Abstract

The principal refractive indices and the thermal refractive-index coefficients of 7.5-mol.% Nb:KTiOPO4 crystal were measured by autocollimation for wavelengths of 0.53975, 0.6328, 1.0795, and 1.3414 µm from room temperature to 143 °C. The Sellmeier equations at room temperature were obtained and used to calculate the optimal phase-matched angles for 1.0642 and 1.0795 µm. The calculated and experimental values are in good agreement.

© 1999 Optical Society of America

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  1. W. P. Risk, R. N. Payne, W. Lenth, “Noncritically phase-matched frequency doubling using 994 nm dye and diode laser radiation in KTiOPO4,” Appl. Phys. Lett. 55, 1179–1181 (1989).
    [CrossRef]
  2. C. L. Cheng, L. K. Cheng, R. L. Harlow, J. D. Dieslein, “Blue light generation using bulk single crystals of niobium-doped KTiOPO4,” Appl. Phys. Lett. 64, 155–157 (1994).
    [CrossRef]
  3. F. C. Zusmteg, J. D. Bieslein, T. Gier, “KxRb1-xTiOPO4: a new nonlinear optical material,” J. Appl. Phys. 47, 4980–4985 (1975).
  4. Z. D. Zeng, H. Y. Shen, M. L. Huang, H. Xu, R. R. Zeng, Y. P. Zhou, G. F. Yu, C. H. Huang, “Measurement of the refractive index and thermal refractive index coefficients of Nd:YAP crystal,” Appl. Opt. 29, 1281–1286 (1990).
    [CrossRef] [PubMed]
  5. H. Liao, H. Y. Shen, Z. D. Zeng, T. Q. Zhou, C. H. Huang, R. R. Zeng, G. F. Yu, “Accurate values of the index of refraction and optimum phase match parameters in a flux grown KTiOPO4 crystal,” Opt. Laser Technol. 20, 103–104 (1988).
    [CrossRef]
  6. H. Y. Shen, H. Xu, Z. D. Zeng, W. X. Lin, R. F. Xu, G. F. Yu, “Measurement of refractive indices and thermal refractive-index coefficients of LiNbO3 crystal doped with 5 mol.% MgO,” Appl. Opt. 31, 6695–6697 (1992).
    [CrossRef] [PubMed]
  7. H. Y. Shen, Y. P. Zhou, W. X. Lin, Z. D. Zeng, R. R. Zeng, G. F. Yu, C. H. Huang, A. D. Jiang, S. Q. Jia, D. Z. Shen, “Second harmonic generation and sum frequency mixing of dual wavelength Nd:YAlO3 laser in flux growth KTiOPO4 crystal,” IEEE J. Quantum Electron. 28, 48–51 (1992).
    [CrossRef]
  8. J. Q. Yao, T. S. Fahlen, “Calculation of optimum phase match parameters for the biaxial crystal KTiOPO4,” J. Appl. Phys. 65, 65–68 (1984).
    [CrossRef]

1994 (1)

C. L. Cheng, L. K. Cheng, R. L. Harlow, J. D. Dieslein, “Blue light generation using bulk single crystals of niobium-doped KTiOPO4,” Appl. Phys. Lett. 64, 155–157 (1994).
[CrossRef]

1992 (2)

H. Y. Shen, H. Xu, Z. D. Zeng, W. X. Lin, R. F. Xu, G. F. Yu, “Measurement of refractive indices and thermal refractive-index coefficients of LiNbO3 crystal doped with 5 mol.% MgO,” Appl. Opt. 31, 6695–6697 (1992).
[CrossRef] [PubMed]

H. Y. Shen, Y. P. Zhou, W. X. Lin, Z. D. Zeng, R. R. Zeng, G. F. Yu, C. H. Huang, A. D. Jiang, S. Q. Jia, D. Z. Shen, “Second harmonic generation and sum frequency mixing of dual wavelength Nd:YAlO3 laser in flux growth KTiOPO4 crystal,” IEEE J. Quantum Electron. 28, 48–51 (1992).
[CrossRef]

1990 (1)

1989 (1)

W. P. Risk, R. N. Payne, W. Lenth, “Noncritically phase-matched frequency doubling using 994 nm dye and diode laser radiation in KTiOPO4,” Appl. Phys. Lett. 55, 1179–1181 (1989).
[CrossRef]

1988 (1)

H. Liao, H. Y. Shen, Z. D. Zeng, T. Q. Zhou, C. H. Huang, R. R. Zeng, G. F. Yu, “Accurate values of the index of refraction and optimum phase match parameters in a flux grown KTiOPO4 crystal,” Opt. Laser Technol. 20, 103–104 (1988).
[CrossRef]

1984 (1)

J. Q. Yao, T. S. Fahlen, “Calculation of optimum phase match parameters for the biaxial crystal KTiOPO4,” J. Appl. Phys. 65, 65–68 (1984).
[CrossRef]

1975 (1)

F. C. Zusmteg, J. D. Bieslein, T. Gier, “KxRb1-xTiOPO4: a new nonlinear optical material,” J. Appl. Phys. 47, 4980–4985 (1975).

