High signal-to-noise ratio avalanche photodiodes with perimeter field gate and active readout

Marc Dandin; Pamela Abshire

doi:10.1109/LED.2012.2186112

High signal-to-noise ratio avalanche photodiodes with perimeter field gate and active readout

Marc Dandin
, Pamela Abshire

Electrical Engineering

University of Maryland, College Park

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

23 Scopus citations

Abstract

This letter describes an avalanche photodiode (APD) fabricated in a 0.5-μm CMOS process. In Geiger mode, the APD had an area-normalized dark count rate as low as 2 Hzμm ² at room temperature. Its signal-to-noise ratio (SNR) increased by an order of magnitude as a result of perimeter field gating. We demonstrate that under high-illumination conditions, perimeter field gating maximizes SNR, whereas under low-light conditions, it maximizes sensitivity.

Original language	English
Article number	6165634
Pages (from-to)	570-572
Number of pages	3
Journal	IEEE Electron Device Letters
Volume	33
Issue number	4
DOIs	https://doi.org/10.1109/LED.2012.2186112
State	Published - Apr 2012

Keywords

Avalanche breakdown
avalanche photodiodes (APDs)

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10.1109/LED.2012.2186112

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abstract = "This letter describes an avalanche photodiode (APD) fabricated in a 0.5-μm CMOS process. In Geiger mode, the APD had an area-normalized dark count rate as low as 2 Hzμm 2 at room temperature. Its signal-to-noise ratio (SNR) increased by an order of magnitude as a result of perimeter field gating. We demonstrate that under high-illumination conditions, perimeter field gating maximizes SNR, whereas under low-light conditions, it maximizes sensitivity.",

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AB - This letter describes an avalanche photodiode (APD) fabricated in a 0.5-μm CMOS process. In Geiger mode, the APD had an area-normalized dark count rate as low as 2 Hzμm 2 at room temperature. Its signal-to-noise ratio (SNR) increased by an order of magnitude as a result of perimeter field gating. We demonstrate that under high-illumination conditions, perimeter field gating maximizes SNR, whereas under low-light conditions, it maximizes sensitivity.

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KW - avalanche photodiodes (APDs)

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High signal-to-noise ratio avalanche photodiodes with perimeter field gate and active readout

Abstract

Keywords

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