Optically controlled low-power on-off mode resonant tunneling oscillator with a heterojunction phototransistor switch

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We report an optically controlled low-power on-off mode oscillator based on a resonant tunneling diode (RTD) that is monolithically integrated with a heterojunction phototransistor (HPT) optical switch. In order to achieve a low-power operation at a wavelength of 1.55 mu m an InP-based quantum-effect tunneling diode is used for microwave signal generation based on a unique negative differential conductance (NDC) characteristic of the RTD at a low applied voltage. In addition, the high-gain HPT is used for converting incident optical data to an electrical data signal. The fabricated on-off mode oscillator shows a low-power consumption of 5 mW and a high-data-rate of 1 Gb/s at an oscillation frequency of 4.7 GHz. A good energy efficiency of 5 pJ/bit has been obtained due to the low DC power consumption along with high-data-rate performance of the RTD-based optoelectronic integration scheme.
Publisher
OPTICAL SOC AMER
Issue Date
2015-03
Language
English
Article Type
Article
Keywords

PHOTONIC OSCILLATOR; PHOTODIODE; CIRCUIT; DIODES

Citation

OPTICS LETTERS, v.40, no.6, pp.1022 - 1025

ISSN
0146-9592
DOI
10.1364/OL.40.001022
URI
http://hdl.handle.net/10203/198238
Appears in Collection
EE-Journal Papers(저널논문)
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