Silicon PIC for ROADM in MCF Communication — Wavelength band switching

Project Details


In future optical networks, MCF communication should be combined with WDM technology in order to achieve a maximum communication capacity. However, in network nodes, when channels from different cores of the input MCF are carried at the same wavelength and need to be switched to the same core of the output MCF, a wavelength conflict occurs. Fortunately, such conflict could be avoided by wavelength-converting the waveband from one input core to another band. Traditional transponders based on optical to electrical to optical (O/E/O) conversions not only have higher energy consumption, but are unable to perform wavelength band conversion. Silicon (Si), amorphous silicon (a-Si), or silicon nitride (Si3N4)not only enable wide-band wavelength conversion with modulation format transparency, but also share the same platform as silicon PIC-based ROADMs. The goal of this Sapere Aude project is to explore wavelength band switching in
silicon PIC-based ROADMs using ultra-low loss Si, a-Si or Si3N4 nano-waveguides, which will be fabricated at DTU Danchip. Depending on the input core for which FWM needs to be performed, pump light will be selectively coupled to the corresponding nano-waveguide. The converted signals will be coupled to the required core of the output MCF by the switching matrix in the ROADM.
Effective start/end date01/11/201331/10/2016