Bieslein, J. D.

F. C. Zusmteg, J. D. Bieslein, T. Gier, “KxRb1-xTiOPO4: a new nonlinear optical material,” J. Appl. Phys. 47, 4980–4985 (1975).

Cheng, C. L.

C. L. Cheng, L. K. Cheng, R. L. Harlow, J. D. Dieslein, “Blue light generation using bulk single crystals of niobium-doped KTiOPO4,” Appl. Phys. Lett. 64, 155–157 (1994).
[CrossRef]

Cheng, L. K.

C. L. Cheng, L. K. Cheng, R. L. Harlow, J. D. Dieslein, “Blue light generation using bulk single crystals of niobium-doped KTiOPO4,” Appl. Phys. Lett. 64, 155–157 (1994).
[CrossRef]

Dieslein, J. D.

C. L. Cheng, L. K. Cheng, R. L. Harlow, J. D. Dieslein, “Blue light generation using bulk single crystals of niobium-doped KTiOPO4,” Appl. Phys. Lett. 64, 155–157 (1994).
[CrossRef]

Fahlen, T. S.

J. Q. Yao, T. S. Fahlen, “Calculation of optimum phase match parameters for the biaxial crystal KTiOPO4,” J. Appl. Phys. 65, 65–68 (1984).
[CrossRef]

Gier, T.

F. C. Zusmteg, J. D. Bieslein, T. Gier, “KxRb1-xTiOPO4: a new nonlinear optical material,” J. Appl. Phys. 47, 4980–4985 (1975).

Harlow, R. L.

C. L. Cheng, L. K. Cheng, R. L. Harlow, J. D. Dieslein, “Blue light generation using bulk single crystals of niobium-doped KTiOPO4,” Appl. Phys. Lett. 64, 155–157 (1994).
[CrossRef]

Huang, C. H.

H. Y. Shen, Y. P. Zhou, W. X. Lin, Z. D. Zeng, R. R. Zeng, G. F. Yu, C. H. Huang, A. D. Jiang, S. Q. Jia, D. Z. Shen, “Second harmonic generation and sum frequency mixing of dual wavelength Nd:YAlO3 laser in flux growth KTiOPO4 crystal,” IEEE J. Quantum Electron. 28, 48–51 (1992).
[CrossRef]

Z. D. Zeng, H. Y. Shen, M. L. Huang, H. Xu, R. R. Zeng, Y. P. Zhou, G. F. Yu, C. H. Huang, “Measurement of the refractive index and thermal refractive index coefficients of Nd:YAP crystal,” Appl. Opt. 29, 1281–1286 (1990).
[CrossRef] [PubMed]

H. Liao, H. Y. Shen, Z. D. Zeng, T. Q. Zhou, C. H. Huang, R. R. Zeng, G. F. Yu, “Accurate values of the index of refraction and optimum phase match parameters in a flux grown KTiOPO4 crystal,” Opt. Laser Technol. 20, 103–104 (1988).
[CrossRef]

Huang, M. L.

Jia, S. Q.

H. Y. Shen, Y. P. Zhou, W. X. Lin, Z. D. Zeng, R. R. Zeng, G. F. Yu, C. H. Huang, A. D. Jiang, S. Q. Jia, D. Z. Shen, “Second harmonic generation and sum frequency mixing of dual wavelength Nd:YAlO3 laser in flux growth KTiOPO4 crystal,” IEEE J. Quantum Electron. 28, 48–51 (1992).
[CrossRef]

Jiang, A. D.

H. Y. Shen, Y. P. Zhou, W. X. Lin, Z. D. Zeng, R. R. Zeng, G. F. Yu, C. H. Huang, A. D. Jiang, S. Q. Jia, D. Z. Shen, “Second harmonic generation and sum frequency mixing of dual wavelength Nd:YAlO3 laser in flux growth KTiOPO4 crystal,” IEEE J. Quantum Electron. 28, 48–51 (1992).
[CrossRef]

Lenth, W.

