Document Type
Conference Proceeding
Publication Date
7-2025
Abstract
Previously, we reported a multifunctional optical filter which is a Photonic Integrated Circuit (PIC)–based, noncascaded bandpass filter wherein the Ring Resonators-based Direct-Coupled-All-Pass Filter (D-APF) and Cross-coupled All-pass Filter (C-APF) are attached to each of the arms of a single Mach Zehnder Interferometer (MZI). This device is an alternative platform to the conventional platform of programmable photonic filters that does not rely on combining different photonic elements to implement various filter functionalities. For one, it can generate (i) Narrowband Filter, (ii) Asymmetric Interleaver (AI) and (iii) Symmetric Interleaver (SI) responses by varying limited number of specific parameters of the device. It can demonstrate unique and selectable features with (a) flat-top, nearly zero-ripple and (b) dual-bandwidth frequency responses when the circumferences of both the C-APF and D-APF are the same.
Recommended Citation
Lapiña, R. B. L., Dingel, B. B., & Bennett, C. D. (2025). Numerical approach to the optimization of the bandwidth tunability of a non-cascaded multifunctional optical filter [Conference presentation abstract]. Department of Physics, Ateneo de Manila University. Archīum Ateneo. https://archium.ateneo.edu/
