Abstract

We report a diode-end-pumped continuous wave (cw) Nd:YVO4 laser operation at 1386 nm. A maximum output power of 305 mW is achieved at an incident pump power of 4.24 W, achieving a slope efficiency of 13.9%. To the best of our knowledge, this is the first time that cw operation at this transition of Nd:YVO4 crystal is reported. By using the experimentally measured threshold data, the stimulated-emission cross-section of this gain medium at 1386 nm transition is determined to be 3 × 10-19cm2. In addition, simultaneous cw operation at 1342 nm and 1386 nm is also observed.

© 2005 Optical Society of America

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References

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  1. Y. Inoue, S. Fujikawa, �??Diode-pumped Nd:YAG Laser Producing 122-W CW Power at 1.319 ìm,�?? IEEE J. Quantum Electron. 36, 751-756 (2000)
    [CrossRef]
  2. I. Freitag, Tünnermann, H. Welling, �??Intensity stabilized Nd:YAG ring laser with 1.5W single-frequency output power at 1.357 ìm,�?? Electron. Lett. 33, 777-778 (1997)
    [CrossRef]
  3. A. Di Lieto, P. Minguzzi, V, Magni, �??High-power diffraction limited Nd:YVO4 lasers at 1.34 ìm with compact resonators,�?? Proc. SPIE 4969, 58-69 (2003)
    [CrossRef]
  4. A. Agnesi, A. Guandalini, S. Dell'Acqua, G. Piccinno, �??2.4-W intracavity doubled cw Nd:GdVO4 laser at 670 nm,�?? 2003 Conference on Lasers and Electro-Optics Europe (CLEO/Europe 2003) (IEEE Cat. No. 03TH8666), 2003, 84
  5. Y. F. Chen, T. M. Huang, C. F. Kao, C. L. Wang, S. C. Wang, �??Optimization in scaling fiber-coupled laser-diode end-pumped lasers to higher power: influence of thermal effect,�?? IEEE J. Quantum Electron. 33, 1424-1429 (1997)
    [CrossRef]
  6. P.Zeller and P.Peuser, �??Efficient, multiwatt, continuous-wave laser operation on the 4F3/2-4I9/2 transitions of Nd:YVO4 and Nd:YAG,�?? Opt.Lett. 25, 34-36 (2000)
    [CrossRef]
  7. Weber, Marvin J. Handbook of Laser Wavelengths (CRC Press 1998)
    [CrossRef]
  8. D. K. Sardar, R. M.Yow, �??Stark components of 4F3/2, 4I9/2 and 4I11/2 manifold energy levels and effects of temperature on the laser transition of Nd3+ in YVO4 ,�?? Opt. Mater. 14, 5-11 (2000)
    [CrossRef]
  9. A. Sennaroglu, �??Efficient continuous-wave operation of a diode-pumped Nd:YVO4 laser at 1342 nm,�?? Opt. Commun. 164, 191-197 (1999)
    [CrossRef]
  10. J.G. Jr. Sliney, K. M. Leung, �??Lifetimes of the 4F3/2 state in Nd:YVO4,�?? J. Appl. Phys. 50, 3778-3779 (1979)
    [CrossRef]
  11. A. W. Tucker, M. Birnbaum, C. L.F incher, J. W. Erier, �??Stimulated-emission cross section at 1064 and 1342 nm in Nd:YVO4 ,�?? J. Appl. Phys. 48, 4907-4911 (1977)
    [CrossRef]
  12. A. W. Tucker, M. Birnbaum, C. L. Fincher, �??Stimulated emission cross sections of Nd:YVO4 and Nd:La2Be2O5 (BeL) ,�?? J. Appl. Phys. 52, 3067-3068 (1981)
    [CrossRef]
  13. H. Zhang, X. L. Meng, Li Zhu, C. Wang, Y. T. Chow, M. K. Lu, �??Growth, spectra and influence of annealing effect on laser properties of Nd:YVO4 crystal,�?? Opt. Mater. 14 25-30 (2000)
    [CrossRef]
  14. Y. F. Chen, �??cw dual-wavelength operation of a diode-end-pumped Nd:YVO4 laser,�?? Appl. Phys. B 70, 475- 478 (2000)
    [CrossRef]
  15. A. Sennaroglu, B. Pekerten, �??Experimental and numerical investigation of thermal effects in end-pumped Cr4+:Forsterite lasers near room temperature,�?? IEEE J. Quantum Electron. 34, 1996-2005 (1998)
    [CrossRef]
  16. D. Findlay, R. A. Clay, �??The measurement of internal losses in 4-level lasers,�?? Phys. Lett. 20, 277-278 (1966)
    [CrossRef]

Appl. Phys. B

Y. F. Chen, �??cw dual-wavelength operation of a diode-end-pumped Nd:YVO4 laser,�?? Appl. Phys. B 70, 475- 478 (2000)
[CrossRef]

CLEO/Europe 2003

A. Agnesi, A. Guandalini, S. Dell'Acqua, G. Piccinno, �??2.4-W intracavity doubled cw Nd:GdVO4 laser at 670 nm,�?? 2003 Conference on Lasers and Electro-Optics Europe (CLEO/Europe 2003) (IEEE Cat. No. 03TH8666), 2003, 84

Electron. Lett.

