Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

LED dynamic electro-optical responses and light-fidelity-application optimization

Not Accessible

Your library or personal account may give you access

Abstract

Commercial light-emitting diodes (LEDs) from different manufacturers were studied by means of impedance measurements in the frequency range between 75 kHz and 10 MHz. Electrical characteristics of these LEDs, such as impedance and resistance, were proven to be strongly influenced by the applied frequencies, the bias values, and the alternating-signal amplitudes. Through these measurements, a specific bias value, which later could be of great importance, was pointed out. Coupled with the optical signal-to-noise ratio measurements, this frequency-, bias-, and alternating-signal-amplitude-dependent impedance shows a close correlation between optical and electrical responses of LEDs, which turns out to be useful for visible light communication. Hence, a new and simple method of light-fidelity optimization through impedance measurements is proposed in this article.

© 2014 Optical Society of America

Full Article  |  PDF Article
More Like This
Specific innovative semi-transparent solar cell for indoor and outdoor LiFi applications

Emilie Bialic, Luc Maret, and Dimitri Kténas
Appl. Opt. 54(27) 8062-8069 (2015)

Adaptive 84.44−190 Mbit/s phosphor-LED wireless communication utilizing no blue filter at practical transmission distance

C. H. Yeh, C. W. Chow, H. Y. Chen, J. Chen, and Y. L. Liu
Opt. Express 22(8) 9783-9788 (2014)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (15)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Tables (1)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (2)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved