Abstract

A new method of using thermally induced second-harmonic output depolarization to determine the fractional thermal loading of a diode-pumped Nd:YVO4 laser is proposed. The experimental results show that the fraction of the green output power polarized along the extraordinary axis of a KTP crystal, fe, is an oscillatory function of the absorbed pump power. The fractional thermal loading can be determined by measurement of the difference in the absorbed pump power between the peaks of fe.

© 1998 Optical Society of America

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References

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  1. Y. Kitaoka, S. Ohmori, K. Yamamoto, M. Kato, and T. Sasaki, Appl. Phys. Lett. 63, 299 (1993).
    [CrossRef]
  2. Y. F. Chen, C. F. Kao, T. M. Huang, C. L. Wang, L. J. Lee, and S. C. Wang, IEEE Photon. Technol. Lett. 9, 740 (1997).
    [CrossRef]
  3. Y. F. Chen, T. M. Huang, C. F. Kao, C. L. Wang, and S. C. Wang, IEEE J. Quantum Electron. 33, 1424 (1997).
    [CrossRef]
  4. CASIX, Crystals & Materials Laser Accessories (CASIX, Fujian, China, 1998), pp. 38–41.
  5. R. C. Weast, ed., CRC Handbook of Chemistry and Physics (CRC, Boca Raton, Fla., 1982).
  6. T. S. Chen, V. L. Anderson, and O. Kahan, IEEE J. Quantum Electron. 26, 6 (1990).
    [CrossRef]
  7. T. Y. Fan, IEEE J. Quantum Electron. 29, 1457 (1993).
    [CrossRef]
  8. B. Comaskey, B. D. Moran, G. F. Albrecht, and R. J. Beach, IEEE J. Quantum Electron. 31, 1261 (1995).
    [CrossRef]

1997 (2)

Y. F. Chen, C. F. Kao, T. M. Huang, C. L. Wang, L. J. Lee, and S. C. Wang, IEEE Photon. Technol. Lett. 9, 740 (1997).
[CrossRef]

Y. F. Chen, T. M. Huang, C. F. Kao, C. L. Wang, and S. C. Wang, IEEE J. Quantum Electron. 33, 1424 (1997).
[CrossRef]

1995 (1)

B. Comaskey, B. D. Moran, G. F. Albrecht, and R. J. Beach, IEEE J. Quantum Electron. 31, 1261 (1995).
[CrossRef]

1993 (2)

Y. Kitaoka, S. Ohmori, K. Yamamoto, M. Kato, and T. Sasaki, Appl. Phys. Lett. 63, 299 (1993).
[CrossRef]

T. Y. Fan, IEEE J. Quantum Electron. 29, 1457 (1993).
[CrossRef]

1990 (1)

T. S. Chen, V. L. Anderson, and O. Kahan, IEEE J. Quantum Electron. 26, 6 (1990).
[CrossRef]

Albrecht, G. F.

B. Comaskey, B. D. Moran, G. F. Albrecht, and R. J. Beach, IEEE J. Quantum Electron. 31, 1261 (1995).
[CrossRef]

Anderson, V. L.

T. S. Chen, V. L. Anderson, and O. Kahan, IEEE J. Quantum Electron. 26, 6 (1990).
[CrossRef]

Beach, R. J.

B. Comaskey, B. D. Moran, G. F. Albrecht, and R. J. Beach, IEEE J. Quantum Electron. 31, 1261 (1995).
[CrossRef]

Chen, T. S.

T. S. Chen, V. L. Anderson, and O. Kahan, IEEE J. Quantum Electron. 26, 6 (1990).
[CrossRef]

Chen, Y. F.

Y. F. Chen, T. M. Huang, C. F. Kao, C. L. Wang, and S. C. Wang, IEEE J. Quantum Electron. 33, 1424 (1997).
[CrossRef]

Y. F. Chen, C. F. Kao, T. M. Huang, C. L. Wang, L. J. Lee, and S. C. Wang, IEEE Photon. Technol. Lett. 9, 740 (1997).
[CrossRef]

Comaskey, B.

B. Comaskey, B. D. Moran, G. F. Albrecht, and R. J. Beach, IEEE J. Quantum Electron. 31, 1261 (1995).
[CrossRef]

Fan, T. Y.

T. Y. Fan, IEEE J. Quantum Electron. 29, 1457 (1993).
[CrossRef]

Huang, T. M.

Y. F. Chen, T. M. Huang, C. F. Kao, C. L. Wang, and S. C. Wang, IEEE J. Quantum Electron. 33, 1424 (1997).
[CrossRef]

Y. F. Chen, C. F. Kao, T. M. Huang, C. L. Wang, L. J. Lee, and S. C. Wang, IEEE Photon. Technol. Lett. 9, 740 (1997).
[CrossRef]

Kahan, O.

T. S. Chen, V. L. Anderson, and O. Kahan, IEEE J. Quantum Electron. 26, 6 (1990).
[CrossRef]

Kao, C. F.

