Optical wireless receiver for data delivery to retinal implant

Ikramullah Shah, Denis Guangyin Chen, Moaaz Ahmed, Amine Bermak

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

A very low power optical wireless receiver for use in low rate, short range applications, in general, and for use in retinal prosthesis application, in particular, is proposed. Conventional optical wireless receivers are based on transimpedance amplifier and consume large static power which is not suitable for low power biomedical applications. The proposed design consumes no static power. Robust background current rejection is achieved through the use of modulation in polarization domain. A low power receiver has been designed and simulated in 0.18 μm CMOS technology. It consumes 396 nW with a 1.8V supply at a data rate of 32 Kbit/s with a Figure-of-Merit (FoM) of 12pJ/bit. DC Photocurrent of 0 to 300nA can be rejected with a sensitivity of -52 dB m. The receiver can be operated at data rate of 512 Kbps with a sensitivity of -40dbm when sampled twice per bit.

Original languageEnglish
Title of host publication2014 IEEE International Symposium on Circuits and Systems, ISCAS 2014
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages866-869
Number of pages4
ISBN (Print)9781479934324
DOIs
Publication statusPublished - 2014
Externally publishedYes
Event2014 IEEE International Symposium on Circuits and Systems, ISCAS 2014 - Melbourne, VIC, Australia
Duration: 1 Jun 20145 Jun 2014

Other

Other2014 IEEE International Symposium on Circuits and Systems, ISCAS 2014
CountryAustralia
CityMelbourne, VIC
Period1/6/145/6/14

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Keywords

  • Polarization
  • receiver
  • Retinal Prosthesis
  • Wireless Optical

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this

Shah, I., Chen, D. G., Ahmed, M., & Bermak, A. (2014). Optical wireless receiver for data delivery to retinal implant. In 2014 IEEE International Symposium on Circuits and Systems, ISCAS 2014 (pp. 866-869). [6865273] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ISCAS.2014.6865273