Review
Nanoscience & Nanotechnology
Ha Young Lee, Sejeong Kim
Summary: Nanowires have attracted considerable attention in the fields of photonics and optoelectronics due to their unique features. The combination of nanowires and 2D materials has been extensively studied to enhance the properties of light emitting materials. This review article summarizes recent studies on the application of different types of nanowires in photonics and optoelectronics, as well as the hybridization of nanowires and 2D materials. The review also discusses the future prospects of nanowires and 2D materials for photonics and optoelectronics.
Article
Optics
Xu Hua Cao, Xiao Jie Fan, Ming Li, Ning Hua Zhu, Wei Li
Summary: In this study, we propose a novel photonic approach to generate reconfigurable multi-frequency multiple binary modulation formats microwave signals using a dual-polarization dual-drive Mach-Zehnder modulator. By setting the proper formats of coding signals, various modulation formats of microwave signals can be generated successfully without changing the system structure.
OPTICS COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Xinxin Gao, Ze Gu, Qian Ma, Wen Yi Cui, Tie Jun Cui, Chi Hou Chan
Summary: Driven by the demands for compact interconnects and fast information transfer, research on spoof plasmonic metamaterials has been focused on achieving individual modulation of amplitude or phase at single frequencies due to structural limitations. This study proposes and experimentally demonstrates an ultra-thin reprogrammable modulator consisting of a spoof surface plasmonic polariton (SSPP) waveguide and spoof localized surface plasmon (SLSP) resonators, allowing independent control of amplitude and phase of surface waves. By manipulating the SSPP waveguide and SLSP resonators in real-time, various programmable modulations such as amplitude-shift keying, phase-shift keying, quadrature amplitude modulation, and frequency-shift keying can be achieved. Measurement results confirm the potential applications of the reprogrammable plasmonic metamaterial in integrated circuits and communication systems.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Yishi Han, Changsheng Zeng, Yongming Zhong, Zhongguo Guo, Guanfeng Guo, Zhongkun Li, Hongyi Ren, Shaowu Xie, Hongxia Liang, Gengxin Zheng
Summary: This photonic scheme utilizes a dual-polarization dual-parallel Mach-Zehnder modulator (DP-DPMZM) to generate ternary modulated signals with multiple wavebands and a large frequency range.
APPLIED SCIENCES-BASEL
(2022)
Article
Nanoscience & Nanotechnology
Cai-Syuan Fu, Chih-Hsien Cheng, Cheng-Hsuan Hsieh, Huai-Yung Wang, Cheng-Ting Tsai, Yu-Chieh Chi, Gong-Ru Lin
Summary: Demonstration of all-optical phase-shift-keying (PSK) data conversion beyond 10 Gbit/s using a carbon-doped silicon carbide (SiC:C) waveguide microring resonator with the nonlinear Kerr effect switching. The nonlinear Kerr switching leads to enhanced signal-to-noise ratio (SNR) of the converted amplitude-shift keying (ASK) data. The conversion between ASK and PSK modulation formats is achieved through nonlinear phase variation in the SiC:C microring. By combining microring-based delay-line interference, demodulated PSK data achieves received SNR, extinction ratio, and bit-error ratio.
Article
Engineering, Electrical & Electronic
Sha Zhu, Zhijie Chen, Yunxin Wang, Ya Jin, Kunpeng Zhai, Yunping Bai, Jun Tan, Peiyuan Wan, Xu Liu, Wei Li, Ning Hua Zhu
Summary: This paper proposes and demonstrates a photonic multi-format background-free binarily modulated microwave signal generator using a single dual-polarization dual-parallel Mach-Zehnder modulator. The generator features good reconfiguration and switchability, capable of generating microwave signals with multiple modulation methods.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2022)
Article
Engineering, Electrical & Electronic
Yongqian Li, Lei Wang, Lixin Zhang, Haijun Fan, Yanrui Liu
Summary: The proposed method of reducing coherent Rayleigh noise using Phase Shift Keying pulse coding has been theoretically and experimentally validated, showing effective reduction of amplitude fluctuation in optical fiber sensing systems, especially in scenarios requiring high spatial resolution and accuracy.
