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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 38, Iss. 36 — Dec. 20, 1999
  • pp: 7386–7392

Femtosecond-pulse cavity-dumped solid-state oscillator design and application to ultrafast microscopy

Yish-Hann Liau, Andreas N. Unterreiner, David C. Arnett, and Norbert F. Scherer  »View Author Affiliations


Applied Optics, Vol. 38, Issue 36, pp. 7386-7392 (1999)
http://dx.doi.org/10.1364/AO.38.007386


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Abstract

The construction, modeling, and performance characteristics of a new resonator design for ultrafast cavity-dumped oscillators are presented. An acousto-optic Bragg cell was incorporated at the end of the longer arm of a Ti:sapphire oscillator rather than in the shorter arm as in several recent studies. The new arrangement improves the pulse intensity stability of the oscillator and significantly reduces the effort required in construction. The experimental findings are supported by comparison of the stability regions of the laser cavities based on the two different designs. To demonstrate the potential of cavity-dumped oscillators for spatially resolved ultrafast spectroscopy studies, the pulse duration is characterized at the focal plane of two achromatic high-N.A. oil-immersion objectives with different amounts of flat-field correction. Transform-limited pulse widths as short as 15 fs are obtained. To our knowledge, this is the shortest pulse duration measured with true high-N.A. (N.A. > 1) focusing conditions.

© 1999 Optical Society of America

OCIS Codes
(110.0180) Imaging systems : Microscopy
(140.3410) Lasers and laser optics : Laser resonators
(140.4050) Lasers and laser optics : Mode-locked lasers
(140.7090) Lasers and laser optics : Ultrafast lasers
(300.6530) Spectroscopy : Spectroscopy, ultrafast

History
Original Manuscript: July 16, 1999
Revised Manuscript: September 3, 1999
Published: December 20, 1999

Citation
Yish-Hann Liau, Andreas N. Unterreiner, David C. Arnett, and Norbert F. Scherer, "Femtosecond-pulse cavity-dumped solid-state oscillator design and application to ultrafast microscopy," Appl. Opt. 38, 7386-7392 (1999)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-38-36-7386

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