Patent ID: 7102807
Filing Date: 2006-09-05
Classification: B82Y,G02F

Abstract:
1. A high-speed electro-absorption modulator (EAM) with low drive voltage, comprising: a semiconductor substrate; a p-i-n-i-n epitaxy layer including a second intrinsic layer (i-layer) formed on a second n-doped layer (n-layer), a first n-layer formed on said second i-layer, a first i-layer formed on said first n-layer, and a p-doped layer (p-layer) formed on said first i-layer, wherein said p-i-n-i-n epitaxy layer is formed on said semiconductor substrate, wherein said p-i-n-i-n epitaxy layer is made of a semiconductor of a material and a semiconductor of an alloy of said material, and wherein said material is selected from a group consisting of a compound and a column element, wherein said alloy is selected from a group consisting of AlGaN, InGaN, InGaAs, and InAlGaAs.