Demonstration of Modulation Format Free and Bit Rate Free Characteristics of 2 ns Optical Switch for Optical Routers

Energy Efficient Semiconductor Optical Switch

“…Compared to carrier-injection switches, electro-optic switches have faster switching speeds but larger switching voltages since the refractive index change induced by an electro-optic effect is about two orders of magnitude smaller than that by carrier injection. Therefore, until now, most of the commercially available semiconductor DOS products have been based on carrier-injection (Ikezawa et al, 2008). These devices typically utilize carrierinduced Total Internal Reflection (TIR) at a waveguide branching or crossing point to switch the light path from one waveguide to another.…”