OPTICAL FIBER TECHNOLOGY
(2021)
Article
Computer Science, Information Systems
Yi Luo, Changzheng Sun, Bing Xiong, Jian Wang, Zhibiao Hao, Yanjun Han, Hongtao Li, Lai Wang
Summary: In this paper, the authors present their work on high-speed optoelectronic devices, including semiconductor lasers, electro-optic modulators, and photodetectors, as well as their applications in fiber communications and microwave photonics.
SCIENCE CHINA-INFORMATION SCIENCES
(2023)
Article
Chemistry, Physical
Zilan Tang, Shula Chen, Dong Li, Xiaoxia Wang, Anlian Pan
Summary: With the increasing demand for fast processing and large data capacity, traditional silicon-based technology is becoming saturated. New strategies, such as using two-dimensional (2D) materials, are being explored. This review focuses on the integration of 2D materials into silicon-based platforms for photonic applications, summarizing their optical properties and discussing the state-of-the-art devices and future challenges.
JOURNAL OF MATERIOMICS
(2023)
Article
Materials Science, Multidisciplinary
Mohammad Reza Alizadeh, Mahmood Seifouri, Saeed Olyaee
Summary: This article presents a novel approach to achieve a highly compact Si3N4 photonic crystal waveguide by incorporating air holes. The structure is developed for generating optical frequency combs and demultiplexing them simultaneously.
RESULTS IN PHYSICS
(2023)
Article
Mathematics
Milica Petkovic, Goran T. T. Dordevic, Jaroslaw Makal, Zvezdan Marjanovic, Gradimir V. V. Milovanovic
Summary: In this paper, an analytical framework is developed for the design and analysis of fronthaul/backhaul links in new generation mobile networks using free-space optical technology. The average symbol error probability of a coherent FSO system is analyzed considering receiver hardware imperfections and the influence of pointing errors and atmospheric turbulence. The results show that imperfect phase error compensation has a more critical impact on the SEP under weaker turbulence conditions and higher order modulation formats. The presented analytical tools can be used to estimate the tolerable value of phase noise standard deviation for a given SEP, which is an important parameter in designing the phase-locked loop filter in the receiver.
Article
Optics
Kuisheng Feng, Na Li, Guodong Wang, Jin Xiao, Wei Jiang
Summary: A photonic approach for generating multiform microwave FSK signals is proposed and demonstrated in this study. By properly biasing the modulators, fixed double relationship or flexibly tunable subcarrier frequencies can be achieved, along with high frequency multiplication. Additionally, a photonic-optimized coherent demodulation structure is designed to recover binary coding data effectively and avoid electronic bottlenecks.
Review
Chemistry, Multidisciplinary
Zhihao Liu, Jun Liu, Peng Yin, Yanqi Ge, Omar A. Al-Hartomy, Ahmed Al-Ghamdi, Swelm Wageh, Yuxuan Tang, Han Zhang
Summary: In recent years, there has been significant focus on the investigation of single-element 2D materials, particularly the group IV and group V elements. These materials, known as 2D Xenes, exhibit diverse optical and optoelectronic properties and can be easily integrated with other optical platforms. They have shown promising applications in various photonic devices and offer great potential for further development.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Engineering, Electrical & Electronic
Asghar Askarian, Fariborz Parandin
Summary: In this paper, all optical OR, AND, NOR and NAND gates based on linear photonic crystals (LPhCs) are designed and simulated using the plane wave expansion (PWE) and finite difference time domain (FDTD) methods. The proposed all optical gates (AOGATEs) are composed of a 15 x 23 matrix of silicon rods in an air substrate, with a cross-section of 114 square micrometers. The mechanism of the AOGATEs is based on phase shift keying (PSK) technique and beam interference effect. The simulation results demonstrate the minimum contrast ratios of 8.88 dB and 10.31 dB for all optical AND/NOR and OR/NAND logic gates, respectively. The minimum bit rates achieved are 3.34 Tb/s for AND/NOR gates and 5 Tb/s for OR/NAND gates.
Review
Optics
Jorge Parra, Irene Olivares, Antoine Brimont, Pablo Sanchis
Summary: The article discusses the current developments in achieving nonvolatile switching in silicon photonic waveguide devices, either through device engineering or hybrid integration with unique optical materials. Several approaches with high potential for evolving towards nonvolatile behavior with enhanced performance are being explored, although many development steps are still necessary to ensure reliable devices.
