| 摘要 |
A photonic device includes a plurality of semi-conductor layers formed on a substrate. The semi-conductor layers include an active layer and a current controlling region in close proximity to the active layer. The current controlling region includes a relatively small electrically conductive section or aperture, and a relatively large non-conductive section. A plurality of channels in the device are arranged to bound the electrically conductive section within their perimeter. The channels are spaced close enough together, and close enough to the desired aperture region to permit a relatively brief oxidation process to precisely isolate the aperture. The remainder of the current controlling region, i.e. beyond the aperture is also altered to present a high resistance. The photonic device also includes a relatively large surface area electrical contact used to drive the device. The large size desirably lowers overall resistance.
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