Article
Nanoscience & Nanotechnology
Yu Chen, Lu Xu, WeiJun Jiang, Lin Wang, Shuai Cui, Yu Yu, Yuan Yu, Xinliang Zhang
Summary: This article introduces a second-order all-pass filter (APF) based on Mach-Zehnder interferometer-assisted microring resonators, which can achieve adjustable time delay and phase shift, and can be reconfigured to a first-order APF to enhance its flexibility.
Article
Optics
Kamal Kishor Choure, Ankur Saharia, Nitesh Mudgal, Rahul Pandey, Ankit Agarwal, Manisha Prajapat, Ravikumar Maddila, Manish Tiwari, Ghanshyam Singh
Summary: The paper introduces a novel all-optical 2x1 and 4x1 reversible multiplexer using an optical microring resonator (OMRR). Numerical modeling of the Silicon Nitride (Si3N4)-based OMRR was performed and utilized in the design of the reversible multiplexers. The proposed models were validated through MATLAB results, with simulation results indicating high performance and practical realization, as demonstrated by desired figures of merits such as extinction ratio (ER) of 20.29 dB, amplitude modulation (AM) of 0.71 dB, and contrast ratio (CR) of 19.54 dB.
OPTICS COMMUNICATIONS
(2023)
Article
Optics
Min G. Lim, Young J. Park, Dong J. Choi, Dong U. Kim, Myung S. Hong, Man J. Her, Alain Y. Takabayashi, Youngjae Jeong, Jongwoo Park, Seungjun Han, Niels Quack, Youngseok Bae, Kyoungsik Yu, Sangyoon Han
Summary: In this research, a fully integrated second-order CROW filter using silicon photonic MEMS with adjustable couplers and phase shifters was developed. The filter demonstrated high extinction ratios and continuous wavelength tuning, and showed reconfigurability in second-order CROW.
Article
Engineering, Electrical & Electronic
Dajian Liu, Long Zhang, Ying Tan, Daoxin Dai
Summary: A silicon photonic filter with an ultra-large free spectral range was proposed and demonstrated using high-order adiabatic elliptical-microrings and bent directional couplers. The filters based on different orders of AEMs achieved a box-like spectral response with an FSR of about 37 nm. An eight-channel silicon photonic filter with a channel-spacing of around 3.2 nm and high extinction ratios of >30 dB was also demonstrated in the study.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2021)
Article
Physics, Multidisciplinary
Chao Wu, Qilin Zheng, Yingwen Liu, Yang Wang, Jiangfang Ding, Pingyu Zhu, Shichuan Xue, Miaomiao Yu, Weihong Luo, Kaikai Zhang, Anqi Huang, Mingtang Deng, Junjie Wu, Ping Xu
Summary: In this study, a reconfigurable ring resonator with tunable quality factors was proposed and demonstrated to efficiently increase the dimensionality of frequency entanglement. The method utilized an asymmetric Mach-Zehnder interferometer to modulate the quality factor, resulting in a significant increase in Schmidt number and CAR while maintaining a high pair generation rate. This approach is widely applicable to other material-based ring resonators and can serve as a general solution for high-dimensional quantum frequency combs.
SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
(2023)
Article
Engineering, Electrical & Electronic
Yifan Liu, Yu Chen, Lin Wang, Yu Yu, Yuan Yu, Xinliang Zhang
Summary: This paper presents a tunable and reconfigurable bandpass microwave photonic filter (MPF) using four cascaded silicon-on-insulator (SOI) microring resonators (MRRs). The center frequency and bandwidth of the filter can be adjusted by tuning the resonant wavelengths and coupling coefficients of the MRRs. The operation state of each MRR can be monitored for precise adjustment. Experimental results show that the filter maintains a high rejection ratio during the tuning process. This filter has potential applications in radar, sensor networks, and wireless communications.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2022)
Article
Physics, Multidisciplinary
Qilin Zheng, Jiacheng Liu, Chao Wu, Shichuan Xue, Pingyu Zhu, Yang Wang, Xinyao Yu, Miaomiao Yu, Mingtang Deng, Junjie Wu, Ping Xu
Summary: Using a tunable asymmetric Mach-Zehnder interferometer coupled silicon microring resonator, a high brightness and high-dimensional entanglement source has been achieved, which has significant value for quantum technologies.
