Direct integration of micro-LEDs and a SPAD detector on a silicon CMOS chip for data communications and time-of-flight ranging | Zendy

J. F. C. Carreira | Zendy; Alexander D. Griffiths | Zendy; Enyuan Xie | Zendy; Benoit Guilhabert | Zendy; Johannes Herrnsdorf | Zendy; Robert Henderson | Zendy; Erdan Gu | Zendy; Michael J. Strain | Zendy; Martin D. Dawson | Zendy

Open Access

Direct integration of micro-LEDs and a SPAD detector on a silicon CMOS chip for data communications and time-of-flight ranging

Author(s) -

J. F. C. Carreira,

Alexander D. Griffiths,

Enyuan Xie,

Benoit Guilhabert,

Johannes Herrnsdorf,

Robert Henderson,

Erdan Gu,

Michael J. Strain,

Martin D. Dawson

Publication year - 2020

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.384746

Subject(s) - ranging , cmos , chip , light emitting diode , optoelectronics , detector , avalanche photodiode , modulation (music) , materials science , data transmission , diode , optics , physics , computer science , electrical engineering , telecommunications , engineering , acoustics

We present integration of singulated micron-sized light emitting diodes (micro-LEDs) directly onto a silicon CMOS drive chip using a transfer printing method. An 8x8 micro-LED device array with individual control over each pixel is demonstrated with modulation bandwidths up to 50 MHz, limited by the large modulation depth of the driver chip. The 2 kHz frame rate CMOS driver also incorporates a Single Photon Avalanche Diode device thus allowing detection and transmission functionality on a single integrated chip. Visible light communications at data rates up to 1 Mbps, and time-of-flight ranging with cm-scale resolution are demonstrated using this hybrid integrated system.

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