Compact waveguide (de)multiplexer based on asymmetric Y-junctions

Yang Gao; Lanting Ji; Yan Xu; Xiaoqiang Sun; Xibin Wang; Yunji Yi; Changming Chen; Fei Wang; Yuanda Wu; Daming Zhang

doi:10.1117/12.2505853

15 November 2018 Compact waveguide (de)multiplexer based on asymmetric Y-junctions

Yang Gao, Lanting Ji, Yan Xu, Xiaoqiang Sun, Xibin Wang, Yunji Yi, Changming Chen, Fei Wang, Yuanda Wu, Daming Zhang

Proceedings Volume 10964, Tenth International Conference on Information Optics and Photonics; 109642R (2018) https://doi.org/10.1117/12.2505853
Event: Tenth International Conference on Information Optics and Photonics (CIOP 2018), 2018, Beijing, China

Abstract

A four-order asymmetric Y-junctions mode (de)multiplexer ((de)MUX) was theoretically proposed for highly integrated on-chip mode-division systems. The high-order mode in the stem waveguide of asymmetric Y-junctions is designed to be separated from the lower-order mode and evolve into the fundamental mode in the narrow arm. Through the widths optimization of branch arms by effective index matching and beam propagation method, the footprint of four-order mode (de)MUX was controlled to be 140×7.1μm². The calculated excess loss and crosstalk were less than 0.3 dB and -18 dB within the operation wavelength range from 1460 to 1660 nm, respectively. This scheme may be expanded to higherorder modes (de)MUX design.

Citation Download Citation

Yang Gao, Lanting Ji, Yan Xu, Xiaoqiang Sun, Xibin Wang, Yunji Yi, Changming Chen, Fei Wang, Yuanda Wu, and Daming Zhang "Compact waveguide (de)multiplexer based on asymmetric Y-junctions", Proc. SPIE 10964, Tenth International Conference on Information Optics and Photonics, 109642R (15 November 2018); https://doi.org/10.1117/12.2505853

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KEYWORDS

Waveguides

Beam propagation method

Electroluminescence

Tolerancing

Multiplexing

Optical interconnects

Optoelectronics

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