Abstract

We present highly efficient sum-frequency generation between two CW IR lasers using periodically poled KTP. The system is based on the 1064 and 1342 nm laser-lines of two Nd:YVO4 lasers. This is an all solid-state light source in the yellow-orange spectral range. The system is optimized in terms of efficiency as well as stability. We compare the performance of a singly and a doubly resonant system, and find that the stability of the singly resonant system is superior to that of the doubly resonant system. We find that the overall conversion efficiency of the single resonant system is higher than for the doubly resonant configuration.

© 2005 Optical Society of America

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References

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Appl. Opt. (2)

Appl. Phys. B. (1)

Y. F. Chen and S. W. Tsai, “Diode-pumped Q-switched laser with intracavity sum frequency mixing in periodically poled KTP,” Appl. Phys. B. 79, 207-210 (2004).
[CrossRef]

Appl. Phys. Lett. (1)

K. Fradkin, A. Arie, A. Skliar and G. Rosenman, “Midinfrared source by difference frequency generation in bulk periodically poled KTiOPO4,” Appl. Phys. Lett. 74, 914-917 (1999).
[CrossRef]

ASSP (1)

J. Janousek, S. Johansson, P. Tidemand-Lichtenberg, J. L. Mortensen, P. Buchhave and F. Laurell, “Efficient generation of continuous-wave yellow-orange light using sum-frequency generation in periodically poled KTP,” Poster presentation MF26 at the ASSP 2005, Vienna, Austria, 6 – 9 February 2005.

Electron. Lett. (1)

S. Spiekermann, H. Karlsson, F. Laurell and I Fritag, “Tunable single-frequency radiation in the orange spectral region,” Electron. Lett. 36, 543-545 (2000).
[CrossRef]

EUROPhotonics (1)

R. Häring and E. Gerster, “Semiconductor Laser Systems Fills Yellow-Orange Gap,” EUROPhotonics, 38-39, August/September 2003.

Opt. Lett. (6)

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Figures (4)

Fig. 1.
Fig. 1.

Setup for efficient yellow-orange light generation using two Nd:YVO4 lasers oscillating at 1064 and 1342 nm respectively and sum-frequency mixing in PP:KTP intra-cavity in the 1342 nm laser cavity

Fig. 2.
Fig. 2.

Measurement of the generated 593.5 nm power (diamonds) as well as the circulating 1342 nm power (circles) and the incident (triangles) and transmitted (squares) 1064 nm power as a function of the diode pump power for the 1064 nm laser (left) and as a function of the diode pump power for 1342 nm laser (right).

Fig. 3.
Fig. 3.

Measured sum-frequency generated power as a function of the PP:KTP temperature.

Fig. 4.
Fig. 4.

Measured sum-frequency generated power. Circles correspond to double-pass and diamonds to single-pass configuration. Circles show the power measured in the forward direction. Approximately the same amount of power was seen in the backward direction.

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