Abstract

High power, highly efficient single frequency oscillation of Er:YAG fiber-bulk hybrid laser at 1645 nm is demonstrated in actively and passively Q-switched operation modes. The slope efficiencies in the active and passive Q-switched operation reached 75% and 20%, respectively, with the record output powers in the narrow-linewidth and single longitudinal mode regimes of operation.

© 2008 Optical Society of America

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  1. D. Y. Shen, J. K. Sahu, and W. A. Clarkson, "Highly efficient in-band pumped Er:YAG lasers with >60 W of output at 1645 nm," Opt. Lett. 31, 754-756 (2006).
    [CrossRef] [PubMed]
  2. D. Y. Shen, J. K. Sahu, and W. A. Clarkson, "Electro-optically Q-switched Er:YAG laser in-band pumped by an Er Yb fiber laser," Advanced Solid-State Photonics 2006 Nevada WD4 (2006).
  3. Y. E. Young, S. D. Setzler, K. J. Snell, P. A. Budni, T. M. Pollak, and E. P. Chicklis, "Efficient 1645 nm Er:YAG laser," Opt. Lett. 29, 1075-1077 (2004).
    [CrossRef] [PubMed]
  4. Q1. S. D. Setzler, M. P. Francis, Y. E. Young, J. R. Konves, and E. P. Chicklis, "Resonantly pumped eyesafe erbium lasers," IEEE J. Sel. Top. Quantum Electron. 11, 645-657 (2005).
    [CrossRef]
  5. K. Spariosu, V. Leyva, R. A. Reeder, and M. J. Klotz, "Efficient Er:YAG laser operating at 1645 and 1617 nm," IEEE J. Quantum Electron. 42, 182-186 (2006).
    [CrossRef]
  6. J. W. Kim, D. Y. Shen, J. K. Sahu, and W. A. Clarkson, "High-power in-band pumped Er:YAG laser at 1617 nm," Opt. Express 16,5807-5812 (2008).
    [CrossRef] [PubMed]
  7. V. Leyva and K. Spariosu, "Power scaling of 1617-nm Er:YAG laser operation using a narrow bandwidth output coupler," Proc. SPIE 6100, 61000C (2006).
    [CrossRef]
  8. Q2. R. D. Stultz, V. Leyv, and K. Spariosu, "Short pulse, high-repetition rate, passively Q-switched Er:yttriumaluminum-garnet laser at 1.6 microns," Appl. Phys. Lett. 87, 241118 (2005). 9. S. Mirov, V. Fedorov, I. Moskalev, and D. Martyshkin, "Recent progress in transition metal doped II-VI mid-IR lasers," IEEE Sel. Top. Quantum Electron.(Invited paper),  13, 810-822 (2007).
    [CrossRef]

2008

2007

Q2. R. D. Stultz, V. Leyv, and K. Spariosu, "Short pulse, high-repetition rate, passively Q-switched Er:yttriumaluminum-garnet laser at 1.6 microns," Appl. Phys. Lett. 87, 241118 (2005). 9. S. Mirov, V. Fedorov, I. Moskalev, and D. Martyshkin, "Recent progress in transition metal doped II-VI mid-IR lasers," IEEE Sel. Top. Quantum Electron.(Invited paper),  13, 810-822 (2007).
[CrossRef]

2006

V. Leyva and K. Spariosu, "Power scaling of 1617-nm Er:YAG laser operation using a narrow bandwidth output coupler," Proc. SPIE 6100, 61000C (2006).
[CrossRef]

D. Y. Shen, J. K. Sahu, and W. A. Clarkson, "Highly efficient in-band pumped Er:YAG lasers with >60 W of output at 1645 nm," Opt. Lett. 31, 754-756 (2006).
[CrossRef] [PubMed]

K. Spariosu, V. Leyva, R. A. Reeder, and M. J. Klotz, "Efficient Er:YAG laser operating at 1645 and 1617 nm," IEEE J. Quantum Electron. 42, 182-186 (2006).
[CrossRef]

2005

Q1. S. D. Setzler, M. P. Francis, Y. E. Young, J. R. Konves, and E. P. Chicklis, "Resonantly pumped eyesafe erbium lasers," IEEE J. Sel. Top. Quantum Electron. 11, 645-657 (2005).
[CrossRef]

2004

Budni, P. A.

Chicklis, E. P.

