Abstract: The present invention provides a method of fabricating an electro-optically active fiber segment comprising the steps, in any order, of inducing a second-order nonlinearity in the fiber segment, and placing a portion of the fiber segment between and in contact with two electrodes. Also, the present invention provides an electro-optically active fiber segment comprising a second-order nonlinearity induced within the fiber segment, and a portion of the fiber segment being between and in contact with a first electrode and a second electrode.

Abstract: A low-cost fabrication technique, readily extensible to volume manufacturing is presented for an electro-optically active fiber segment (31) that can be simply integrated into optoelectronic devices. The fabrication technique offers a dielectric isolation structure (16, 17) surrounding the fiber (10) to allow high field poling, a pair of electrodes (37, 38) used both for poling and for inducing an electro-optic effect, and ends of the fiber (18, 19) unaffected by the fabrication and available for splicing with additional fiber sections. The technique is readily adaptable to specialized electrode structures including striplines and/or microstrip lines for high frequency applications and segmented electrodes (52) for quasi-phasematched three-wave mixing applications. By combining the electro-optically active fiber segment (31) with other fibers in an integrated fiber modulator, high frequency modulation of an optical signal may be achieved with applications in telecommunications.

Abstract: A low-cost fabrication technique, readily extensible to volume manufacturing is presented for an electrooptically active fiber segment that can be simply integrated into optoelectronic devices. The fabrication technique offers a dielectric isolation structure surrounding the fiber to allow high field poling, a pair of electrodes used both for poling and for inducing an electrooptic effect, and ends of the fiber unaffected by the fabrication and available for splicing with additional fiber sections. The technique is readily adaptable to specialized electrode structures including striplines and/or microstrip lines for high frequency applications and segmented electrodes for quasi-phasematched three-wave mixing applications. By combining the electrooptically active fiber segment with other fibers in an integrated fiber modulator, high frequency modulation of an optical signal may be achieved with applications in telecommunications.