Tel Aviv University

Ben-Zion Steinberg

Amir Boag

Jacob Scheuer

Slava Krylov

Oren Levy

Ilan Goldfarb

A rotating optical resonator, a waveguide and a method of use of waveguide are disclosed. The rotating optical resonator may include at least two modes of different resonant frequencies shiftable towards each other by reducing a magnitude of rotation rate, said modes being joinable into a substantially degenerate mode by setting substantially zero rotation rate, said resonator being of an optical size smaller than five wavelengths of the substantially degenerate mode. The waveguide may include a plurality of coupled evenly degenerate split mode resonators, the split of the modes forming a stop band in a resonant band of the waveguide, the stop band of the waveguide thereby being changeable by changing an angular velocity of the waveguide while the vector of the angular velocity is non-parallel with respect to the waveguide.

Photonic crystal resonator, a coupled cavity waveguide, and a gyroscope

An optical device is presented for use in modulation of light and/or in sensing an external field, by at least partially, directly or indirectly exposing the device to the controllable or unknown external field. The device comprises a waveguide structure configured to define at least a first light channel having a light input and a light output, and having a first deformable resonating structure. The device thereby allows exposure of said at least first channel to the external field of the kind affecting a deformation of the first resonant structure thus causing a change in the first resonant wavelength, resulting in a corresponding change in at least one parameter of light output from said first channel, said change in the output light parameter being indicative of the external field.

Optical sensor and modulator

A method and device are presented for use in determining a rate of rotation of an object. The device comprises a light guide comprising an arrangement of a plurality of coupled optical resonators arranged along a curvilinear optical path. This allows for determining a change in at least one of the light phase and frequency affected by the light propagation through the curvilinear path during the device rotation, said change being indicative of the rotation rate of the light guide.

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Kfar Saba, Israel

Ben-Zion Steinberg