Optically controlled surface-emitting lasers
Chan, W. K. ; Harbison, J. P. ; von Lehmen, A. C. ; Florez, L. T. ; Nguyen, C. K. ; Schwarz, S. A.
Woodbury, NY : American Institute of Physics (AIP)
Published 1991
Woodbury, NY : American Institute of Physics (AIP)
Published 1991
| ISSN: |
1077-3118
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| Source: |
AIP Digital Archive
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| Topics: |
Physics
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| Notes: |
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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| Type of Medium: |
Electronic Resource
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| URL: |