Patent ID: 8225241
Filing Date: 2012-07-17
Classification: B82Y,G02F,H01L,H04N

Abstract:
1. A method for designing an electro-optical modulator device to operate in a coupling mode or a detection mode in which light having a wavelength λ is incident upon a semiconductor structure comprised by the electro-optical modulator device at an incident angle (θ i ) with respect to a direction opposite to a Z direction, said method comprising: receiving input, by a processor of a computer system, for designing the electro-optical modulator device to operate in the coupling mode or the detection mode, wherein the semiconductor structure comprises a semiconductor layer having a thickness (r) in the Z direction and a plurality of grating structures on a top surface of the semiconductor layer, wherein the Z direction is perpendicular to the top surface of the semiconductor layer, wherein the semiconductor layer comprises a plurality of semiconductor channel regions, wherein the grating structures are distributed in a periodic pattern having a pitch (p said processor ascertaining P solution sets at which the electro-optical modulator device operates in an ON state in which V=V if P=1 such that the P solution sets consist of a single solution set, then said processor determining a design set for the ON state as being the single solution set; if P>1, then said processor computing a performance count with respect to the performance criteria for each solution set and determining the design set for the ON state as being a solution set of the P solution sets having the highest computed performance count; said processor transmitting the design set for the ON state to an output device.