Optics: measuring and testing – Range or remote distance finding – With photodetection
Patent
1989-02-23
1989-12-19
Sikes, William L.
Optics: measuring and testing
Range or remote distance finding
With photodetection
350 9613, 350 9614, 350 9630, 350 9632, 350 9634, 350355, 350356, 350374, 356345, 307424, 307425, 307430, 252585, G02B 602, G01B 902, H03F 704, F21V 914
Patent
active
048878847
ABSTRACT:
An optical waveguide for transmitting light energy is defined by a glass capillary with a core of noncentrosymmetric non-linear optical polymer which has been poled to induce a stable axial alignment of molecules therein. Changes in refractive index of the polymer are induced by an applied electric field. In a preferred embodiment, the waveguide is used as an electric field sensor and may form an arm of a Mach-Zender interferometer. The device is adapted to modulate waveguided electromagnetic energy by a change in refractive index proportional to the applied electric field. In a further embodiment, the birefringent properties of the polymer are used to cause polarized light energy transmitted by the waveguide to undergo a change in polarization, which, when intercepted by a polarization sensitive analyzer, provides an amplitude modulation of the transmitted light energy.
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Albin Arnold L.
Bowen Glenn W.
Cooper Albert B.
Healy Brian M.
Sikes William L.
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