Article
Physics, Applied
Saawan K. Bag, Rajat K. Sinha, Meher Wan, S. K. Varshney
Summary: This study presents an integrated photonic platform for detecting single nanoparticles, capable of distinguishing between different sizes and quantities of nanoparticles, and has the potential to detect single nanoparticles of infinitesimally small size.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2021)
Article
Engineering, Electrical & Electronic
David W. U. Chan, Xiong Wu, Zunyue Zhang, Chao Lu, Alan Pak Tao Lau, Hon Ki Tsang
Summary: This paper presents a compact and high-bandwidth CMOS compatible silicon microring modulator with an ultra-wide free-spectral range. By utilizing this modulator for intensity modulation-direct detection transmission and wavelength division multiplexing, high-speed data transmission is achieved.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2022)
Article
Engineering, Electrical & Electronic
Xi Zhou, Kaixuan Chen, Liu Liu
Summary: In this letter, novel microring arrays with flat-top outputs are proposed and experimentally demonstrated for WDM demultiplexer applications. Multiple microrings in series have parallel-output and can be detected by a single photodetector, representing one channel response of WDM. The proposed 8-channel demultiplexer with 1.5 nm channel spacing exhibits a -11.7 dB crosstalk, improving to -25 dB with the use of second-order microrings.
IEEE PHOTONICS TECHNOLOGY LETTERS
(2023)
Article
Engineering, Electrical & Electronic
Weifeng Zhang, Lang Zhou, Yuwen Xu, Zhenyu Zhao, Shuang Zheng
Summary: We demonstrate a multifunctional optical spectral shaper on a silicon photonic chip, which enables flexible optical spectral shaping including tunable comb filtering, Fano and EIT-like resonances. The device consists of a tunable microring resonator (MRR) and three tunable Sagnac loop mirrors (SLMs), and can be reconfigured to different functional structures. The experimental results show high extinction ratio and quality factor, indicating its potential for applications in optical wavelength-division multiplexing (WDM) communication networks.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2022)
Article
Chemistry, Analytical
Piero Borga, Francesca Milesi, Nicola Peserico, Chiara Groppi, Francesco Damin, Laura Sola, Paola Piedimonte, Antonio Fincato, Marco Sampietro, Marcella Chiari, Andrea Melloni, Riccardo Bertacco
Summary: Integrated optical biosensors are gaining attention for their use in lab-on-chip platforms. Opto-Magnetic biosensing allows off-line optical measurement of tiny variations in refractive index, leading to low detection limits and fast measurement times.
Article
Optics
Fatemeh Dehghani, Meisam Abdollahi, Siamak Mohammadi, Behrang Barekatain
Summary: The optical network-on-chip (ONoC) is a promising alternative to the traditional electrical network, but the crosstalk noise and insertion loss significantly limit its scalability in manycore systems. This paper proposes a 2 x 2 optical switch composed of two microring resonator-based switching elements and investigates the effects of reducing power loss on the transmission spectra.
OPTICAL ENGINEERING
(2022)
Article
Chemistry, Analytical
Hsuan Lai, Tzu-Ning Kuo, Jia-Yi Xu, Shih-Hsiang Hsu, Yi-Cheng Hsu
Summary: In recent years, silicon-on-insulator substrates have been widely used in high-speed and low-power electronic components. The high refractive index contrast of the silicon wire allows for significant reduction in the size of photonic devices. Additionally, the silicon photonic process is compatible with complementary metal-oxide-semiconductor fabrication, which benefits the development of high-density optoelectronic integrated circuits. This paper proposes the use of a microring resonator (MRR) as a biosensor on the silicon platform. By optimizing the coupling, MRR length, and optical source bandwidth, the biosensing sensitivity can be enhanced. Experimental results demonstrate a high sensitivity under specific conditions.
Article
Nanoscience & Nanotechnology
Arieh Grosman, Tal Duanis-Assaf, Noa Mazurski, Roy Zektzer, Christian Frydendahl, Liron Stern, Meital Reches, Uriel Levy
Summary: This paper reports a chip-scale photonic sensor for detecting SARS-CoV-2 in clinical samples. The sensor consists of a silicon-nitride double microring resonator, with one ring activated with DNA primers for SARS-CoV-2 RNA and the other serving as a reference. The sensor demonstrates the ability to detect RNA fragments at a concentration of 10 cp/μL with a sensitivity of 750 nm/RIU. This device shows promise as a label-free, small form factor, CMOS compatible biosensor for SARS-CoV-2, as well as other viruses and pathogens.
