We measured small optical beam deflection in an image rotating Sagnac interferometer. We used a weak value measurement scheme that involves a pre-selection, weak perturbation, and a post-selection procedure to obtain the amplified value of beam deflection. The amplification factor of the measured beam deflection varied from 11 to 63 depending on the settings of the post-selection polarizer in front of the photodetector and the settings of polarization compensator in the interferometer.
© 2012 Optical Society of Korea
(120.0120) Instrumentation, measurement, and metrology : Instrumentation, measurement, and metrology
(120.3180) Instrumentation, measurement, and metrology : Interferometry
(270.1670) Quantum optics : Coherent optical effects
Original Manuscript: April 25, 2012
Revised Manuscript: July 13, 2012
Manuscript Accepted: July 20, 2012
Published: September 25, 2012
Sang-Joon Park, Hyoung-Joo Kim, and Jae-Woo Noh, "Weak Value Measurement of an Optical Beam Deflection in Image Rotating Sagnac Interferometer," J. Opt. Soc. Korea 16, 277-281 (2012)
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