Abstract

A diode-cladding-pumped dual wavelength Q-switched Ho3+-doped fluoride cascade fiber laser operating in the mid-infrared is demonstrated. Stable pulse trains from the I65I75 and I75I85 laser transitions were produced, and the μs-level time delay between the pulses from each transition was dependent on the pump power. At maximum pump power and at an acousto-optic modulator repetition rate of 25 kHz, the I65I75 transition pulse operated at 3.005 μm, a pulse energy of 29 μJ, and a pulse width of 380 ns; the I75I85 transition pulse correspondingly produced 7 μJ pulse energy and 260 ns pulse width at 2.074 μm. To the best of our knowledge, this is the first demonstration of a Q-switched fiber laser operating beyond 3 μm.

© 2012 Optical Society of America

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References

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2012 (1)

J. Li, L. Gomes, and S. D. Jackson, IEEE J. Quantum Electron. 48, 596 (2012).
[CrossRef]

2011 (3)

2009 (1)

1999 (1)

T. Sumiyoshi, H. Sekita, T. Arai, S. Sato, M. Ishihara, and M. Kikuchi, IEEE J. Select. Topics Quantum Electron. 5, 936 (1999).
[CrossRef]

1998 (1)

1996 (1)

C. Frerichs and U. B. Unrau, Opt. Fiber Technol. 2, 358 (1996).
[CrossRef]

1994 (1)

C. Frerichs and T. Tauermann, Electron. Lett. 30, 706 (1994).
[CrossRef]

Arai, T.

T. Sumiyoshi, H. Sekita, T. Arai, S. Sato, M. Ishihara, and M. Kikuchi, IEEE J. Select. Topics Quantum Electron. 5, 936 (1999).
[CrossRef]

Copic, M.

Feng, S. H.

N. Libatique, J. Tafoya, S. H. Feng, D. Mirell, and R. Jain, in Advanced Solid State LasersOSA Technical Digest Series (Optical Society of America, 2000), paper MD2.

Frerichs, C.

C. Frerichs and U. B. Unrau, Opt. Fiber Technol. 2, 358 (1996).
[CrossRef]

C. Frerichs and T. Tauermann, Electron. Lett. 30, 706 (1994).
[CrossRef]

Gomes, L.

J. Li, L. Gomes, and S. D. Jackson, IEEE J. Quantum Electron. 48, 596 (2012).
[CrossRef]

Gorjan, M.

Hashida, M.

Hosoya, H.

T. Segi, K. Shima, T. Sakai, and H. Hosoya, in Conference on Lasers and Electro-Optics (CLEO), Technical Digest(Optical Society of America, 2004), paper CThZ5.

Hudson, D. D.

Ishihara, M.

T. Sumiyoshi, H. Sekita, T. Arai, S. Sato, M. Ishihara, and M. Kikuchi, IEEE J. Select. Topics Quantum Electron. 5, 936 (1999).
[CrossRef]

Jackson, S. D.

Jain, R.

N. Libatique, J. Tafoya, S. H. Feng, D. Mirell, and R. Jain, in Advanced Solid State LasersOSA Technical Digest Series (Optical Society of America, 2000), paper MD2.

Kikuchi, M.

T. Sumiyoshi, H. Sekita, T. Arai, S. Sato, M. Ishihara, and M. Kikuchi, IEEE J. Select. Topics Quantum Electron. 5, 936 (1999).
[CrossRef]

Li, J.

J. Li, L. Gomes, and S. D. Jackson, IEEE J. Quantum Electron. 48, 596 (2012).
[CrossRef]

J. Li, D. D. Hudson, and S. D. Jackson, Opt. Lett. 36, 3642 (2011).
[CrossRef]

Libatique, N.

N. Libatique, J. Tafoya, S. H. Feng, D. Mirell, and R. Jain, in Advanced Solid State LasersOSA Technical Digest Series (Optical Society of America, 2000), paper MD2.

Marincek, M.

Mirell, D.

N. Libatique, J. Tafoya, S. H. Feng, D. Mirell, and R. Jain, in Advanced Solid State LasersOSA Technical Digest Series (Optical Society of America, 2000), paper MD2.

Murakami, M.

Petkovšek, R.

Sakabe, S.

Sakai, T.

T. Segi, K. Shima, T. Sakai, and H. Hosoya, in Conference on Lasers and Electro-Optics (CLEO), Technical Digest(Optical Society of America, 2004), paper CThZ5.

