TY - GEN
T1 - GaN based µLED drive circuit for visible light communication (VLC) with improved linearity using on-chip optical feedback
AU - Zuhdi, Ahmad Wafi Mahmood
AU - McKendry, Jonathan J.D.
AU - Henderson, Robert K.
AU - Gu, Erdan
AU - Dawson, Martin D.
AU - Underwood, Ian
PY - 2017/2/9
Y1 - 2017/2/9
N2 - Solid-state lighting is a rapidly developing field. Visible Light Emitting Diodes (LEDs) are becoming more efficient, have high reliability and can be incorporated into many lighting applications. LED is predicted to become the main source of general illumination due to its high energy efficiency. Such source can also modulate at high speed, thus offering a prospect of illumination and communications simultaneously. Various modulation techniques have been employed such as OOK and OFDM, where the latter has shown ability to transmit into Gb/s region. However, OFDM requires high linearity response from the driver's optical power output. In this paper, we present a drive circuit for GaN μLED which employs on-chip optical feedback technique to suppress non-linearity of the optical power output from the μLED for Visible Light Communication (VLC) with OFDM modulation.
AB - Solid-state lighting is a rapidly developing field. Visible Light Emitting Diodes (LEDs) are becoming more efficient, have high reliability and can be incorporated into many lighting applications. LED is predicted to become the main source of general illumination due to its high energy efficiency. Such source can also modulate at high speed, thus offering a prospect of illumination and communications simultaneously. Various modulation techniques have been employed such as OOK and OFDM, where the latter has shown ability to transmit into Gb/s region. However, OFDM requires high linearity response from the driver's optical power output. In this paper, we present a drive circuit for GaN μLED which employs on-chip optical feedback technique to suppress non-linearity of the optical power output from the μLED for Visible Light Communication (VLC) with OFDM modulation.
KW - visible light emitting diodes
KW - GaN
KW - OFDM modulation
KW - on-chip optical feedback
KW - visible light communication
KW - μLED drive circuit
KW - optical feedback
KW - wide band gap semiconductors
KW - gallium compounds
UR - http://www.scopus.com/inward/record.url?scp=85015389316&partnerID=8YFLogxK
U2 - 10.1109/TENCON.2016.7848683
DO - 10.1109/TENCON.2016.7848683
M3 - Conference contribution book
AN - SCOPUS:85015389316
SN - 9781509025985
T3 - Proceedings of IEEE Region Ten Conference
SP - 3394
EP - 3397
BT - Proceedings of the 2016 IEEE Region 10 Conference (TENCON)
PB - IEEE
CY - Piscataway, N.J.
T2 - 2016 IEEE Region 10 Conference
Y2 - 22 November 2016 through 25 November 2016
ER -