Patent ID: 7501294

Claim:
A method of manufacturing a coherent light generator for a low power high speed optical link comprising: (a) providing a gallium based semiconductor alloy substrate; (b) providing a first DBR stack over the substrate; (c) providing a first n-type clad layer of AlGaAs over the first DBR stack; (d) providing an active region comprised of InGaAs having a plurality of quantum wells over the first n-type clad layer; (e) providing a tunnel junction having an n-type and a p-type material and a boundary over the active region so that there is a standing wave null at an operating wavelength at the n-type/p-type boundary in the tunnel junction; (f) providing a second n-type clad layer of AlGaAs over the tunnel junction; (g) providing an oxide aperture at least partially installed in the second n-type clad layer; (h) providing a second DBR stack over the second n-type clad of the coherent light generator, wherein the first and second DBR stack are formed of alternating layers of n-type GaAs and n-type AlGaAs.