Abstract

We demonstrate electro-optic spectral tuning in a continuous-wave periodically poled LiNbO3 (PPLN) optical parametric oscillator (OPO). We achieve 8.91 cm-1 of rapid spectral tuning, with a linear tuning rate of 2.89 cm-1/kV/mm, by applying electric fields up to ±1.5 kV/mm across the crystal while it is operating within the OPO. Intentionally poling the PPLN crystal with an asymmetric domain structure enables tuning, and numerical predictions closely match the experimental observations. The tuning is considerably larger than the typical operational bandwidth of the OPO, indicating that we are in fact shifting the gain curve of the PPLN crystal.

© 1999 Optical Society of America

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References

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1999

S. T. Yang and S. P. Velsko, Opt. Lett. 24, 133 (1999).
[CrossRef]

Y.-Q. Lu, J.-J. Zheng, Y.-L. Lu, N.-B. Ming, and Z.-Y. Xu, Appl. Phys. Lett. 74, 123 (1999).
[CrossRef]

1998

1997

1996

Alexander, J. I.

Bashaw, M. C.

Bisson, S. E.

Bosenberg, W. R.

Byer, R. L.

Debuisschert, T.

Drobshoff, A.

Eckardt, R. C.

Fejer, M. M.

Jundt, D. H.

Kramper, P.

Kulp, T. J.

Lu, Y.-L.

Y.-Q. Lu, J.-J. Zheng, Y.-L. Lu, N.-B. Ming, and Z.-Y. Xu, Appl. Phys. Lett. 74, 123 (1999).
[CrossRef]

Lu, Y.-Q.

Y.-Q. Lu, J.-J. Zheng, Y.-L. Lu, N.-B. Ming, and Z.-Y. Xu, Appl. Phys. Lett. 74, 123 (1999).
[CrossRef]

Ming, N.-B.

Y.-Q. Lu, J.-J. Zheng, Y.-L. Lu, N.-B. Ming, and Z.-Y. Xu, Appl. Phys. Lett. 74, 123 (1999).
[CrossRef]

Mlynek, J.

Myers, L. E.

Pocholle, J.-P.

Powers, P. E.

Raffy, J.

Schiller, S.

Schneider, K.

Taya, M.

Velsko, S. P.

Xu, Z.-Y.

Y.-Q. Lu, J.-J. Zheng, Y.-L. Lu, N.-B. Ming, and Z.-Y. Xu, Appl. Phys. Lett. 74, 123 (1999).
[CrossRef]

Yang, S. T.

Yariv, A.

A. Yariv and P. Yeh, Optical Waves in Crystals (Wiley, New York, 1984), p. 232.

Yeh, P.

A. Yariv and P. Yeh, Optical Waves in Crystals (Wiley, New York, 1984), p. 232.

Zheng, J.-J.

Y.-Q. Lu, J.-J. Zheng, Y.-L. Lu, N.-B. Ming, and Z.-Y. Xu, Appl. Phys. Lett. 74, 123 (1999).
[CrossRef]

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Figures (3)

Fig. 1
Fig. 1

Experimental setup and crystal coordinate axes: The pump passes through a Faraday isolator (FI), an RG850 glass filter, an attenuator [half-wave plate λ/2, polarization beam splitter], and a mode-matching lens before passing into the OPO. We monitor the output power (P) of the pump, the signal, and the idler beams, and we analyze the signal with a scanning Fabry–Perot (FP) etalon to measure wavelength shifts of the signal as we apply electric fields across the PPLN crystal.

Fig. 2
Fig. 2

Transmittance data from our scanning Fabry–Perot etalon measurement technique. The middle peak was obtained with no applied electric field. The outer peaks were obtained during a second scan while the applied electric field was abruptly switched from +1.5 to -1.5 kV/mm.

Fig. 3
Fig. 3

Average spectral tuning (filled circles) and ±1 standard deviation of the tuning (error bars) for 50 scans of the etalon for each of the switching electric-field differences. The dashed line is a linear curve fit, giving a tuning rate of 2.89 cm-1/kV/mm.

Equations (2)

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ΔkQPMΛ=kp+-ks+-ki+-kgL1+kp--ks--ki--kgL2=0,
kj±=2πλjnj12nj3r33E3,

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