W. P. Risk, R. N. Payne, W. Lenth, “Noncritically phase-matched frequency doubling using 994 nm dye and diode laser radiation in KTiOPO4,” Appl. Phys. Lett. 55, 1179–1181 (1989).
[CrossRef]

Liao, H.

H. Liao, H. Y. Shen, Z. D. Zeng, T. Q. Zhou, C. H. Huang, R. R. Zeng, G. F. Yu, “Accurate values of the index of refraction and optimum phase match parameters in a flux grown KTiOPO4 crystal,” Opt. Laser Technol. 20, 103–104 (1988).
[CrossRef]

Lin, W. X.

H. Y. Shen, H. Xu, Z. D. Zeng, W. X. Lin, R. F. Xu, G. F. Yu, “Measurement of refractive indices and thermal refractive-index coefficients of LiNbO3 crystal doped with 5 mol.% MgO,” Appl. Opt. 31, 6695–6697 (1992).
[CrossRef] [PubMed]

H. Y. Shen, Y. P. Zhou, W. X. Lin, Z. D. Zeng, R. R. Zeng, G. F. Yu, C. H. Huang, A. D. Jiang, S. Q. Jia, D. Z. Shen, “Second harmonic generation and sum frequency mixing of dual wavelength Nd:YAlO3 laser in flux growth KTiOPO4 crystal,” IEEE J. Quantum Electron. 28, 48–51 (1992).
[CrossRef]

Payne, R. N.

W. P. Risk, R. N. Payne, W. Lenth, “Noncritically phase-matched frequency doubling using 994 nm dye and diode laser radiation in KTiOPO4,” Appl. Phys. Lett. 55, 1179–1181 (1989).
[CrossRef]

Risk, W. P.

W. P. Risk, R. N. Payne, W. Lenth, “Noncritically phase-matched frequency doubling using 994 nm dye and diode laser radiation in KTiOPO4,” Appl. Phys. Lett. 55, 1179–1181 (1989).
[CrossRef]

Shen, D. Z.

H. Y. Shen, Y. P. Zhou, W. X. Lin, Z. D. Zeng, R. R. Zeng, G. F. Yu, C. H. Huang, A. D. Jiang, S. Q. Jia, D. Z. Shen, “Second harmonic generation and sum frequency mixing of dual wavelength Nd:YAlO3 laser in flux growth KTiOPO4 crystal,” IEEE J. Quantum Electron. 28, 48–51 (1992).
[CrossRef]

Shen, H. Y.

H. Y. Shen, Y. P. Zhou, W. X. Lin, Z. D. Zeng, R. R. Zeng, G. F. Yu, C. H. Huang, A. D. Jiang, S. Q. Jia, D. Z. Shen, “Second harmonic generation and sum frequency mixing of dual wavelength Nd:YAlO3 laser in flux growth KTiOPO4 crystal,” IEEE J. Quantum Electron. 28, 48–51 (1992).
[CrossRef]

H. Y. Shen, H. Xu, Z. D. Zeng, W. X. Lin, R. F. Xu, G. F. Yu, “Measurement of refractive indices and thermal refractive-index coefficients of LiNbO3 crystal doped with 5 mol.% MgO,” Appl. Opt. 31, 6695–6697 (1992).
[CrossRef] [PubMed]

Z. D. Zeng, H. Y. Shen, M. L. Huang, H. Xu, R. R. Zeng, Y. P. Zhou, G. F. Yu, C. H. Huang, “Measurement of the refractive index and thermal refractive index coefficients of Nd:YAP crystal,” Appl. Opt. 29, 1281–1286 (1990).
[CrossRef] [PubMed]

H. Liao, H. Y. Shen, Z. D. Zeng, T. Q. Zhou, C. H. Huang, R. R. Zeng, G. F. Yu, “Accurate values of the index of refraction and optimum phase match parameters in a flux grown KTiOPO4 crystal,” Opt. Laser Technol. 20, 103–104 (1988).
[CrossRef]

Xu, H.

Xu, R. F.

Yao, J. Q.

J. Q. Yao, T. S. Fahlen, “Calculation of optimum phase match parameters for the biaxial crystal KTiOPO4,” J. Appl. Phys. 65, 65–68 (1984).
[CrossRef]

Yu, G. F.

