Abstract

We discuss the modulation in the spectrum generated by the windows of a Pockels cell. Although they are antireflection coated, the residual reflectivity of the highly parallel window faces can still have etalon effects that lead to pronounced spectrum modulation. This problem is easily solved by the use of slightly wedged windows.

© 2000 Optical Society of America

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References

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  1. C. Tian, T. Walther, R. Nicolaescu, X. J. Pan, Y. Liao, E. S. Fry, “Synchronous, dual-wavelength, injection-seeded amplification of 5-ns pulses in a flash-lamp–pumped Ti:sapphire laser,” Opt. Lett. 24, 1496–1498 (1999).
    [CrossRef]
  2. W. Demtröder, Laser Spectroscopy: Basic Concepts and Instrumentation, 2nd ed. (Springer-Verlag, Berlin, 1996), pp. 133–152.

1999 (1)

Demtröder, W.

W. Demtröder, Laser Spectroscopy: Basic Concepts and Instrumentation, 2nd ed. (Springer-Verlag, Berlin, 1996), pp. 133–152.

Fry, E. S.

Liao, Y.

Nicolaescu, R.

Pan, X. J.

Tian, C.

Walther, T.

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Figures (3)

Fig. 1
Fig. 1

Ti:sapphire laser output spectrum: solid curve, with Pockels cell; dotted curve, without Pockels cell in the laser cavity.

Fig. 2
Fig. 2

Image of the reflection of a He–Ne laser from the Pockels cell: (a) with parallel windows, (b) with wedged windows.

Fig. 3
Fig. 3

(a) Transmission of the quartz protection windows after 30 round trips. (b) Product of this transmission and the laser output spectrum obtained without a Pockels cell (dotted curve in Fig. 1).

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