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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 16, Iss. 10 — May. 12, 2008
  • pp: 7071–7082

Ultrafast double-pulse parametric amplification for precision Ramsey metrology

D. Z. Kandula, A. Renault, Ch. Gohle, A. L. Wolf, S. Witte, W. Hogervorst, W. Ubachs, and K. S. E. Eikema  »View Author Affiliations

Optics Express, Vol. 16, Issue 10, pp. 7071-7082 (2008)

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We demonstrate phase stable, mJ-level parametric amplification of pulse pairs originating from a Ti:Sapphire frequency comb laser. The amplifier-induced phase shift between the pulses has been determined interferometrically with an accuracy of ≈10 mrad. Typical phase shifts are on the order of 50–200 mrad, depending on the operating conditions. The measured phase-relation can be as stable as 20 mrad rms (1/300 th of an optical cycle). This makes the system suitable for Ramsey spectroscopy at short wavelengths by employing harmonic upconversion of the double-pulses in nonlinear media.

© 2008 Optical Society of America

OCIS Codes
(190.4970) Nonlinear optics : Parametric oscillators and amplifiers
(320.7090) Ultrafast optics : Ultrafast lasers
(320.7160) Ultrafast optics : Ultrafast technology
(350.5030) Other areas of optics : Phase

ToC Category:
Nonlinear Optics

Original Manuscript: March 14, 2008
Revised Manuscript: April 21, 2008
Manuscript Accepted: April 21, 2008
Published: May 1, 2008

D. Z. Kandula, A. Renault, Ch. Gohle, A. L. Wolf, S. Witte, W. Hogervorst, W. Ubachs, and K. S. E. Eikema, "Ultrafast double-pulse parametric amplification for precision Ramsey metrology," Opt. Express 16, 7071-7082 (2008)

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  19. Pearson�??s linear correlation coefficient is not appropriate, as it assumes a linear relationship between the variables, which is not the case here.
  20. The phase mismatch is very sensitive to the angles in the parametric amplification. It is extremely difficult to measure them accurate enough to be able to determine �??k

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