Nanomotion Ltd.

Fiberzone Networks Ltd.

Ze′ev Ganor

Nir Karasikov

Izhak Rafaeli

Lior Shiv

Hanna Dodiuk-Kenig

Joseph Arol

Rahav Cohen

Menachem Eizenshtat

Zohar Avrahami

An optical crossbar switch for optically coupling optic fibers comprising: at least one first fiber () and a plurality of second fibers (); a moveable fiber-end carriage () coupled to an end of the at least one first fiber and constrained to move along a predetermined trajectory; at least one moveable slack-control carriage () coupled to the body of the at least one first fiber and constrained to move along a predetermined trajectory; and at least one moving device () controllable to move the carriages; wherein to optically couple a first fiber of the at least one first fiber to a second fiber of the plurality of second fibers, the at least one moving device moves the fiber-end carriage of the first fiber along its trajectory to a position at which the end of the first fiber is optically coupled to an end of the second fiber and moves the at least one slack-control carriage to take up slack in the first fiber generated by movement of its fiber-end carriage.

Optical crossbar switch

A piezoelectric vibrator comprising: a thin rectangular piezoelectric plate formed of a material having a Young's modulus having two short edge surfaces and two long edge surfaces and two large planar face surfaces which plate has transverse resonant vibration modes parallel to its short edges and longitudinal resonant vibration modes parallel to its long edges and is formed with at least one cavity; and at least one electrode on each of the planar surfaces that is electrifiable to excite at least one vibration mode of the plate, wherein the at least one cavity is not filled with a material having a Young's modulus substantially equal to the Young's modulus of the material from which the plate is formed, such that the presence of the at least one cavity shifts a resonant frequency of at least one vibration mode of the plate with respect to the resonant frequency that characterizes the at least one vibration mode in the absence of the at least one cavity.

Resonance shifting

Growing community of inventors

Herzelia, Israel

Ze′ev Ganor