Patent ID: 9395563
Filing Date: 2016-07-19
CPC Classification: G02F

Claim Text:
1. An electro-optic modulator comprising: a semiconductor substrate; a core region on the semiconductor substrate, the core region including a first low concentration doping region, a second low concentration doping region and a high concentration doping region between the first low concentration doping region and the second low concentration doping region, the core region configured to form a depletion region between the first low concentration doping region and the second low concentration doping region when an operating voltage is applied therebetween, a width of the depletion region being controlled based on the operating voltage such that the width of the depletion region is narrower than a width of the high concentration doping region, if the operating voltage is a zero voltage; and slab regions on the semiconductor substrate, the slab regions being in contact with the core region.