Share Email Print
cover

Proceedings Paper

Seven channel wavelength demultiplexer using a tandem a:SiC-H/a:Si-H photo sensor
Author(s): V. Silva; M. Barata; M. A. Vieira; P. Louro ; M. Vieira
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

optically biased by ultra-violet illumination of the front or back surfaces. The front surface is also used for several pulsed single wavelength signals within the visible range. Experimental results show that the ultra-violet bias illumination at the front surface of the device enhances wavelengths longer than 500 nm while quenching the wavelengths shorter than 500 nm. The opposite happens when the bias is set at the back surface of the device; wavelengths shorter than 500 nm are enhanced while the ones above are quenched. Several digital applications have been built using the p’inpin device. This paper focuses on the use of the pi’npin device for seven channel Wavelength Division Multiplexing (WDM) digital communication using Manchester coded signals, with a single wavelength for each channel. The seven channels form a frame with 7*256 bits with a preamble for signal intensity and synchronization purposes. Results show that the clustering of the received signal enables the successful recovery of the seven channel data using the front and back illumination of the surfaces of the pi’npin photo device.

Paper Details

Date Published: 29 April 2016
PDF: 6 pages
Proc. SPIE 9899, Optical Sensing and Detection IV, 98990B (29 April 2016); doi: 10.1117/12.2225895
Show Author Affiliations
V. Silva, Instituto Superior de Engenharia de Lisboa (Portugal)
CTS-UNINOVA (Portugal)
M. Barata, Instituto Superior de Engenharia de Lisboa (Portugal)
CTS-UNINOVA (Portugal)
M. A. Vieira, Instituto Superior de Engenharia de Lisboa (Portugal)
CTS-UNINOVA (Portugal)
P. Louro , Instituto Superior de Engenharia de Lisboa (Portugal)
CTS-UNINOVA (Portugal)
M. Vieira, Instituto Superior de Engenharia de Lisboa (Portugal)
CTS-UNINOVA (Portugal)


Published in SPIE Proceedings Vol. 9899:
Optical Sensing and Detection IV
Francis Berghmans; Anna G. Mignani, Editor(s)

© SPIE. Terms of Use
Back to Top