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Applied Optics

Applied Optics


  • Vol. 40, Iss. 34 — Dec. 1, 2001
  • pp: 6334–6336

Kilohertz scanning optical delay line employing a prism array

Ming Lai  »View Author Affiliations

Applied Optics, Vol. 40, Issue 34, pp. 6334-6336 (2001)

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A kilohertz scanning optical delay line is demonstrated by means of employing a prism array formed by identical wedge prisms. The wedge prisms are lined up with one another and uniformly disposed on a rotational wheel. The optical path length of a light beam can thus be scanned as the prisms pass through the beam periodically. Scanning rate of 2 kHz, scanning amplitude of 3.5 mm, linearity of 99%, and duty cycle of 95% can be achieved simultaneously. Simplicity and rigidity are embedded in the design. Preliminary test results are presented.

© 2001 Optical Society of America

OCIS Codes
(120.4570) Instrumentation, measurement, and metrology : Optical design of instruments
(120.5800) Instrumentation, measurement, and metrology : Scanners
(170.4500) Medical optics and biotechnology : Optical coherence tomography
(230.4110) Optical devices : Modulators

Original Manuscript: May 21, 2001
Revised Manuscript: September 7, 2001
Published: December 1, 2001

Ming Lai, "Kilohertz scanning optical delay line employing a prism array," Appl. Opt. 40, 6334-6336 (2001)

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