Compact 1×4 wavelength demultiplexer based on directional coupling of periodic dielectric waveguides.
A compact 1×4 wavelength demultiplexer is proposed based on the directional coupling of periodic dielectric waveguides for optical communication wavelengths. With appropriate optimization, the 1×4 wavelength demultiplexer can route 1130, 1310, 1490, and 1700 nm wavelengths to corresponding out ports with a transmittance of more than 95%. This provides a simple and compact demultiplexer that is expected to be applied to highly dense photonic integrated circuits.
Key Laboratory of Physical Electronics and Devices of the Ministry of Education, Xi'an Jiaotong University, Xi'an, China.
Lin
L
Huang
Bing
B
Chen
Yongdong
Y
Li
Chunliang
C
Liu