Title :
Demonstration of pulse frequency division multiplexing using terahertz optical asymmetric demultiplexer
Author :
Frenkel, A. ; Chan, T.G. ; Glesk, I. ; Prucnal, P.R.
Author_Institution :
Dept. of Eng., New Mexico Highlands Univ., Las Vegas, NM, USA
Abstract :
A new method of pulse frequency division multiplexing (PFDM) to increase the capacity of local fiber-optic communications networks heavily relies on optical signal processing using an all-optical AND gate. In this work, we report a conceptual demonstration of the PFDM method using a terahertz optical asymmetric demultiplexer as a fast (picosecond switching time), low switching energy (as low as 125 fJ) optical AND gate for the optical signal processing. This creates a real possibility for the practical realization of the PFDM method.
Keywords :
demultiplexing equipment; frequency division multiplexing; optical fibre networks; optical logic; photonic switching systems; 125 fJ; PFDM; local fiber-optic communications networks; optical AND gate; optical signal processing; picosecond switching time; pulse frequency division multiplexing; terahertz optical asymmetric demultiplexer; Fiber nonlinear optics; Frequency division multiplexing; Optical bistability; Optical mixing; Optical pulses; Optical receivers; Optical signal processing; Optical transmitters; Pulse amplifiers; Pulse modulation;
Journal_Title :
Photonics Technology Letters, IEEE
