Ultra-broadband dual-mode 3  dB power splitter based on a Y-junction assisted with mode converters.
A dual-mode 3 dB power splitter for application in an on-chip mode (de)multiplexing system is proposed and demonstrated. This device is composed of mode converters cascaded with a Y-junction. The simulation results show that ∼50∶50 splitting ratio can be achieved for both TM0mode and TM1mode over a wide wavelength range from 1.52 to 1.62 μm. The fabricated device, which consists of a multiplexer, a dual-mode 3 dB power splitter, and a demultiplexer, has insertion losses of 0.54 dB for TM0mode and 0.86 dB for TM1mode at 1.55 μm wavelength. The measured cross talk is 15.7 and 17.2 dB at 1.55 μm wavelength for the TM0mode and TM1mode, respectively.
Hongnan
H
Xu
Yaocheng
Y
Shi