Abstract

We demonstrate an efficient and compact yellow-green laser at 556 nm generated by intracavity frequency doubling of a continuous wave (CW) laser diode-pumped Nd:YAG laser at 1112 nm. An lithium triborate (LBO) crystal, cut for critical type I phase matching at room temperature, is used for second-harmonic generation (SHG) of the fundamental laser. With an incident pump power of 18 W, as high as 3.2 W of CW output power at 556 nm is achieved. The optical-to-optical conversion efficiency is as high as 17.8%, and the output power stability in 3 h is better than ±4.58%. To the best of our knowledge, this is the highest watt-level yellow-green laser generated by frequency doubling of a diode-pumped Nd:YAG laser at 1112 nm.

© 2009 Optical Society of America

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References

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  1. S. Singh, R. G. Smith, and L. G. Van Uiter, “Stimulated-emission cross section and fluorescent quantum efficiency of Nd3+ in yttrium aluminum garnet at room temperature,” Phys. Rev. B 10, 2566-2572 (1974).
    [CrossRef]
  2. N. Moore and W. A. Clarkson, “Efficient operation of a diode-bar-pumped Nd:YAG laser on the low-gain 1123 nm line,” Appl. Opt. 38, 5761-5764 (1999).
    [CrossRef]
  3. Y. F. Chen and Y. P. Lan, “High-power diode-pumped actively Q-switched Nd:YAG laser at 1123 nm,” Opt. Commun. 234, 309-313 (2004).
    [CrossRef]
  4. Y. F. Chen and Y. P. Lan, “Diode-pumped passively Q-switched Nd:YAG laser at 1123 nm,” Appl. Phys. B: Photophys. Laser Chem. 79, 29-31 (2004).
    [CrossRef]
  5. X. Guo and M. Chen, “Diode-pumped 1123 nm Nd:YAG laser,” Chin. Opt. Lett. 2, 402-404 (2004).
  6. Z. Cai and M. Chen, “Diode end-pumped 1123 nm Nd:YAG laser with 2.6 W output power,” Chin. Opt. Lett. 3, 281-282 (2005).
  7. F. Jia and Q. Zheng, “Yellow light generation by frequency doubling of a diode-pumped Nd:YAG laser,” Opt. Commun. 259, 212-215 (2006).
    [CrossRef]
  8. W. Koechner, Solid State Laser Engineering (Science Press, Beijing, 2002).

2006 (1)

F. Jia and Q. Zheng, “Yellow light generation by frequency doubling of a diode-pumped Nd:YAG laser,” Opt. Commun. 259, 212-215 (2006).
[CrossRef]

2005 (1)

2004 (3)

Y. F. Chen and Y. P. Lan, “High-power diode-pumped actively Q-switched Nd:YAG laser at 1123 nm,” Opt. Commun. 234, 309-313 (2004).
[CrossRef]

Y. F. Chen and Y. P. Lan, “Diode-pumped passively Q-switched Nd:YAG laser at 1123 nm,” Appl. Phys. B: Photophys. Laser Chem. 79, 29-31 (2004).
[CrossRef]

X. Guo and M. Chen, “Diode-pumped 1123 nm Nd:YAG laser,” Chin. Opt. Lett. 2, 402-404 (2004).

1999 (1)

1974 (1)

S. Singh, R. G. Smith, and L. G. Van Uiter, “Stimulated-emission cross section and fluorescent quantum efficiency of Nd3+ in yttrium aluminum garnet at room temperature,” Phys. Rev. B 10, 2566-2572 (1974).
[CrossRef]

Cai, Z.

Chen, M.

Chen, Y. F.

Y. F. Chen and Y. P. Lan, “High-power diode-pumped actively Q-switched Nd:YAG laser at 1123 nm,” Opt. Commun. 234, 309-313 (2004).
[CrossRef]

Y. F. Chen and Y. P. Lan, “Diode-pumped passively Q-switched Nd:YAG laser at 1123 nm,” Appl. Phys. B: Photophys. Laser Chem. 79, 29-31 (2004).
[CrossRef]

Clarkson, W. A.

