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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 14, Iss. 12 — Jun. 12, 2006
  • pp: 5210–5215

An active interferometer-stabilization scheme with linear phase control

Vishnu Vardhan Krishnamachari, Esben Ravn Andresen, Søren Rud Keiding, and Eric Olaf Potma  »View Author Affiliations

Optics Express, Vol. 14, Issue 12, pp. 5210-5215 (2006)

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We report a simple and robust computer-based active interferometer stabilization scheme which does not require modulation of the interfering beams and relies on an error signal which is linearly related to the optical path difference. In this setup, a non-collinearly propagating reference laser beam stabilizes the interference output of the laser light propagating collinearly through the interferometer. This stabilization scheme enables adjustable phase control with 20 ms switching times in the range from 0.02π radians to 6π radians at 632.8 nm.

© 2006 Optical Society of America

OCIS Codes
(120.3180) Instrumentation, measurement, and metrology : Interferometry
(120.5050) Instrumentation, measurement, and metrology : Phase measurement
(260.3160) Physical optics : Interference

ToC Category:
Instrumentation, Measurement, and Metrology

Original Manuscript: April 20, 2006
Revised Manuscript: May 25, 2006
Manuscript Accepted: May 26, 2006
Published: June 12, 2006

Vishnu Vardhan Krishnamachari, Esben Ravn Andresen, Søren Rud Keiding, and Eric Olaf Potma, "An active interferometer-stabilization scheme with linear phase control," Opt. Express 14, 5210-5215 (2006)

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