Patent ID: 6181843
Filing Date: 2001-01-30
Classification: H01S

Abstract:
A surface transmission-type optical switch of a one-dimensional array, comprising:an indium substrate to which incoming beams are transmitted; and a Fabry-perot type optical amplifier which is made of a lower superlattice Distributed Bragg Reflector (DBR) whose reflectance is 1, an active layer of resonance layer thickness which can generate only one resonance mode corresponding to an incoming wavelength, and a top superlattice DBR which has a rectangular or oval mesa surface of different shape and size compared with a circular incoming beam, wherein:signals reflect from the surface and are amplified and output if optical signals come in from a lower part of said indium substrate; andthe switch acts as both an optical amplifier and an optical filter by independent switching of multiple matrixes of a space division multiplex, by overlapping said optical amplifiers of uniform shape serially, using said surface-type optical amplification, which can control filter wavelengths.