Array of concentric CMOS photodiodes for detection and de-multiplexing of spatially modulated optical channels |
| |
| Authors: | Syed H. Murshid Jamil Iqbal |
| |
| Affiliation: | 1. RIAM, Kyushu University, Kasuga, Fukuoka, Japan;2. Tokai University, Toroku, Kumamoto, Japan;1. College of Chemistry, Chemical Engineering and Environmental Engineering, Liaoning Shihua University, Fushun 113001, PR China;2. School of New Energy, Shenyang Institute of Engineering, Shenyang 110136, PR China;3. College of Petroleum Engineering, Liaoning Shihua University, Fushun 113001, PR China;1. Department of Electronic Engineering, Sogang University, Seoul 04107, Republic of Korea;2. Department of Computer Science and Engineering, Seoul National University of Science and Technology, Seoul 01811, Republic of Korea;1. Centro Universitario de la Defensa Zaragoza, Zaragoza, Spain;2. Aragón Institute of Engineering Research, Universidad de Zaragoza, Spain;1. Department of Electrical Engineering and Computer Science, University of Kansas, Lawrence, KS 66044, USA;2. Information Directorate, Air Force Research Laboratory, Rome, NY 13441, USA |
| |
| Abstract: | A novel octagonal structure of photodiodes using standard CMOS technology has been developed to serve as a de-multiplexer for spatially multiplexed fiber optic communication systems. Concentric photodiodes of six different structure types are investigated for this purpose. The responsivity of the fabricated devices lies within ten percent of the theoretical values at 660 nm. The concept is demonstrated for silicon and the geometry can be extended to other materials commonly used in optical communications. This presents structural details, device model and equivalent circuits for these devices. Test results for detector responsivity, leakage currents and quantum efficiency are also presented. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
