Patent ID: 9625647
Date: 2017-04-18
CPC Classifications: G02B,H01L,H01S

Claim:
1. A semiconductor device comprising: a waveguide, comprising an active region, a coupling region, a tuning region, and first and second isolating passive waveguide regions, the waveguide divided into first through fourth sections, wherein: at least one first ion implant region formed in a first region of the first ohmic contact layer; at least one second ion implant region formed on the at least one first ion implant region, and that is in electrical contact with the p-type modulation doped QW structure, wherein the at least one second ion implant region is a p-type ion implant region; an anode terminal electrode disposed on the at least one second ion implant region; a cathode terminal electrode disposed on a first mesa of the first ohmic contact layer; wherein the active region further includes the at least one first ion implant region, the anode terminal electrode, the at least one second ion implant region, and the cathode terminal electrode; at least one third ion implant region formed in a second region of the first ohmic contact layer; at least one fourth ion implant region formed on the at least one third ion implant region, and that is in electrical contact with the p-type modulation doped QW structure, wherein the at least one fourth ion implant region is a p-type ion implant region; a first tuning electrode disposed on the at least one fourth ion implant region; and a second tuning electrode disposed on a second mesa of the first ohmic contact layer, wherein the tuning region further includes the at least one third ion implant region, the first tuning electrode, the at least one fourth ion implant region, and the second tuning electrode.