Guo, X.

Jia, F.

F. Jia and Q. Zheng, “Yellow light generation by frequency doubling of a diode-pumped Nd:YAG laser,” Opt. Commun. 259, 212-215 (2006).
[CrossRef]

Koechner, W.

W. Koechner, Solid State Laser Engineering (Science Press, Beijing, 2002).

Lan, Y. P.

Y. F. Chen and Y. P. Lan, “Diode-pumped passively Q-switched Nd:YAG laser at 1123 nm,” Appl. Phys. B: Photophys. Laser Chem. 79, 29-31 (2004).
[CrossRef]

Y. F. Chen and Y. P. Lan, “High-power diode-pumped actively Q-switched Nd:YAG laser at 1123 nm,” Opt. Commun. 234, 309-313 (2004).
[CrossRef]

Moore, N.

Singh, S.

S. Singh, R. G. Smith, and L. G. Van Uiter, “Stimulated-emission cross section and fluorescent quantum efficiency of Nd3+ in yttrium aluminum garnet at room temperature,” Phys. Rev. B 10, 2566-2572 (1974).
[CrossRef]

Smith, R. G.

S. Singh, R. G. Smith, and L. G. Van Uiter, “Stimulated-emission cross section and fluorescent quantum efficiency of Nd3+ in yttrium aluminum garnet at room temperature,” Phys. Rev. B 10, 2566-2572 (1974).
[CrossRef]

Van Uiter, L. G.

S. Singh, R. G. Smith, and L. G. Van Uiter, “Stimulated-emission cross section and fluorescent quantum efficiency of Nd3+ in yttrium aluminum garnet at room temperature,” Phys. Rev. B 10, 2566-2572 (1974).
[CrossRef]

Zheng, Q.

F. Jia and Q. Zheng, “Yellow light generation by frequency doubling of a diode-pumped Nd:YAG laser,” Opt. Commun. 259, 212-215 (2006).
[CrossRef]

Appl. Opt. (1)

Appl. Phys. B: Photophys. Laser Chem. (1)

Y. F. Chen and Y. P. Lan, “Diode-pumped passively Q-switched Nd:YAG laser at 1123 nm,” Appl. Phys. B: Photophys. Laser Chem. 79, 29-31 (2004).
[CrossRef]

Chin. Opt. Lett. (2)

Opt. Commun. (2)

F. Jia and Q. Zheng, “Yellow light generation by frequency doubling of a diode-pumped Nd:YAG laser,” Opt. Commun. 259, 212-215 (2006).
[CrossRef]

Y. F. Chen and Y. P. Lan, “High-power diode-pumped actively Q-switched Nd:YAG laser at 1123 nm,” Opt. Commun. 234, 309-313 (2004).
[CrossRef]

Phys. Rev. B (1)

S. Singh, R. G. Smith, and L. G. Van Uiter, “Stimulated-emission cross section and fluorescent quantum efficiency of Nd3+ in yttrium aluminum garnet at room temperature,” Phys. Rev. B 10, 2566-2572 (1974).
[CrossRef]

Other (1)

W. Koechner, Solid State Laser Engineering (Science Press, Beijing, 2002).

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Figures (7)

Fig. 1
Fig. 1

Transmissivity of the left side of the Nd:YAG crystal.

Fig. 2
Fig. 2

Transmissivity of the output coupler of the 556 nm laser.

Fig. 3
Fig. 3

Schematic of the intracavity frequency doubling of the Nd:YAG/LBO crystal at 556 nm.

Fig. 4
Fig. 4

Spectral of the 556 nm yellow-green laser.

Fig. 5
Fig. 5

Output power at 556 nm versus incident pump power.

Fig. 6
Fig. 6

Beam spot of the 556 nm yellow-green laser.

Fig. 7
Fig. 7

Beam profile of the 556 nm yellow-green laser.

Tables (1)

Tables Icon

Table 1 Comparison of the Frequency-Doubling Parameters of KTP and LBO

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