Broadband On-Chip Mode-Division Multiplexer Based on Adiabatic Couplers and Symmetric Y-Junction

Broadband On-Chip Mode-Division Multiplexer Based on Adiabatic Couplers and Symmetric Y-Junction

Blog Article

The mode-division multiplexer/demultiplexer (MMUX/DeMMUX) is the crucial component for the implementation of mode-division multiplexing (MDM) transmission.We propose an on-chip two-mode MMUX/DeMMUX based on adiabatic couplers.Thanks to the principle of mode evolution, the proposed MMUX possesses advantages of broadband operation and high tolerance Queen Metal HDBD/FTBD/Rails of fabrication error.The performance is experimentally evaluated by integrating the proposed MMUX and DeMMUX into an on-chip MDM link, with a low crosstalk of <;-19 dB and insertion loss of <;1.5 dB over a wavelength range of 90 nm.

Furthermore, reasonable performance degradation can be observed for deviations of gap and etch depth UPS Components from -50 to 50 nm.