A 27μW subcutaneous wireless biosensing platform with optical power and data transfer

We present a batteryless, 27uW barely subcutaneous sensing platform using optical power and data links. We demonstrate an 8.1 mm × 3.2 mm implantable tag powered by an 850nm infrared source through the skin barrier. Measurements using pig skin indicate that optical power transfer through skin achiev...

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Bibliographic Details
Main Authors: Sankaragomathi, Kannan, Perez, Luis, Mirjalili, Ramin, Parviz, Babak, Otis, Brian
Format: Conference Proceeding
Language:English
Subjects:
Biomedical optical imaging
Implants
optical data transfer
Optical fiber communication
Optical power transfer
Optical receivers
Optical sensors
Optical transmitters
sub-cutaneous implant
Online Access:Request full text
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Summary:We present a batteryless, 27uW barely subcutaneous sensing platform using optical power and data links. We demonstrate an 8.1 mm × 3.2 mm implantable tag powered by an 850nm infrared source through the skin barrier. Measurements using pig skin indicate that optical power transfer through skin achieves a 4.9% efficiency, which is higher than mm scale inductive power links. As a proof-of-concept demo, we sense and transmit temperature to an external body worn reader using a fully optical power and data link.
ISSN:0886-5930
2152-3630
DOI:10.1109/CICC.2014.6946089