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Proceedings Paper

Basic optical properties of the photoelastic modulator part I: useful aperture and acceptance angle
Author(s): Baoliang Wang; Jennifer List
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Paper Abstract

The photoelastic modulator (PEM) is a resonant polarization modulator. It operates at the resonant frequency of a desired mechanical vibration mode of its optical element. The PEM is made of isotropic optical materials, in contrast to the birefringent materials used in electro-optic modulators. These two characteristics, operation at resonance and the use of isotropic optical materials, give the PEM unique optical properties, such as high modulation purity and efficiency, broad spectral range, high power handling capability, large acceptance angle, large useful aperture and good retardation stability. These properties make the PEM an effective polarization modulator in a variety of high sensitivity applications. In this first paper in a series, we focus on studying two basic optical properties of the PEM: useful aperture and acceptance angle.

Paper Details

Date Published: 18 August 2005
PDF: 8 pages
Proc. SPIE 5888, Polarization Science and Remote Sensing II, 58881I (18 August 2005); doi: 10.1117/12.617904
Show Author Affiliations
Baoliang Wang, Hinds Instruments, Inc. (United States)
Jennifer List, Hinds Instruments, Inc. (United States)

Published in SPIE Proceedings Vol. 5888:
Polarization Science and Remote Sensing II
Joseph A. Shaw; J. Scott Tyo, Editor(s)

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