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Free Space Optical Link for Biomedical Applications

Abualhoul, Mohammad; Svenmarker, Pontus LU ; Wang, Qin; Andersson, Jan Y. and Johansson, Anders J. (2012) 34th Annual International Conference of the IEEE Engineering-in-Medicine-and-Biology-Society (EMBS) In 2012 Annual International Conference of the IEEE Engineering-in-Medicine-and-Biology-Society (EMBS) p.1667-1670
Abstract
Free space optics is an interesting alternative for telemetry with medical implants, due to the high data bandwidths available at optical frequencies. Especially implanted brain-computer interfaces gives rise to large data sets that needs to be transmitted transcutaneous. In this paper we show that it is possible to establish such a link at near-IR wavelengths using a modulated reflector in the implant, thus keeping the laser and the detector on the outside. In addition, we show that it will not only work on short, i.e. touch, distances but also at larger distances, in the range of a meter. We have used an electro absorption modulator to modulate the reflection of an external laser source back towards an external detector. The only part of... (More)
Free space optics is an interesting alternative for telemetry with medical implants, due to the high data bandwidths available at optical frequencies. Especially implanted brain-computer interfaces gives rise to large data sets that needs to be transmitted transcutaneous. In this paper we show that it is possible to establish such a link at near-IR wavelengths using a modulated reflector in the implant, thus keeping the laser and the detector on the outside. In addition, we show that it will not only work on short, i.e. touch, distances but also at larger distances, in the range of a meter. We have used an electro absorption modulator to modulate the reflection of an external laser source back towards an external detector. The only part of this system that needs to be implanted is the modulator and drive electronics. The study has been done both by Monte-Carlo simulations of a multi-layer model of a rat skull, and with an experiment demonstrating the feasibility of the link when transmitted through biological tissue. The results show that it is possible to establish a transcutaneous link with an external laser source and light detector, and an internal modulated reflector. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
in
2012 Annual International Conference of the IEEE Engineering-in-Medicine-and-Biology-Society (EMBS)
pages
1667 - 1670
publisher
IEEE--Institute of Electrical and Electronics Engineers Inc.
conference name
34th Annual International Conference of the IEEE Engineering-in-Medicine-and-Biology-Society (EMBS)
external identifiers
  • wos:000313296501229
  • scopus:84870813407
ISSN
1557-170X
ISBN
978-1-4244-4119-8
DOI
10.1109/EMBC.2012.6346267
language
English
LU publication?
yes
id
b8e1b39a-a03f-480b-8dbf-da7244b70a37 (old id 3577839)
date added to LUP
2013-03-20 14:29:55
date last changed
2017-06-04 03:52:18
@inproceedings{b8e1b39a-a03f-480b-8dbf-da7244b70a37,
  abstract     = {Free space optics is an interesting alternative for telemetry with medical implants, due to the high data bandwidths available at optical frequencies. Especially implanted brain-computer interfaces gives rise to large data sets that needs to be transmitted transcutaneous. In this paper we show that it is possible to establish such a link at near-IR wavelengths using a modulated reflector in the implant, thus keeping the laser and the detector on the outside. In addition, we show that it will not only work on short, i.e. touch, distances but also at larger distances, in the range of a meter. We have used an electro absorption modulator to modulate the reflection of an external laser source back towards an external detector. The only part of this system that needs to be implanted is the modulator and drive electronics. The study has been done both by Monte-Carlo simulations of a multi-layer model of a rat skull, and with an experiment demonstrating the feasibility of the link when transmitted through biological tissue. The results show that it is possible to establish a transcutaneous link with an external laser source and light detector, and an internal modulated reflector.},
  author       = {Abualhoul, Mohammad and Svenmarker, Pontus and Wang, Qin and Andersson, Jan Y. and Johansson, Anders J.},
  booktitle    = {2012 Annual International Conference of the IEEE Engineering-in-Medicine-and-Biology-Society (EMBS)},
  isbn         = {978-1-4244-4119-8},
  issn         = {1557-170X},
  language     = {eng},
  pages        = {1667--1670},
  publisher    = {IEEE--Institute of Electrical and Electronics Engineers Inc.},
  title        = {Free Space Optical Link for Biomedical Applications},
  url          = {http://dx.doi.org/10.1109/EMBC.2012.6346267},
  year         = {2012},
}