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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 14, Iss. 25 — Dec. 11, 2006
  • pp: 12109–12121

Dispersion-free optical coherence depth sensing with a spatial frequency comb generated by an angular spectrum modulator

Zhihui Duan, Yoko Miyamoto, and Mitsuo Takeda  »View Author Affiliations

Optics Express, Vol. 14, Issue 25, pp. 12109-12121 (2006)

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As an alternative to the conventional optical frequency comb technique, a spatial frequency comb technique is proposed for dispersionfree optical coherence depth sensing. Instead of generating an optical frequency comb over a wide range of time spectrum, we generate a spatial frequency comb by modulating the incident angle of a monochromatic plane wave with a spatial light modulator (SLM). The use of monochromatic light combined with the SLM enables dispersion-free depth sensing that is free from mechanical moving components.

© 2006 Optical Society of America

OCIS Codes
(120.2650) Instrumentation, measurement, and metrology : Fringe analysis
(120.2830) Instrumentation, measurement, and metrology : Height measurements
(120.3180) Instrumentation, measurement, and metrology : Interferometry
(120.6650) Instrumentation, measurement, and metrology : Surface measurements, figure

ToC Category:
Instrumentation, Measurement, and Metrology

Original Manuscript: August 24, 2006
Revised Manuscript: September 22, 2006
Manuscript Accepted: September 22, 2006
Published: December 11, 2006

Zhihui Duan, Yoko Miyamoto, and Mitsuo Takeda, "Dispersion-free optical coherence depth sensing with a spatial frequency comb generated by an angular spectrum modulator," Opt. Express 14, 12109-12121 (2006)

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