I. Freitag, Tünnermann, H. Welling, �??Intensity stabilized Nd:YAG ring laser with 1.5W single-frequency output power at 1.357 ìm,�?? Electron. Lett. 33, 777-778 (1997)
[CrossRef]

IEEE J. Quantum Electron.

Y. Inoue, S. Fujikawa, �??Diode-pumped Nd:YAG Laser Producing 122-W CW Power at 1.319 ìm,�?? IEEE J. Quantum Electron. 36, 751-756 (2000)
[CrossRef]

Y. F. Chen, T. M. Huang, C. F. Kao, C. L. Wang, S. C. Wang, �??Optimization in scaling fiber-coupled laser-diode end-pumped lasers to higher power: influence of thermal effect,�?? IEEE J. Quantum Electron. 33, 1424-1429 (1997)
[CrossRef]

A. Sennaroglu, B. Pekerten, �??Experimental and numerical investigation of thermal effects in end-pumped Cr4+:Forsterite lasers near room temperature,�?? IEEE J. Quantum Electron. 34, 1996-2005 (1998)
[CrossRef]

J. Appl. Phys.

J.G. Jr. Sliney, K. M. Leung, �??Lifetimes of the 4F3/2 state in Nd:YVO4,�?? J. Appl. Phys. 50, 3778-3779 (1979)
[CrossRef]

A. W. Tucker, M. Birnbaum, C. L.F incher, J. W. Erier, �??Stimulated-emission cross section at 1064 and 1342 nm in Nd:YVO4 ,�?? J. Appl. Phys. 48, 4907-4911 (1977)
[CrossRef]

A. W. Tucker, M. Birnbaum, C. L. Fincher, �??Stimulated emission cross sections of Nd:YVO4 and Nd:La2Be2O5 (BeL) ,�?? J. Appl. Phys. 52, 3067-3068 (1981)
[CrossRef]

Opt. Commun.

A. Sennaroglu, �??Efficient continuous-wave operation of a diode-pumped Nd:YVO4 laser at 1342 nm,�?? Opt. Commun. 164, 191-197 (1999)
[CrossRef]

Opt. Mater.

H. Zhang, X. L. Meng, Li Zhu, C. Wang, Y. T. Chow, M. K. Lu, �??Growth, spectra and influence of annealing effect on laser properties of Nd:YVO4 crystal,�?? Opt. Mater. 14 25-30 (2000)
[CrossRef]

D. K. Sardar, R. M.Yow, �??Stark components of 4F3/2, 4I9/2 and 4I11/2 manifold energy levels and effects of temperature on the laser transition of Nd3+ in YVO4 ,�?? Opt. Mater. 14, 5-11 (2000)
[CrossRef]

Opt.Lett.

P.Zeller and P.Peuser, �??Efficient, multiwatt, continuous-wave laser operation on the 4F3/2-4I9/2 transitions of Nd:YVO4 and Nd:YAG,�?? Opt.Lett. 25, 34-36 (2000)
[CrossRef]

Phys. Lett.

D. Findlay, R. A. Clay, �??The measurement of internal losses in 4-level lasers,�?? Phys. Lett. 20, 277-278 (1966)
[CrossRef]

Proc. SPIE

A. Di Lieto, P. Minguzzi, V, Magni, �??High-power diffraction limited Nd:YVO4 lasers at 1.34 ìm with compact resonators,�?? Proc. SPIE 4969, 58-69 (2003)
[CrossRef]

Other

Weber, Marvin J. Handbook of Laser Wavelengths (CRC Press 1998)
[CrossRef]

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Figures (5)

Fig. 1.
Fig. 1.

Transitions from 4 F 3/2 to 4 I 13/2 manifold and their energy.

Fig. 2.
Fig. 2.

Fluorescence spectrum of Nd:YVO4 crystal from 1200 nm to 1500 nm

Fig. 3.
Fig. 3.

The schematic of the experimental setup.

Fig. 4.
Fig. 4.

Output power at 1386 nm Vs incident pump power

Fig. 5.
Fig. 5.

Spectrum of 1386-nm laser emission

Equations (2)

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σ e = π ( ω p 2 + ω c 2 ) hv p ( T + L ) 4 P th τ f η p .
η p = 1 l 0 l dz 4 ω p 2 ( z ) ω c 2 ( z ) ( ω p 2 ( z ) + ω c 2 ( z ) ) 2 .

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