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Optics Letters

Optics Letters


  • Vol. 20, Iss. 10 — May. 15, 1995
  • pp: 1095–1097

How accurate is optical second-harmonic generation?

R. Wynands, O. Coste, C. Rembe, and D. Meschede  »View Author Affiliations

Optics Letters, Vol. 20, Issue 10, pp. 1095-1097 (1995)

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We have checked whether the frequency ratio between fundamental and second-harmonic optical frequencies is exactly 1:2 by measuring the frequency difference between the second harmonics of two diode lasers and comparing it with the frequency difference of the fundamentals. We have improved the 30-year-old experimental limit on the accuracy of the 1:2 frequency ratio by 7 orders of magnitude for frequency-dependent shifts to 2.3 parts in 1013 for a KNbO3 crystal.

© 1995 Optical Society of America

Original Manuscript: November 28, 1994
Published: May 15, 1995

R. Wynands, O. Coste, C. Rembe, and D. Meschede, "How accurate is optical second-harmonic generation?," Opt. Lett. 20, 1095-1097 (1995)

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