1988 (2001).
    [CrossRef]
  11. D. C. Hanna, I. R. Pery, J. R. Lincoln, “1-watt thulium doped CW fiber laser operation at 2-µm,” Opt Commun. 80, 52-56 (1990).
    [CrossRef]
  12. Stuart D. Jackson, Terence A. King, “Dynamics of the output of heavily Tm-doped double-clad silica fibre lasers,” J. Opt. Soc. Am. B 16, 2178-2188(1999).
    [CrossRef]
  13. Stuart D. Jackson, “Cross relaxation and energy transfer upconversion process relevant to the function of 2µm Tm3+-doped silica fibre lasers,” Opt. Commun. 230, 197-203 (2004).
    [CrossRef]
  14. Stuart D. Jackson, Terence A. King, “Theoretical Modeling of Tm-Doped Silica Fiber Lasers,” J. Lightwave Technol. 17, 948-956 (1999).
    [CrossRef]
  15. M. Le Flohic, Pierre-Luc Francois, M. Jean-Yves Allain, F. Sanchez, “Dynamics of the Transient of Emission in Nd3+-doped Fiber Laser,” IEEE J. Quantum Electron. 27, 1910-1921 (1991).
    [CrossRef]
  16. Stuart D.Jackson, Simon Mossman, “Efficiency dependence on the Tm3+ and Al3+ concentrations for Tm3+-doped silica double-clad fiber lasers,” Appl. Opt. 42, 2702-2707 (2003).
    [CrossRef] [PubMed]

Appl. Opt. (2)

Appl. Phy. Lett. (1)

LE. Nelson, E. P. Ippen, H. A. Haus, “Broadly tunable sub-500 fs pulses from an additive-pulse modelocked thulium-doped fiber ring laser,” Appl. Phy. Lett. 67, 19-21 (1995).
[CrossRef]

IEEE J. of Quantum Electron. (1)

Stuart D. Jackson, Terence A. King, “Efficient Gain-Switched Operation of a Tm-Doped Silica Fiber Laser,” IEEE J. of Quantum Electron. 34, 779-789 (1998).
[CrossRef]

IEEE J. Quantum Electron. (2)

M. Le Flohic, Pierre-Luc Francois, M. Jean-Yves Allain, F. Sanchez, “Dynamics of the Transient of Emission in Nd3+-doped Fiber Laser,” IEEE J. Quantum Electron. 27, 1910-1921 (1991).
[CrossRef]

Ashraf F. El-Sherif, Terence A. King, “Analysis and Optimization of Q-Switched Operation of a Tm3+- Doped silica Fiber Laser Operating at 2µm,” IEEE J. Quantum Electron. 39, 759-765 (2003).
[CrossRef]

IEEE Photon. Technol. Lett. (1)

H. Tai, K. Yamamoto, M. Uchida, “Long-distance simultaneous detection of methane and acetylene by using diode lasers coupled with optical fibers,” IEEE Photon. Technol. Lett. 4, 804-807 (1992).
[CrossRef]

J. Lightwave Technol. (1)

J. Opt. Soc. Am. B (1)

Opt Commun. (1)

D. C. Hanna, I. R. Pery, J. R. Lincoln, “1-watt thulium doped CW fiber laser operation at 2-µm,” Opt Commun. 80, 52-56 (1990).
[CrossRef]

Opt. Commun. (4)

Stuart D. Jackson, “Cross relaxation and energy transfer upconversion process relevant to the function of 2µm Tm3+-doped silica fibre lasers,” Opt. Commun. 230, 197-203 (2004).
[CrossRef]

B. C. Dickinson, S. D. Jackson, T. A. King, “10mJ total output from a gain-switched Tm-doped fiber laser,” Opt. Commun. 182, 199-203 (2000).
[CrossRef]

P. S. Golding, S. D. Jackson, P.-K. Tsai, “Efficient high power operation of a Tm-doped silica fiber laser pumped at 1.319µm,” Opt. Commun. 175, 179-183 (2000).
[CrossRef]

Ashraf F. El-Sherif, Terence A. King, “High-energy, high-brightness Q-switched Tm3+-doped fiber laser using an electro-optic modulator,” Opt. Commun. 218, 337-344 (2003).
[CrossRef]

Opt. Lett. (2)

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Figures (9)

Fig. 1.
Fig. 1.

Simplified energy level diagram of the six lowest energy of Tm3+ showing the relevant cross sections, pump and laser transitions.

Fig. 2.
Fig. 2.

Experimental setup of gain-switched Tm3+-doped double-clad silica fiber lasers.

Fig. 3.
Fig. 3.

Measured temporal characteristics from the 8-m-long gain-switched fiber laser which has 59mJ launched. The CH2 is the output laser pulse and the CH1 is the pump pulse.

Fig. 4.
Fig. 4.

Measured output laser pulse temporal characteristics from the 8-m-long gain-switched fiber laser which has 59mJ launched.

Fig. 5.
Fig. 5.

Measured temporal characteristics from the 35-m-long gain-switched fiber laser which has 59mJ launched. The CH2 is the output laser pulse and the CH1 is the pump pulse.

Fig. 6.
Fig. 6.

Measured output laser pulse temporal characteristics from the 35-m-long gain-switched fiber laser which has 59mJ launched.

Fig. 7.
Fig. 7.

Spectrums of the output lasers with the fiber length 35m, 8m and 1m which has 59mJ launched.

Fig. 8.
Fig. 8.

Total output pulse energy from the gain-switched fiber laser as a function of the launched pump energy.

Fig. 9.
Fig. 9.

Measured slope efficiencies and thresholds as a function of fiber length.

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