Y. F. Chen, T. M. Huang, C. F. Kao, C. L. Wang, and S. C. Wang, IEEE J. Quantum Electron. 33, 1424 (1997).
[CrossRef]

Y. F. Chen, C. F. Kao, T. M. Huang, C. L. Wang, L. J. Lee, and S. C. Wang, IEEE Photon. Technol. Lett. 9, 740 (1997).
[CrossRef]

Kato, M.

Y. Kitaoka, S. Ohmori, K. Yamamoto, M. Kato, and T. Sasaki, Appl. Phys. Lett. 63, 299 (1993).
[CrossRef]

Kitaoka, Y.

Y. Kitaoka, S. Ohmori, K. Yamamoto, M. Kato, and T. Sasaki, Appl. Phys. Lett. 63, 299 (1993).
[CrossRef]

Lee, L. J.

Y. F. Chen, C. F. Kao, T. M. Huang, C. L. Wang, L. J. Lee, and S. C. Wang, IEEE Photon. Technol. Lett. 9, 740 (1997).
[CrossRef]

Moran, B. D.

B. Comaskey, B. D. Moran, G. F. Albrecht, and R. J. Beach, IEEE J. Quantum Electron. 31, 1261 (1995).
[CrossRef]

Ohmori, S.

Y. Kitaoka, S. Ohmori, K. Yamamoto, M. Kato, and T. Sasaki, Appl. Phys. Lett. 63, 299 (1993).
[CrossRef]

Sasaki, T.

Y. Kitaoka, S. Ohmori, K. Yamamoto, M. Kato, and T. Sasaki, Appl. Phys. Lett. 63, 299 (1993).
[CrossRef]

Wang, C. L.

Y. F. Chen, C. F. Kao, T. M. Huang, C. L. Wang, L. J. Lee, and S. C. Wang, IEEE Photon. Technol. Lett. 9, 740 (1997).
[CrossRef]

Y. F. Chen, T. M. Huang, C. F. Kao, C. L. Wang, and S. C. Wang, IEEE J. Quantum Electron. 33, 1424 (1997).
[CrossRef]

Wang, S. C.

Y. F. Chen, T. M. Huang, C. F. Kao, C. L. Wang, and S. C. Wang, IEEE J. Quantum Electron. 33, 1424 (1997).
[CrossRef]

Y. F. Chen, C. F. Kao, T. M. Huang, C. L. Wang, L. J. Lee, and S. C. Wang, IEEE Photon. Technol. Lett. 9, 740 (1997).
[CrossRef]

Yamamoto, K.

Y. Kitaoka, S. Ohmori, K. Yamamoto, M. Kato, and T. Sasaki, Appl. Phys. Lett. 63, 299 (1993).
[CrossRef]

Appl. Phys. Lett. (1)

Y. Kitaoka, S. Ohmori, K. Yamamoto, M. Kato, and T. Sasaki, Appl. Phys. Lett. 63, 299 (1993).
[CrossRef]

IEEE J. Quantum Electron. (4)

Y. F. Chen, T. M. Huang, C. F. Kao, C. L. Wang, and S. C. Wang, IEEE J. Quantum Electron. 33, 1424 (1997).
[CrossRef]

T. S. Chen, V. L. Anderson, and O. Kahan, IEEE J. Quantum Electron. 26, 6 (1990).
[CrossRef]

T. Y. Fan, IEEE J. Quantum Electron. 29, 1457 (1993).
[CrossRef]

B. Comaskey, B. D. Moran, G. F. Albrecht, and R. J. Beach, IEEE J. Quantum Electron. 31, 1261 (1995).
[CrossRef]

IEEE Photon. Technol. Lett. (1)

Y. F. Chen, C. F. Kao, T. M. Huang, C. L. Wang, L. J. Lee, and S. C. Wang, IEEE Photon. Technol. Lett. 9, 740 (1997).
[CrossRef]

Other (2)

CASIX, Crystals & Materials Laser Accessories (CASIX, Fujian, China, 1998), pp. 38–41.

R. C. Weast, ed., CRC Handbook of Chemistry and Physics (CRC, Boca Raton, Fla., 1982).

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Figures (3)

Fig. 1
Fig. 1

Schematic diagram of the diode-pumped frequency-doubled Nd:YVO4 laser: HR, highly reflecting; HT, highly transmitting; AR, antireflecting.

Fig. 2
Fig. 2

Plot of the fraction of the green output power polarized along the extraordinary direction of the KTP crystal, fe, as a function of the absorbed pump power.

Fig. 3
Fig. 3

Plot of the dependence of 1-cosΔδ on the absorbed pump power for several values of the fractional thermal loading.

Equations (4)

Equations on this page are rendered with MathJax. Learn more.

Δδr=4πλ0LdnbdT-dncdT+ΔnαaΔTr, zdz+ΔnL,
ΔTr, z=Tr, z-Trb, z=ξPabs4πKeffαe-az1-e-aL×1-r2ωp2+lnrb2ωp2Θωp2-r2+lnrb2r2Θr2-ωp2,
cosΔδ=2ωs20rbcosΔδrexp-2 r2ωs2rdr.
ξ=λ24πKeffΔPabs×11+lnrb2/ωp2dnb/dT-dnc/dT+Δnαa.

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