Article
Chemistry, Multidisciplinary
Samuele Lilliu, Thomas G. Dane, Mejd Alsari, Jonathan Griffin, Alexander T. Barrows, Marcus S. Dahlem, Richard H. Friend, David G. Lidzey, J. E. Macdonald
ADVANCED FUNCTIONAL MATERIALS
(2016)
Article
Optics
Henrik Melkonyan, Kenaish Al Qubaisi, Karen Sloyan, Anatol Khilo, Marcus S. Dahlem
Article
Engineering, Electrical & Electronic
Henrik Melkonyan, Karen Sloyan, Krishna Twayana, Paulo Moreira, Marcus S. Dahlem
IEEE PHOTONICS JOURNAL
(2017)
Article
Chemistry, Physical
Calvyn T. Howells, Sueda Saylan, Haeri Kim, Khalid Marbou, Tetsua Aoyama, Aiko Nakao, Masanobu Uchiyama, Ifor D. W. Samuel, Dong-Wook Kim, Marcus S. Dahlem, Pascal Andre
JOURNAL OF MATERIALS CHEMISTRY A
(2018)
Article
Engineering, Electrical & Electronic
Mutasem Odeh, Krishna Twayana, Karen Sloyan, Juan E. Villegas, Sujith Chandran, Marcus S. Dahlem
IEEE PHOTONICS JOURNAL
(2019)
Article
Engineering, Electrical & Electronic
Humaira Zafar, Mutasem Odeh, Anatol Khilo, Marcus S. Dahlem
IEEE PHOTONICS TECHNOLOGY LETTERS
(2020)
Article
Engineering, Electrical & Electronic
Wim Bogaerts, Sarvagya Dwivedi, Roelof Jansen, Xavier Rottenberg, Marcus S. Dahlem
Summary: The chip-based optical beam scanner utilizes a dispersive optical phased array to illuminate the far field with a pixelated pattern. By breaking up the OPA into manageable blocks with dispersive delay lines, it enables the scaling up of antennas. The power distribution of individual OPA antennas can control the sidelobes and the power in the main lobe in the far-field illumination.
IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS
(2021)
Article
Engineering, Electrical & Electronic
Sarvagya Dwivedi, Jon Kjellman, Tangla David, Mathias Prost, Olga Syshchyk, Edward Van Sieleghem, Jiwon Lee, Aleks Marinins, Philippe Soussan, Marcus Dahlem, Xavier Rottenberg, Roelof Jansen
Summary: Highly-doped silicon-based PN junction photodetectors were designed and fabricated for calibration and power monitoring of photonic integrated circuits in the C-band. The devices showed high responsivity and reasonable dark current, making them ideal candidates for power monitoring and phase calibration of PICs. Integration with an interferometric phase-interrogator structure further enhances their performance for test calibration circuits.
IEEE PHOTONICS TECHNOLOGY LETTERS
(2021)
Article
Engineering, Electrical & Electronic
Jon Oyvind Kjellman, Mathias Prost, Aleksandrs Marinins, Hemant Kumar Tyagi, Tangla David Kongnyuy, Sarvagya Dwivedi, Marcus S. Dahlem, Philippe Soussan, Xavier Rottenberg, Roelof Jansen
Summary: This paper presents a scalable on-chip phase calibration method for optical phased arrays using a compact phase interrogator structure. The method is demonstrated in a 64-channel optical phased array with a 2.5 μm pitch, achieving a wide beam steering range and low side lobe level after calibration.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2022)
Article
Engineering, Electrical & Electronic
Ayat M. Taha, Soha Yousuf, Marcus S. Dahlem, Jaime Viegas
Summary: This paper studies the gas sensing performance of a compact silicon photonics Mach-Zehnder interferometer (MZI) with a coiled sensing arm. The sensitivity and detection limit of the sensor were measured using inert gases, He and N-2. The inclusion of a cladded ring-resonator helped resolve the temperature drift, and a suspended MZI was designed to enhance sensitivity.
IEEE PHOTONICS JOURNAL
(2022)
Article
Engineering, Electrical & Electronic
Ayat Taha, Sujith Chandran, Jaime Viegas, Yusheng Bian, Michal Rakowski, Rod Augur, Ajey Jacob, Marcus Dahlem
Summary: This study demonstrates a compact four-channel wavelength division multiplexer using an arrayed waveguide grating based on multimode interference couplers, with a thin device layer design. A semi-numerical approach was used for device design and simulation, with optical measurements consistent with simulation results. The device showed channel spacing of 97 GHz, 3-dB bandwidth of 87 GHz, and crosstalk of 9.6 dB for the designed wavelength of operation near 1310 nm.
IEEE PHOTONICS JOURNAL
(2021)
Article
Optics
Henrik Melkonyan, Karen Sloyan, Mutasem Odeh, Ibraheem Almansouri, Matteo Chiesa, Marcus S. Dahlem
JOURNAL OF PHYSICS-PHOTONICS
(2019)
Proceedings Paper
Instruments & Instrumentation
Ayat M. Taha, Bruna Paredes, Anatol Khilo, Marcus S. Dahlem
INTEGRATED OPTICS: DEVICES, MATERIALS, AND TECHNOLOGIES XXI
(2017)
Proceedings Paper
Engineering, Electrical & Electronic
Karen Sloyan, Henrik Melkonyan, Paulo Moreira, Marcus S. Dahlem
ADVANCED FABRICATION TECHNOLOGIES FOR MICRO/NANO OPTICS AND PHOTONICS X
(2017)
Article
Optics
Mutasem Odeh, Bob Voort, Arslan Anjum, Bruna Paredes, Clara Dimas, Marcus S. Dahlem
