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Optically controlled surface-emitting lasers
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DOI：10.1063/1.104919.png)
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Abstract
En 中文
Vertical cavity surface-emitting lasers are integrated with GaAs/AlGaAs heterojunction phototransistors to yield optically controlled lasers. The two-terminal device operates in several modes: As an amplifier with a large signal, external optical gain of 5, as in optical logic gate, and as an optically or electrically triggerable latch. The optical AND gate has an output on-to-off ratio of 10:1. Although the device has no optical feedback, latching is achieved with appropriate biasing through impact ionization. The device structure is advantageous for forming large two-dimensional arrays for optical signal processing.
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