Pixel-to-Pixel Fiber-Coupled Emissive Micro-Light-Emitting Diode Arrays

Author

Zhu, L. ; Ng, C.W. ; Wong, N. ; Wong, K.K.Y. ; Lai, P.T. ; Choi, H.W.

Author_Institution

Dept. of Electr. & Electron. Eng., Univ. of Hong Kong, Hong Kong

Volume

1

Issue

1

fYear

2009

fDate

6/1/2009 12:00:00 AM

Firstpage

1

Lastpage

8

Abstract

We report on an integrated fiber-coupled bi-linear micro-light-emitting diode array, serving as a portable microdisplay system. The fiber bundle transforms the bi-linearly arranged optical signals from the emissive array into a 6-by-8 pixel microdisplay, offering a crisp and clear optical output. The pixel-to-pixel coupling arrangement ensures optical coupling efficiency. Due to the narrow acceptance cones of optical fibers, individual pixels can be well resolved with minimal crosstalk. The performance and functionality of this optical system is fully evaluated. A model to determine the fiber-coupling efficiency was constructed; it was found that the simulated results compare well with the measured data.

Keywords

LED displays; integrated optics; micro-optics; microdisplays; optical arrays; optical crosstalk; optical fibre couplers; bi-linearly arranged optical signal; clear optical output; fiber bundle transforms; integrated bi-linear microlight-emitting diode arrays; optical fiber-coupling efficiency; pixel-to-pixel coupling arrangement; pixel-to-pixel fiber-coupled emissive LED; portable microdisplay system; Biomedical optical imaging; Light emitting diodes; Microdisplays; Optical arrays; Optical coupling; Optical crosstalk; Optical fiber devices; Optical fibers; Optical imaging; Photonics; GaN; fiber coupling; micro-light-emitting diode; microdisplay;

fLanguage

English

Journal_Title

Photonics Journal, IEEE

Publisher

ieee

ISSN

1943-0655

Type

jour

DOI

10.1109/JPHOT.2009.2020963

Filename

4814558