Abstract: The invention relates to an electro-optic modulator structure containing an additional set of bias electrodes buried within the device for applying bias to set the operating point. Thus the RF electrodes used to modulate incoming optical signals can be operated with zero DC bias, reducing electrode corrosion by electro-migration, galvanic, and other effects that can be present in non-hermetic packages. The RF electrodes are supported by a first surface of the electro-optic substrate, while the bias electrodes are supported by a second opposite surface.

Abstract: A flex cable has a number of conductive wirings for electrically coupling electrical leads of an electrical component to a wiring board. The flex cable has a conductive tab for electrically coupling one of the conductive wirings to one of the leads. The flex cable is bendable to form an essentially horizontal portion and an essentially vertical portion. The conductive tab is disposed at a transition between the horizontal portion and the vertical portion.