H. Y. Shen, H. Xu, Z. D. Zeng, W. X. Lin, R. F. Xu, G. F. Yu, “Measurement of refractive indices and thermal refractive-index coefficients of LiNbO3 crystal doped with 5 mol.% MgO,” Appl. Opt. 31, 6695–6697 (1992).
[CrossRef] [PubMed]

H. Y. Shen, Y. P. Zhou, W. X. Lin, Z. D. Zeng, R. R. Zeng, G. F. Yu, C. H. Huang, A. D. Jiang, S. Q. Jia, D. Z. Shen, “Second harmonic generation and sum frequency mixing of dual wavelength Nd:YAlO3 laser in flux growth KTiOPO4 crystal,” IEEE J. Quantum Electron. 28, 48–51 (1992).
[CrossRef]

Z. D. Zeng, H. Y. Shen, M. L. Huang, H. Xu, R. R. Zeng, Y. P. Zhou, G. F. Yu, C. H. Huang, “Measurement of the refractive index and thermal refractive index coefficients of Nd:YAP crystal,” Appl. Opt. 29, 1281–1286 (1990).
[CrossRef] [PubMed]

H. Liao, H. Y. Shen, Z. D. Zeng, T. Q. Zhou, C. H. Huang, R. R. Zeng, G. F. Yu, “Accurate values of the index of refraction and optimum phase match parameters in a flux grown KTiOPO4 crystal,” Opt. Laser Technol. 20, 103–104 (1988).
[CrossRef]

Zeng, R. R.

H. Y. Shen, Y. P. Zhou, W. X. Lin, Z. D. Zeng, R. R. Zeng, G. F. Yu, C. H. Huang, A. D. Jiang, S. Q. Jia, D. Z. Shen, “Second harmonic generation and sum frequency mixing of dual wavelength Nd:YAlO3 laser in flux growth KTiOPO4 crystal,” IEEE J. Quantum Electron. 28, 48–51 (1992).
[CrossRef]

Z. D. Zeng, H. Y. Shen, M. L. Huang, H. Xu, R. R. Zeng, Y. P. Zhou, G. F. Yu, C. H. Huang, “Measurement of the refractive index and thermal refractive index coefficients of Nd:YAP crystal,” Appl. Opt. 29, 1281–1286 (1990).
[CrossRef] [PubMed]

H. Liao, H. Y. Shen, Z. D. Zeng, T. Q. Zhou, C. H. Huang, R. R. Zeng, G. F. Yu, “Accurate values of the index of refraction and optimum phase match parameters in a flux grown KTiOPO4 crystal,” Opt. Laser Technol. 20, 103–104 (1988).
[CrossRef]

Zeng, Z. D.

H. Y. Shen, H. Xu, Z. D. Zeng, W. X. Lin, R. F. Xu, G. F. Yu, “Measurement of refractive indices and thermal refractive-index coefficients of LiNbO3 crystal doped with 5 mol.% MgO,” Appl. Opt. 31, 6695–6697 (1992).
[CrossRef] [PubMed]

H. Y. Shen, Y. P. Zhou, W. X. Lin, Z. D. Zeng, R. R. Zeng, G. F. Yu, C. H. Huang, A. D. Jiang, S. Q. Jia, D. Z. Shen, “Second harmonic generation and sum frequency mixing of dual wavelength Nd:YAlO3 laser in flux growth KTiOPO4 crystal,” IEEE J. Quantum Electron. 28, 48–51 (1992).
[CrossRef]

Z. D. Zeng, H. Y. Shen, M. L. Huang, H. Xu, R. R. Zeng, Y. P. Zhou, G. F. Yu, C. H. Huang, “Measurement of the refractive index and thermal refractive index coefficients of Nd:YAP crystal,” Appl. Opt. 29, 1281–1286 (1990).
[CrossRef] [PubMed]

H. Liao, H. Y. Shen, Z. D. Zeng, T. Q. Zhou, C. H. Huang, R. R. Zeng, G. F. Yu, “Accurate values of the index of refraction and optimum phase match parameters in a flux grown KTiOPO4 crystal,” Opt. Laser Technol. 20, 103–104 (1988).
[CrossRef]

Zhou, T. Q.

H. Liao, H. Y. Shen, Z. D. Zeng, T. Q. Zhou, C. H. Huang, R. R. Zeng, G. F. Yu, “Accurate values of the index of refraction and optimum phase match parameters in a flux grown KTiOPO4 crystal,” Opt. Laser Technol. 20, 103–104 (1988).
[CrossRef]

Zhou, Y. P.

