Optical waveguides – Temporal optical modulation within an optical waveguide – Electro-optic
Reexamination Certificate
2006-03-14
2006-03-14
Song, Sarah (Department: 2874)
Optical waveguides
Temporal optical modulation within an optical waveguide
Electro-optic
C385S040000, C385S011000
Reexamination Certificate
active
07013053
ABSTRACT:
Electro-optical method and device for modulation of light are presented providing a substantially balanced voltage-phase response of the device in two orthogonal polarization directions substantially irrespective of applied voltages. The device comprises a crystal material of a predetermined orientation of the plane of propagation of light therethrough, formed with at least one waveguide channel directed in a predetermined direction, and at least two electrodes accommodated at opposite sides of the waveguide channel. The substantially balanced voltage-phase response is achieved by shifting the electrodes relative to the axis of the waveguide channel a predetermined distance in a certain direction. The device may be designed so as to operate as a phase modulator or an amplitude modulator.
REFERENCES:
patent: 4262994 (1981-04-01), Sheem
patent: 4291939 (1981-09-01), Giallorenzi et al.
patent: 4691984 (1987-09-01), Thaniyavarn
patent: 4818063 (1989-04-01), Takizawa
Kaplan Arkady
Ruschin Shlomo
Friedman Mark M.
Ramot At Tel Aviv University Ltd.
Song Sarah
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