Optical phase modulator

Details Optical phase modulator Optical phase modulator

2005-09-20

2005-09-20

Thompson, Timothy (Department: 2873)

Optical: systems and elements

Optical modulator

Light wave temporal modulation

C359S245000, C359S238000, C359S239000

Reexamination Certificate

active

06947193

ABSTRACT:
To provide a phase modulator for introducing a topological phase, which is designed to produce any desired phase shift between zero and 360°, the phase modulator has means, at least one double-refractive, electrooptical delay element having a rotatable indicatrix, which is/are used to direct the polarization of the light, during transmission through the modulator, over at the light one closed path on the Poincaré sphere, the indicatrix rotating in accordance with the predefined phase shift, and the total encircled surface on Poincaré sphere being equal in terms of absolute value to φ.

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patent: 19852890 (2000-05-01), None
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Schmitzer, H., et al., “An Experimental Test Of The Path Dependency Of Pancharatnam's Geometric Phase,” Journal of Modern Optics, May 1998, Taylor & Francis, UK, vol. 45, No. 5, pp. 1039-1047.
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