Silicon Photonic CWDM Filter with Compact Footprint, Low Loss, Flat-Top Transmission and High Yield

arXiv (Cornell University) 2026 Preprint Open access

Read full text
Authors: Qingzhong Deng, Alaa Elshazly, Rafal Magdziak, Liesbeth Witters, Swetanshu Bipul, Maumita Chakrabarti, Dimitrios Velenis, Filippo Ferraro, Hüseyin Şar, Peter Verheyen, Philippe Absil, Peter Ossieur
+2 more Imen Jadli, Joris Van Campenhout
DOI: 10.48550/arxiv.2605.25106
Cited by: 1

Abstract

A novel silicon photonic CWDM filter design is proposed and experimentally demonstrated. The design has achieved flat-top transmission across all dies on a wafer, with a device footprint of 48*25 μm2, an insertion loss of 0.24 $\pm$ 0.18 dB, and a channel central wavelength standard deviation of 0.77 nm.

Fields of Study & Subjects

Photonic and Optical Devices Advanced Photonic Communication Systems Optical Coatings and Gratings

Publication details

Journal / source
arXiv (Cornell University)
Publication date
24 May 2026
Document type
Preprint