Sato, S.

T. Sumiyoshi, H. Sekita, T. Arai, S. Sato, M. Ishihara, and M. Kikuchi, IEEE J. Select. Topics Quantum Electron. 5, 936 (1999).
[CrossRef]

Segi, T.

T. Segi, K. Shima, T. Sakai, and H. Hosoya, in Conference on Lasers and Electro-Optics (CLEO), Technical Digest(Optical Society of America, 2004), paper CThZ5.

Sekita, H.

T. Sumiyoshi, H. Sekita, T. Arai, S. Sato, M. Ishihara, and M. Kikuchi, IEEE J. Select. Topics Quantum Electron. 5, 936 (1999).
[CrossRef]

T. Sumiyoshi and H. Sekita, Opt. Lett. 23, 1837 (1998).
[CrossRef]

Shima, K.

T. Segi, K. Shima, T. Sakai, and H. Hosoya, in Conference on Lasers and Electro-Optics (CLEO), Technical Digest(Optical Society of America, 2004), paper CThZ5.

Shimizu, S.

Sumiyoshi, T.

T. Sumiyoshi, H. Sekita, T. Arai, S. Sato, M. Ishihara, and M. Kikuchi, IEEE J. Select. Topics Quantum Electron. 5, 936 (1999).
[CrossRef]

T. Sumiyoshi and H. Sekita, Opt. Lett. 23, 1837 (1998).
[CrossRef]

Tafoya, J.

N. Libatique, J. Tafoya, S. H. Feng, D. Mirell, and R. Jain, in Advanced Solid State LasersOSA Technical Digest Series (Optical Society of America, 2000), paper MD2.

Tauermann, T.

C. Frerichs and T. Tauermann, Electron. Lett. 30, 706 (1994).
[CrossRef]

Tokita, S.

Unrau, U. B.

C. Frerichs and U. B. Unrau, Opt. Fiber Technol. 2, 358 (1996).
[CrossRef]

Electron. Lett. (1)

C. Frerichs and T. Tauermann, Electron. Lett. 30, 706 (1994).
[CrossRef]

IEEE J. Quantum Electron. (1)

J. Li, L. Gomes, and S. D. Jackson, IEEE J. Quantum Electron. 48, 596 (2012).
[CrossRef]

IEEE J. Select. Topics Quantum Electron. (1)

T. Sumiyoshi, H. Sekita, T. Arai, S. Sato, M. Ishihara, and M. Kikuchi, IEEE J. Select. Topics Quantum Electron. 5, 936 (1999).
[CrossRef]

Opt. Fiber Technol. (1)

C. Frerichs and U. B. Unrau, Opt. Fiber Technol. 2, 358 (1996).
[CrossRef]

Opt. Lett. (5)

Other (2)

N. Libatique, J. Tafoya, S. H. Feng, D. Mirell, and R. Jain, in Advanced Solid State LasersOSA Technical Digest Series (Optical Society of America, 2000), paper MD2.

T. Segi, K. Shima, T. Sakai, and H. Hosoya, in Conference on Lasers and Electro-Optics (CLEO), Technical Digest(Optical Society of America, 2004), paper CThZ5.

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Figures (5)

Fig. 1.
Fig. 1.

Schematic of the experiment setup. D1–D4 represents the pump diodes, pbsrepresents the polarizing beam splitter, and PD1 and PD2 represent the photo detectors. Included is a simplified energy level diagram of the Ho3+ion showing the pump and cascade laser transitions.

Fig. 2.
Fig. 2.

Measured output pulse trains for the I65I75 and I75I85 transitions at the repetition rate of 25 kHz for the maximum launched pump power of 7.4 W. The left inset shows the temporal pulse waveform for I65I75 (solid line) and I75I85 (dashed line) transitions. The right inset shows the time delay between thetwo transitions as a function of launched pump power, PL.

Fig. 3.
Fig. 3.

Measured spectrum of the I65I75 laser transition for CW and pulsed operation at maximum pump power. The inset shows the measured spectrum for the I75I85 laser transition for CW and pulse operation at maximum pump power.

Fig. 4.
Fig. 4.

Measured pulse width of the 3 μm and 2.1 μm transitions as a function of repetition frequency at four different launched pump powers.

Fig. 5.
Fig. 5.

Measured pulse peak power and pulse energy of the I65I75 and I75I85 laser transitions as a function of the repetition rate at a launched pump power of 7.4 W.

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