High-speed (≥1 GHz) electrical and optical adding, mixing, and processing of square-wave signals with a transistor laser

Milton Feng; Nick Holonyak; Richard Chan; Adam James; Gabriel Walter

doi:10.1109/LPT.2006.875333

High-speed (≥1 GHz) electrical and optical adding, mixing, and processing of square-wave signals with a transistor laser

Milton Feng, Nick Holonyak, Richard Chan, Adam James, Gabriel Walter

Electrical and Computer Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

This letter reports the common-emitter operation (gain β = δ I_C/δI_B > 1, 20 °C, I_B = 36 mA λ = 970 nm) of a dual-input transistor laser, arranged with a separate base contact on either side of a single emitter, that adds, mixes, and processes high-speed square-wave electrical inputs and delivers separate electrical and optical outputs. Applying a square-wave electrical input X₁(t) to one base contact and X₂(t) at a second base input, we obtain, with the pulsewidth modulated because of mixing, an electrical output proportional to β × [X₁(t) + X₂(t)] and a laser output tracking the electrical output (hv × f[X₁(t) + X₂(t)]) and exceeding it in bandwidth (pulse sharpness).

Original language	English (US)
Pages (from-to)	1240-1242
Number of pages	3
Journal	IEEE Photonics Technology Letters
Volume	18
Issue number	11
DOIs	https://doi.org/10.1109/LPT.2006.875333
State	Published - Jun 1 2006

Keywords

Heterojunction bipolar transistors (HBTs)
Lasers
Microwave mixers
Optical mixers
Signal processing

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Electrical and Electronic Engineering

Online availability

10.1109/LPT.2006.875333

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title = "High-speed (≥1 GHz) electrical and optical adding, mixing, and processing of square-wave signals with a transistor laser",

abstract = "This letter reports the common-emitter operation (gain β = δ IC/δIB > 1, 20 °C, IB = 36 mA λ = 970 nm) of a dual-input transistor laser, arranged with a separate base contact on either side of a single emitter, that adds, mixes, and processes high-speed square-wave electrical inputs and delivers separate electrical and optical outputs. Applying a square-wave electrical input X1(t) to one base contact and X2(t) at a second base input, we obtain, with the pulsewidth modulated because of mixing, an electrical output proportional to β × [X1(t) + X2(t)] and a laser output tracking the electrical output (hv × f[X1(t) + X2(t)]) and exceeding it in bandwidth (pulse sharpness).",

keywords = "Heterojunction bipolar transistors (HBTs), Lasers, Microwave mixers, Optical mixers, Signal processing",

author = "Milton Feng and Nick Holonyak and Richard Chan and Adam James and Gabriel Walter",

note = "Funding Information: Manuscript received January 3, 2006; revised February 24, 2006. This work was support by the Defense Advanced Research Projects Agency (DARPA) under Contract HR0011-04-1-0034 (Hyper-Uniform Nano-photonics Technologies, HUNT Center).",

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doi = "10.1109/LPT.2006.875333",

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T1 - High-speed (≥1 GHz) electrical and optical adding, mixing, and processing of square-wave signals with a transistor laser

AU - Feng, Milton

AU - Holonyak, Nick

AU - Chan, Richard

AU - James, Adam

AU - Walter, Gabriel

N1 - Funding Information: Manuscript received January 3, 2006; revised February 24, 2006. This work was support by the Defense Advanced Research Projects Agency (DARPA) under Contract HR0011-04-1-0034 (Hyper-Uniform Nano-photonics Technologies, HUNT Center).

PY - 2006/6/1

Y1 - 2006/6/1

N2 - This letter reports the common-emitter operation (gain β = δ IC/δIB > 1, 20 °C, IB = 36 mA λ = 970 nm) of a dual-input transistor laser, arranged with a separate base contact on either side of a single emitter, that adds, mixes, and processes high-speed square-wave electrical inputs and delivers separate electrical and optical outputs. Applying a square-wave electrical input X1(t) to one base contact and X2(t) at a second base input, we obtain, with the pulsewidth modulated because of mixing, an electrical output proportional to β × [X1(t) + X2(t)] and a laser output tracking the electrical output (hv × f[X1(t) + X2(t)]) and exceeding it in bandwidth (pulse sharpness).

AB - This letter reports the common-emitter operation (gain β = δ IC/δIB > 1, 20 °C, IB = 36 mA λ = 970 nm) of a dual-input transistor laser, arranged with a separate base contact on either side of a single emitter, that adds, mixes, and processes high-speed square-wave electrical inputs and delivers separate electrical and optical outputs. Applying a square-wave electrical input X1(t) to one base contact and X2(t) at a second base input, we obtain, with the pulsewidth modulated because of mixing, an electrical output proportional to β × [X1(t) + X2(t)] and a laser output tracking the electrical output (hv × f[X1(t) + X2(t)]) and exceeding it in bandwidth (pulse sharpness).

KW - Heterojunction bipolar transistors (HBTs)

KW - Lasers

KW - Microwave mixers

KW - Optical mixers

KW - Signal processing

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JF - IEEE Photonics Technology Letters

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High-speed (≥1 GHz) electrical and optical adding, mixing, and processing of square-wave signals with a transistor laser

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Keywords

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