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Optics Letters

Optics Letters


  • Vol. 27, Iss. 8 — Apr. 15, 2002
  • pp: 607–609

Rotary mirror array for high-speed optical coherence tomography

Nan Guang Chen and Quing Zhu  »View Author Affiliations

Optics Letters, Vol. 27, Issue 8, pp. 607-609 (2002)

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We have developed a simple, high-speed, high-duty-cycle, linear optical delay line suitable for optical coherence tomography and optical Doppler tomography. Periodic longitudinal scanning is achieved by use of a tilted mirror array rotating at a constant speed. With a typical motor speed of 4000 rpm, our system has demonstrated a 2-mm axial scanning range, a 2400-Hz repetition rate, 94% duty cycle, and less than 0.1% nonlinear errors. Much higher repetition rates can be readily achieved by use of high-speed motors.

© 2002 Optical Society of America

OCIS Codes
(110.4500) Imaging systems : Optical coherence tomography
(120.5800) Instrumentation, measurement, and metrology : Scanners
(170.3880) Medical optics and biotechnology : Medical and biological imaging
(220.4830) Optical design and fabrication : Systems design

Nan Guang Chen and Quing Zhu, "Rotary mirror array for high-speed optical coherence tomography," Opt. Lett. 27, 607-609 (2002)

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