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Optical Engineering • Open Access

Magnetically actuated optical phase modulator
Author(s): Alan R. Kost; Lili Xiao; Kameron W. Rausch

Paper Abstract

A magnetically actuated optical phase modulator is described. The phase of a reflected optical beam is modulated by deflecting a Mylar® membrane, coated with a magnetic iron/nickel film, with the field of an electromagnet. A phase change of π for light of wavelength 0.633 µm was achieved with a driving voltage of only 4 V, much smaller than the voltage required for comparable, electrostatically-actuated devices. The modulator can be scaled to micron dimensions for fabrication in arrays, scaled for even lower drive voltage, and operated at megahertz frequencies.

Paper Details

Date Published: 1 August 2005
PDF: 3 pages
Opt. Eng. 44(8) 080502 doi: 10.1117/1.2001027
Published in: Optical Engineering Volume 44, Issue 8
Show Author Affiliations
Alan R. Kost, College of Optical Sciences/The Univ. of Arizona (United States)
Lili Xiao, The Univ. of Arizona (United States)
Kameron W. Rausch, College of Optical Sciences/The Univ. of Arizona (United States)

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