LASER & PHOTONICS REVIEWS
(2021)
Article
Engineering, Electrical & Electronic
Marcos Troncoso-Costas, Devika Dass, Colm Browning, Francisco J. Diaz-Otero, Chris G. H. Roeloffzen, Liam P. Barry
Summary: Flexible Pulse Amplitude Modulation (FlexPAM) is a technique that uses non-standard PAM formats to increase link capacity. This paper demonstrates FlexPAM as a scalable solution for future data center interconnects and introduces a symbol-to-bit mapping method to minimize the effect of intensity noise. Experimental results show that 20 GBaud transmission was successfully achieved using FlexPAM over 1 km of single-mode fiber without amplification.
IEEE PHOTONICS JOURNAL
(2022)
Article
Engineering, Electrical & Electronic
Devika Dass, Amol Delmade, Liam Barry, Chris G. H. Roeloffzen, Douwe Geuzebroek, Colm Browning
Summary: A tunable hybrid InP-Si3N4 dual laser module is used to develop a wavelength and frequency flexible optical fronthaul system for high-capacity wireless networks. The module demonstrates the flexible delivery of 5G and WiGig signals, showing excellent performance.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2022)
Article
Engineering, Electrical & Electronic
Ankit Sharma, Aleksandra Maria Kaszubowska-Anandarajah, Mohab Nabil Hammad, Michael Wallace, Jules Braddell, Frank Smyth, Prince M. Anandarajah
Summary: We have demonstrated a novel directly modulated transmitter based on a six-section photonic integrated circuit. The device utilizes a unique master-slave configuration with a variable optical attenuator, allowing independent control of cavities and injection power. This device enables error-free transmission of a 10 Gb/s non-return-to-zero signal over 25 km and 50 km standard single mode fiber.
IEEE PHOTONICS JOURNAL
(2022)
Article
Engineering, Electrical & Electronic
Eyal Wohlgemuth, Yaron Yoffe, Ido Attia, Muhammad Imran, Prajwal Doddaballapura Lakshmijayasimha, Andrea Marotta, Pantea Nadimi Goki, Hamutal Shalom, Francesco Fresi, Cristian Antonelli, Antonio Mecozzi, Prince Anandarajah, Luca Poti, Dan Sadot
Summary: This paper introduces the concept of multi-homodyne coherent detection for stealth and secured optical communications, and demonstrates a high-speed transmission achieved in a deployed multi-core fiber network. The effects of chromatic dispersion on transmission quality are analyzed, and the use of multi-core fibers to mitigate this effect is proposed.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2023)
Article
Computer Science, Hardware & Architecture
Aleksandra Kaszubowska-Anandarajah, Syed Tajammul Ahmad, Chris G. H. Roeloffzen, Paulus W. L. van Dijk, Ankit Sharma, Manas Srivastava, Prajwal D. Lakshmijayasimha, M. Deseada Gutierrez Pascual, Frank Smyth, Jules Braddell, Prince M. Anandarajah
Summary: A reconfigurable photonic integrated transmitter, allowing dynamic resource allocation in the metro-access network, is proposed. It is composed of a multicarrier sliceable bandwidth variable transmitter (MC-SBVT) made of indium phosphide and a silicon-nitride-based optical cross-connect (OXC). The architecture provides full flexibility in data format/bandwidth choice, channel spacing, and wavelength assignment. The functional design and practical realization of the MC-SBVT and OXC, as well as preliminary characterization results, demonstrating device reconfigurability, are discussed.
JOURNAL OF OPTICAL COMMUNICATIONS AND NETWORKING
(2023)
Article
Chemistry, Analytical
Kevin Mc Gee, Prince Anandarajah, David Collins
Summary: This paper explores the development of chipless radio frequency identification (RFID) sensors, specifically focusing on their potential use as passive wireless structural health monitoring (SHM) sensor technology. The paper discusses the design and performance of novel strain and temperature sensors, as well as methods to enhance the multi-sensor support capabilities of this technology.