H. Y. Shen, Y. P. Zhou, W. X. Lin, Z. D. Zeng, R. R. Zeng, G. F. Yu, C. H. Huang, A. D. Jiang, S. Q. Jia, D. Z. Shen, “Second harmonic generation and sum frequency mixing of dual wavelength Nd:YAlO3 laser in flux growth KTiOPO4 crystal,” IEEE J. Quantum Electron. 28, 48–51 (1992).
[CrossRef]

Z. D. Zeng, H. Y. Shen, M. L. Huang, H. Xu, R. R. Zeng, Y. P. Zhou, G. F. Yu, C. H. Huang, “Measurement of the refractive index and thermal refractive index coefficients of Nd:YAP crystal,” Appl. Opt. 29, 1281–1286 (1990).
[CrossRef] [PubMed]

Zusmteg, F. C.

F. C. Zusmteg, J. D. Bieslein, T. Gier, “KxRb1-xTiOPO4: a new nonlinear optical material,” J. Appl. Phys. 47, 4980–4985 (1975).

Appl. Opt. (2)

Appl. Phys. Lett. (2)

W. P. Risk, R. N. Payne, W. Lenth, “Noncritically phase-matched frequency doubling using 994 nm dye and diode laser radiation in KTiOPO4,” Appl. Phys. Lett. 55, 1179–1181 (1989).
[CrossRef]

C. L. Cheng, L. K. Cheng, R. L. Harlow, J. D. Dieslein, “Blue light generation using bulk single crystals of niobium-doped KTiOPO4,” Appl. Phys. Lett. 64, 155–157 (1994).
[CrossRef]

IEEE J. Quantum Electron. (1)

H. Y. Shen, Y. P. Zhou, W. X. Lin, Z. D. Zeng, R. R. Zeng, G. F. Yu, C. H. Huang, A. D. Jiang, S. Q. Jia, D. Z. Shen, “Second harmonic generation and sum frequency mixing of dual wavelength Nd:YAlO3 laser in flux growth KTiOPO4 crystal,” IEEE J. Quantum Electron. 28, 48–51 (1992).
[CrossRef]

J. Appl. Phys. (2)

J. Q. Yao, T. S. Fahlen, “Calculation of optimum phase match parameters for the biaxial crystal KTiOPO4,” J. Appl. Phys. 65, 65–68 (1984).
[CrossRef]

F. C. Zusmteg, J. D. Bieslein, T. Gier, “KxRb1-xTiOPO4: a new nonlinear optical material,” J. Appl. Phys. 47, 4980–4985 (1975).

Opt. Laser Technol. (1)

H. Liao, H. Y. Shen, Z. D. Zeng, T. Q. Zhou, C. H. Huang, R. R. Zeng, G. F. Yu, “Accurate values of the index of refraction and optimum phase match parameters in a flux grown KTiOPO4 crystal,” Opt. Laser Technol. 20, 103–104 (1988).
[CrossRef]

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Figures (1)

Fig. 1
Fig. 1

Littrow prisms 1 and 2 that were used to measure the principal refractive indices and their thermal coefficients.

Tables (4)

Tables Icon

Table 1 Principal Refractive Indices of 7.5-mol.% Nb:KTP Crystal at Room Temperature

Tables Icon

Table 2 Comparison of Refractive Indices and Birefringences for KTP and 7.5-mol.% Nb:KTP Crystals

Tables Icon

Table 3 Refractive Indices at Different Temperatures and Their Thermal Coefficients at Different Wavelengths

Tables Icon

Table 4 Optimal Phase-Matched Angles of 7.5-mol.% Nb:KTP Crystal for 1.0642 and 1.0795 µm

Equations (6)

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

n=sin χ/sin ξ,
Nx2Nb=3.0060+0.038424λ2-0.056149-0.014512λ2,  Ny2Nb=3.0351+0.041414λ2-0.061208-0.015125λ2,  Nz2Nb=3.3575+0.061421λ2-0.061847-0.020850λ2.
dNxNb/dT=1.45×10-5°C,  dNyNb/dT=2.57×10-5°C,  dNzNb/dT=4.86×10-5°C.
dNxNb/dT=1.35×10-5°C,  dNyNb/dT=2.22×10-5°C,  dNzNb/dT=4.03×10-5°C.
dNxNb/dT=1.01×10-5°C,  dNyNb/dT=1.75×10-5°C,  dNzNb/dT=3.09×10-5°C.
dNxNb/dT=1.04×10-5°C,  dNyNb/dT=1.75×10-5°C,  dNzNb/dT=3.43×10-5°C.

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