Ultra-compact wavelength-division (de)multiplexer on 4H-silicon-carbide-on-insulator platform via inverse design

Optics Letters 2026

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Authors: Wenjie Zhang, Xudong Tong, Bingcheng Yang, Xin Ou, Can Tao, Ailun Yi, Guoquan Zhang
DOI: 10.1364/ol.591199
Cited by: 1
References: 36

Abstract

By employing inverse design with topology optimization, a highly efficient wavelength-division (de)multiplexer (WDM) for the C-band (1550 nm) and L-band (1600 nm) was achieved on a 4H-silicon-carbide-on-insulator (4H-SiCOI) platform. The designed WDM is ultra-compact with a footprint of 8 µm ×4 µm. Experimental results reveal a maximum transmission of -0.76dB (-0.74dB) and an extinction ratio of 17 dB (11 dB) at the C (L) band, with a 3-dB bandwidth of 39 nm (36 nm).

Fields of Study & Subjects

Photonic and Optical Devices Neural Networks and Reservoir Computing Photorefractive and Nonlinear Optics

Publication details

Journal / source
Optics Letters
Publisher
Optica Publishing Group
Volume
51
Issue
7
Pages
1780–1780
Publication date
5 March 2026
Language
EN