Title :
Design and Analysis of CMOS-Controlled Tunable Photodetectors for Multiwavelength Discrimination
Author :
Chen, Ray ; Fu, Junxian ; Miller, David A B ; Harris, James S., Jr.
Author_Institution :
Dept. of Electr. Eng., Stanford Univ., Stanford, CA, USA
Abstract :
In this paper, a metal-semiconductor-metal (MSM) based photodetector for multiple wavelength discrimination is fully introduced and analyzed. Its spectral response is programmable electrically through a set of low-voltage binary patterns that can be generated from CMOS circuits. Consequently, the wavelength reconfiguration time of the detector is set primarily by the electronics switching time, which is on the order of nanoseconds. Additionally, the spectral response of the detector can be arbitrarily shaped for any specific system need based on algorithms we introduce here. The nanosecond wavelength reconfigurability feature of the detector offers flexibility for designing high-efficiency wavelength reconfigurable optical networks.
Keywords :
CMOS integrated circuits; metal-semiconductor-metal structures; optical design techniques; optical fibre networks; optical tuning; photodetectors; wavelength division multiplexing; CMOS circuits; CMOS-controlled tunable photodetector design; low-voltage binary patterns; metal-semiconductor-metal-based photodetector; multiwavelength discrimination; optical networks; spectral response; wavelength reconfiguration time; wavelength-division multiplexing; Dense wavelength-division multiplexing (DWDM); metal–semiconductor–metal (MSM) photodetector; optical access network; optical code division multiple access (OCDMA); optical sensing; passive optical network (PON); reconfigurable WDM network; telecommunication; tunable photodetector;
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2009.2032248