Q1. S. D. Setzler, M. P. Francis, Y. E. Young, J. R. Konves, and E. P. Chicklis, "Resonantly pumped eyesafe erbium lasers," IEEE J. Sel. Top. Quantum Electron. 11, 645-657 (2005).
[CrossRef]

Y. E. Young, S. D. Setzler, K. J. Snell, P. A. Budni, T. M. Pollak, and E. P. Chicklis, "Efficient 1645 nm Er:YAG laser," Opt. Lett. 29, 1075-1077 (2004).
[CrossRef] [PubMed]

Clarkson, W. A.

Francis, M. P.

Q1. S. D. Setzler, M. P. Francis, Y. E. Young, J. R. Konves, and E. P. Chicklis, "Resonantly pumped eyesafe erbium lasers," IEEE J. Sel. Top. Quantum Electron. 11, 645-657 (2005).
[CrossRef]

Kim, J. W.

Klotz, M. J.

K. Spariosu, V. Leyva, R. A. Reeder, and M. J. Klotz, "Efficient Er:YAG laser operating at 1645 and 1617 nm," IEEE J. Quantum Electron. 42, 182-186 (2006).
[CrossRef]

Konves, J. R.

Q1. S. D. Setzler, M. P. Francis, Y. E. Young, J. R. Konves, and E. P. Chicklis, "Resonantly pumped eyesafe erbium lasers," IEEE J. Sel. Top. Quantum Electron. 11, 645-657 (2005).
[CrossRef]

Leyv, V.

Q2. R. D. Stultz, V. Leyv, and K. Spariosu, "Short pulse, high-repetition rate, passively Q-switched Er:yttriumaluminum-garnet laser at 1.6 microns," Appl. Phys. Lett. 87, 241118 (2005). 9. S. Mirov, V. Fedorov, I. Moskalev, and D. Martyshkin, "Recent progress in transition metal doped II-VI mid-IR lasers," IEEE Sel. Top. Quantum Electron.(Invited paper),  13, 810-822 (2007).
[CrossRef]

Leyva, V.

V. Leyva and K. Spariosu, "Power scaling of 1617-nm Er:YAG laser operation using a narrow bandwidth output coupler," Proc. SPIE 6100, 61000C (2006).
[CrossRef]

K. Spariosu, V. Leyva, R. A. Reeder, and M. J. Klotz, "Efficient Er:YAG laser operating at 1645 and 1617 nm," IEEE J. Quantum Electron. 42, 182-186 (2006).
[CrossRef]

Pollak, T. M.

Reeder, R. A.

K. Spariosu, V. Leyva, R. A. Reeder, and M. J. Klotz, "Efficient Er:YAG laser operating at 1645 and 1617 nm," IEEE J. Quantum Electron. 42, 182-186 (2006).
[CrossRef]

Sahu, J. K.

Setzler, S. D.

Q1. S. D. Setzler, M. P. Francis, Y. E. Young, J. R. Konves, and E. P. Chicklis, "Resonantly pumped eyesafe erbium lasers," IEEE J. Sel. Top. Quantum Electron. 11, 645-657 (2005).
[CrossRef]

Y. E. Young, S. D. Setzler, K. J. Snell, P. A. Budni, T. M. Pollak, and E. P. Chicklis, "Efficient 1645 nm Er:YAG laser," Opt. Lett. 29, 1075-1077 (2004).
[CrossRef] [PubMed]

Shen, D. Y.

Snell, K. J.

Spariosu, K.

Q2. R. D. Stultz, V. Leyv, and K. Spariosu, "Short pulse, high-repetition rate, passively Q-switched Er:yttriumaluminum-garnet laser at 1.6 microns," Appl. Phys. Lett. 87, 241118 (2005). 9. S. Mirov, V. Fedorov, I. Moskalev, and D. Martyshkin, "Recent progress in transition metal doped II-VI mid-IR lasers," IEEE Sel. Top. Quantum Electron.(Invited paper),  13, 810-822 (2007).
[CrossRef]

V. Leyva and K. Spariosu, "Power scaling of 1617-nm Er:YAG laser operation using a narrow bandwidth output coupler," Proc. SPIE 6100, 61000C (2006).
[CrossRef]

K. Spariosu, V. Leyva, R. A. Reeder, and M. J. Klotz, "Efficient Er:YAG laser operating at 1645 and 1617 nm," IEEE J. Quantum Electron. 42, 182-186 (2006).
[CrossRef]

Stultz, R. D.

