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Samahang Pisika ng Pilipinas 39, (2021).
Authors: Clyde Calgo, Kent Soria, Julius Guillermo, Jezlor Villarde, Benjamin Dingel
Samahang Pisika ng Pilipinas 39, (2021).
Authors: Clyde Calgo, Kent Soria, Julius Guillermo, Benjamin Dingel
29th International Conference on Computers in Education. Asia-Pacific Society for Computers in Education (2021).
Authors: Jose Eos Trinidad, Samantha Joan Ackary, Lyka Janelle Pacleb, Sophia Sue Tabanao, Jan Llenzl Dagohoy
2nd International Conference on Educational Frontiers, November 19-20 2021.
Authors: Alejandro Acero, Alessandra Molo, Samuel Wood, Benjamin Dingel
Optik, Vol. 260, (2022). DOI: https://doi.org/10.1109/JLT.2021.3105242
Authors: Georgios Charalambous, Nicholas Madamopoulos, Benjamin Dingel, Stavros Iezekiel
Abstract: The design, fabrication and characterization of a passive linearized frequency discriminator (FD) filter is presented. The FD filter is designed for silicon-on-insulator (SOI) platform using foundry process design kits (PDKs). Unlike previous FD filters, the design consists of only two MZI stages. The fabrication is performed using the SiEPIC process. Limitations in the knowledge of the exact design of the PDKs, such as waveguide paths and structure are overcome by designing the device with symmetry both in the number of PDK passive components as well as optical path lengths. Excellent agreement with the theoretical results is obtained for the linearity of the transfer function, which extends over a wide bandwidth (80 GHz) ...
IEEE Region 10 Symposium (TENSYMP) 2021, August 23-25 2021 in Korea.
Authors: Benjamin Dingel, John Christian Nacpil
Abstract: We present a new, multifunctional, tunable coupled-ring reflector (CRR) device where the two cascaded microring resonator-based All-Pass Filters (APFs) are now interconnected using a "crisscrossed port connection arrangement and then directly coupled" by a third directional coupler. We derive analytically and investigate numerically its intensity response. We show that it has many unique features such as: (i) asymmetric stopband/passband property, (ii) tunable dual-narrowband passband filter, and (iii) a unique quasi-interleaver characterized by dual-narrowband passband filter interleaved with broadband stopband filter. We also establish the critical parameter relationships that describe these rich responses and compare them to the typical CRR.
16th Conference on Education and Training in Optics and Photonics: ETOP 2021, 12723, SPIE, 2021.
Authors: Benjamin Dingel, Clint Bennett
Abstract: We summarize a unique publication-driven Research Experience for Undergraduates program in optics/photonics that uses electronic circuit analogue-based research to strengthen students’ engagement in research. At present, we have published four journal and conference papers.
Proceedings of the Samahang Pisika ng Pilipinas 39, SPP-2021-3E-05 (2021).
Authors: John Christian Nacpil, Benjamin Dingel
Abstract: We present, for the first time to the best our knowledge, the phase response of a novel Photonic Integrated Circuits (PICs)-based multifunctional, tunable, band-limited optical criss-crossed coupled-ring reflector (X-CRR) that was recently reported. This device has three unique features namely: (i) asymmetric stopband/passband, (ii) dual narrow band filter behavior, and (iii) unique quasi-interleaver characteristic. We derived and investigated the behaviors of the phase responses for each of these three unique features. They are important to fully characterize the X-CRR device.
Luzon Regional Scientific Meeting 2021 (May 11-12, 2021) of the National Academy of Science and Technology (NAST), Philippines, 2021 - Digital Poster.
Authors: Benjamin DIngel, Elijah Tuprio, Clint Bennett
Broadband Access Communication Technologies XV, 117110K (5 March 2021). DOI: https://doi.org/10.1117/12.2584912
Authors: Benjamin DIngel, Simon Borja
Abstract: This paper has four goals. Firstly, we present, for the first time to the best of our knowledge, a minimalist-design, Linear Optical Electric Field Frequency Discriminator (LOEF-FD) for Microwave Photonic Link (MPL) using only a single Mach-Zehnder Interferometer (MZI) configured in unique folded-back arrangement. The standard configuration of LOEF-FD requires two MZI elements in serial arrangement with additional interferometric arm. The original minimalistdesign structure was first proposed by our group and used as an active device known as linear optical field modulator (LOFM) [8]. Here, we use it as a passive LOEF-FD for MPL application ...
European Journal of Physics, Vol. 42, 015605 (2021). DOI: https://doi.org/10.1088/1361-6404/abb56b
Authors: Benjamin DIngel, Krystel de Castro, Jan Llenzl Dagohoy, Nathaniel Libatique, Carlos Oppus
Abstract: We propose, simulate, and experimentally demonstrate a circuit analogue of a special relativity phenomenon known as relativistic aberration of light (RAL) by using a surprisingly simple, low-cost, and easily accessible electronic circuit-based all-pass filter. This work is useful for two audiences: (i) physicists who are interested in research on circuit analogues; and (ii) physics educators who are interested in using the research results to raise interest among students by incorporating analogue-based learning into undergraduate physics lecture and laboratory courses ...