Abstract

We report on the investigation of thermal effects in high-repetition-rate pulsed optical parametric oscillators emitting in the mid-IR. We find that the thermal load induced by the nonresonant idler absorption plays a critical role in the emergence of thermally induced bistability. We then demonstrate a significant improvement of the conversion efficiency (more than 30%) when a proper axial temperature gradient is applied to the nonlinear crystal by use of a two-zone temperature-controlled oven.

© 2010 Optical Society of America

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References

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2010

2009

M. Vainio, J. Peltola, S. Persijn, F. J. M. Harren, and L. Halonen, Appl. Phys. B 94, 411 (2009).
[CrossRef]

2008

2007

A. Godard, M. Lefebvre, S. A. Said Hassani, and P. Galtier, Proc. SPIE 6738, 67380C (2007).
[CrossRef]

2004

P. D. Mason and N. J. Wood, Proc. SPIE 5620, 308 (2004).
[CrossRef]

1995

1994

1993

Barnes, N. P.

Budni, P. A.

Catalla, G. C.

Chiang, A. C.

Chicklis, E. P.

Cooper, D. G.

DeDomenico, R.

Galtier, P.

A. Godard, M. Lefebvre, S. A. Said Hassani, and P. Galtier, Proc. SPIE 6738, 67380C (2007).
[CrossRef]

Godard, A.

A. Godard, M. Lefebvre, S. A. Said Hassani, and P. Galtier, Proc. SPIE 6738, 67380C (2007).
[CrossRef]

Halonen, L.

M. Vainio, J. Peltola, S. Persijn, F. J. M. Harren, and L. Halonen, Appl. Phys. B 94, 411 (2009).
[CrossRef]

Harren, F. J. M.

M. Vainio, J. Peltola, S. Persijn, F. J. M. Harren, and L. Halonen, Appl. Phys. B 94, 411 (2009).
[CrossRef]

Huang, Y. C.

Knights, M. G.

Lefebvre, M.

A. Godard, M. Lefebvre, S. A. Said Hassani, and P. Galtier, Proc. SPIE 6738, 67380C (2007).
[CrossRef]

Lin, S. T.

Lin, Y. Y.

Marquardt, C. L.

Mason, P. D.

P. D. Mason and N. J. Wood, Proc. SPIE 5620, 308 (2004).
[CrossRef]

Peltola, J.

M. Vainio, J. Peltola, S. Persijn, F. J. M. Harren, and L. Halonen, Appl. Phys. B 94, 411 (2009).
[CrossRef]

Persijn, S.

M. Vainio, J. Peltola, S. Persijn, F. J. M. Harren, and L. Halonen, Appl. Phys. B 94, 411 (2009).
[CrossRef]

Said Hassani, S. A.

A. Godard, M. Lefebvre, S. A. Said Hassani, and P. Galtier, Proc. SPIE 6738, 67380C (2007).
[CrossRef]

Schepler, K. L.

Shy, J. T.

Vainio, M.

M. Vainio, J. Peltola, S. Persijn, F. J. M. Harren, and L. Halonen, Appl. Phys. B 94, 411 (2009).
[CrossRef]

Wang, T. D.

Williams-Byrd, J. A.

Wood, N. J.

P. D. Mason and N. J. Wood, Proc. SPIE 5620, 308 (2004).
[CrossRef]

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Figures (5)

Fig. 1
Fig. 1

Idler power at 4 µm versus pump power for two OPO cavity alignments and a uniform temperature of the PPLN oven (insets, idler beam profile).

Fig. 2
Fig. 2

Idler power at several wavelengths versus pump power for a uniform temperature of the PPLN oven.

Fig. 3
Fig. 3

Idler power at 4 µm versus axial temperature gradient T 2 T 1 for an incident pump power of 9.5 W (top insets, idler beam profile; bottom inset, schematic diagram of the OPO cavity where the PPLN crystal (side view shown in this figure) is inserted in a two-zone temperature- controlled oven).

Fig. 4
Fig. 4

Idler power at 4.2 µm versus axial temperature gradient T 2 T 1 for an incident pump power of 9.5 W (insets, idler beam profile).

Fig. 5
Fig. 5

Idler power at 4.2 µm versus pump power for two temperature settings of the PPLN oven (uniform temperature and temperature gradient of + 5 ° C ).

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