Q2. R. D. Stultz, V. Leyv, and K. Spariosu, "Short pulse, high-repetition rate, passively Q-switched Er:yttriumaluminum-garnet laser at 1.6 microns," Appl. Phys. Lett. 87, 241118 (2005). 9. S. Mirov, V. Fedorov, I. Moskalev, and D. Martyshkin, "Recent progress in transition metal doped II-VI mid-IR lasers," IEEE Sel. Top. Quantum Electron.(Invited paper),  13, 810-822 (2007).
[CrossRef]

Young, Y. E.

Q1. S. D. Setzler, M. P. Francis, Y. E. Young, J. R. Konves, and E. P. Chicklis, "Resonantly pumped eyesafe erbium lasers," IEEE J. Sel. Top. Quantum Electron. 11, 645-657 (2005).
[CrossRef]

Y. E. Young, S. D. Setzler, K. J. Snell, P. A. Budni, T. M. Pollak, and E. P. Chicklis, "Efficient 1645 nm Er:YAG laser," Opt. Lett. 29, 1075-1077 (2004).
[CrossRef] [PubMed]

IEEE J. Quantum Electron.

K. Spariosu, V. Leyva, R. A. Reeder, and M. J. Klotz, "Efficient Er:YAG laser operating at 1645 and 1617 nm," IEEE J. Quantum Electron. 42, 182-186 (2006).
[CrossRef]

IEEE J. Sel. Top. Quantum Electron.

Q1. S. D. Setzler, M. P. Francis, Y. E. Young, J. R. Konves, and E. P. Chicklis, "Resonantly pumped eyesafe erbium lasers," IEEE J. Sel. Top. Quantum Electron. 11, 645-657 (2005).
[CrossRef]

IEEE Sel. Top. Quantum Electron.

Q2. R. D. Stultz, V. Leyv, and K. Spariosu, "Short pulse, high-repetition rate, passively Q-switched Er:yttriumaluminum-garnet laser at 1.6 microns," Appl. Phys. Lett. 87, 241118 (2005). 9. S. Mirov, V. Fedorov, I. Moskalev, and D. Martyshkin, "Recent progress in transition metal doped II-VI mid-IR lasers," IEEE Sel. Top. Quantum Electron.(Invited paper),  13, 810-822 (2007).
[CrossRef]

Opt. Express

Opt. Lett.

Proc. SPIE

V. Leyva and K. Spariosu, "Power scaling of 1617-nm Er:YAG laser operation using a narrow bandwidth output coupler," Proc. SPIE 6100, 61000C (2006).
[CrossRef]

Other

D. Y. Shen, J. K. Sahu, and W. A. Clarkson, "Electro-optically Q-switched Er:YAG laser in-band pumped by an Er Yb fiber laser," Advanced Solid-State Photonics 2006 Nevada WD4 (2006).

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Figures (6)

Fig. 1.
Fig. 1.

Optical scheme of the optimal Er:YAG laser linear cavity with Bragg grating output coupler.

Fig. 2.
Fig. 2.

Er:YAG linear laser cavity Input-Output characteristics in the CW and 10 kHz Q-switched regimes of operation with the AOM Q-switch in the cavity and with the 76% Bragg grating output coupler.

Fig. 3.
Fig. 3.

The pulse shape of the AOM Q-switched Er:YAG linear cavity laser at 10 kHz repetition rate at the maximum average output power of 11.5 W. (a). The mode-beating spectrum shows that the laser operates in two longitudinal modes regime. The FWHM pulse length is ~40 ns. (b). The mode-beating spectrum shows that the laser operates in the single-longitudinal-mode (SLM) regime. The FWHM pulse length is ~43 ns. Long-term statistical analysis of the mode-beating spectrum reveals that the laser operates in 2-lngitudinal mode regime for about 70% of the time and in the SLM regime in 30% of cases.

Fig. 4.
Fig. 4.

Schematic diagram of the optical scheme of the passively Q-switched Er:YAG laser.

Fig. 5.
Fig. 5.

(a). Average output power vs pump of the passively Q-switched Er:YAG SLM laser. (b). Output energy vs pump of the passively Q-switched Er:YAG SLM laser. The pulse repetition rate changes from 0.67 to 7.14 kHz as the pump power is increased.

Fig. 6.
Fig. 6.

(a). Time-resolved trace of the output pulses. The laser is clearly operating in single-longitudinal mode regime with the pulse length at FWHM of ~65 ns. (b). The pulse train of the passively Q-switched Er:YAG laser.

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