VARIABLE PHASE SHIFTERS

Improved switchable achromatic phase shifters

[+] Author Affiliations
Parameswaran Hariharan, Philip E. Ciddor

CSIRO, P.O. Box 218, Lindfield, New South Wales?2070, Australia

Opt. Eng. 38(6), 1078-1080 (Jun 01, 1999). doi:10.1117/1.602153
History: Received July 29, 1998; Accepted Dec. 9, 1998
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Abstract

We present optimized designs for two switchable achromatic phase shifters using a pair of ferroelectric liquid-crystal devices with retardations of a half-wave mounted between two quarter-wave retarders. The first system can be used with a linearly polarized beam to introduce phase shifts of 0°,90°, and 270°, that are almost independent of the wavelength, over a wide range of wavelengths. The other system can be used to introduce phase shifts of 0° and ±120° between two orthogonally polarized beams. © 1999 Society of Photo-Optical Instrumentation Engineers.

© 1999 Society of Photo-Optical Instrumentation Engineers

Citation

Parameswaran Hariharan and Philip E. Ciddor
"Improved switchable achromatic phase shifters", Opt. Eng. 38(6), 1078-1080 (Jun 01, 1999). ; http://dx.doi.org/10.1117/1.602153


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