Article
Engineering, Electrical & Electronic
Haixuan Xu, Amol Delmade, Colm Browning, Ahmad Atieh, Yonglin Yu, Liam P. P. Barry
Summary: This paper presents a practical wavelength reuse bidirectional analog radio-over-fiber (A-RoF) system using a single distributed feedback (DFB) laser. Frequency interleaving and pre-emphasis techniques are employed to improve the spectral efficiency and mitigate interference. The system achieves an asymmetric transmission over 25 km fiber with an aggregate capacity of 20 Gb/s for downlink and 10 Gb/s for uplink using 64-QAM and 16-QAM modulated orthogonal frequency division multiplexing (f-OFDM) signals.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2023)
Article
Optics
Wenle Weng, Aleksandra Kaszubowska-Anandarajah, Prince M. Anandarajah, Andre N. Luiten
Summary: We combine a gain-switched laser comb with a continuous-wave translation laser within a periodically poled lithium niobate microresonator and demonstrate efficient and broadband sum-frequency conversion, spectrally translating the near-infrared comb to the visible domain.
Article
Engineering, Electrical & Electronic
Ankit Sharma, Aleksandra Maria Kaszubowska-Anandarajah, Michael Wallace, Gaurav Jain, Jules Braddell, Frank Smyth, Prince M. Anandarajah
Summary: In this paper, a novel multi-section directly modulated laser transmitter is presented for upstream operation in the application of TWDM architecture. The photonic integrated circuit (PIC) is fabricated using a regrowth-free process, allowing for simplified and fast manufacturing. The PIC employs a master-slave configuration with a variable optical attenuator (VOA) section and a semiconductor optical amplifier (SOA) at the output. Experimental results demonstrate the tunability of the PIC to four wavelength channels and error-free performance with 10 Gbps signal transmission over 25 km and 50 km fiber.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2023)
Article
Engineering, Electrical & Electronic
Eamonn P. Martin, Syed T. Ahmad, Satheesh Chandran, Alejandro Rosado, Albert A. Ruth, Prince M. Anandarajah
Summary: The application of two gain switched optical frequency combs (OFCs) in dual comb gas phase spectroscopy is demonstrated. The stability analysis of the wavelength and power of individual comb lines of the two OFCs reveals that they achieve a wavelength fluctuation of <2.5 pm and a peak power fluctuation of similar to 0.3 dB. The RF beat tone spectrum shows that the peak power standard deviation of an individual beat tone is as low as similar to 0.14 dB, with negligible frequency fluctuations. In a proof-of-principle experiment, the dual comb system is applied to the detection of hydrogen sulphide (H2S) with a detection sensitivity of (740 +/- 160) ppmv, demonstrating its excellent frequency and power stability. The potential integration of dual OFCs enables the development of compact and cost-efficient dual comb devices for detecting multiple trace gas species or isotopologues.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2023)
Article
Engineering, Electrical & Electronic
Prajwal D. Lakshmijayasimha, Aleksandra Kaszubowska-Anandarajah, Manas Srivastava, Eamonn P. Martin, Prince M. Anandarajah
Summary: We demonstrate two novel photonically integrable architectures of a wideband gain-switched optical frequency comb (OFC) through experimental methods. By injecting an optimized signal generated by a source OFC and a dual-stage active demultiplexer into a gain-switched Fabry-Perot (GS-FP) laser, we achieve correlation of multiple modes. This configuration allows us to generate two OFCs with expansion factors of 4 and 10, spanning over 337.5 GHz and 875 GHz, respectively. The expanded comb shows high spectral purity, low linewidth, low relative intensity noise, and a high degree of phase correlation between lines.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2023)
Article
Quantum Science & Technology
Sven Abend, Baptiste Allard, Aidan S. Arnold, Ticijana Ban, Liam Barry, Baptiste Battelier, Ahmad Bawamia, Quentin Beaufils, Simon Bernon, Andrea Bertoldi, Alexis Bonnin, Philippe Bouyer, Alexandre Bresson, Oliver S. Burrow, Benjamin Canuel, Bruno Desruelle, Giannis Drougakis, Rene Forsberg, Naceur Gaaloul, Alexandre Gauguet, Matthias Gersemann, Paul F. Griffin, Hendrik Heine, Victoria A. Henderson, Waldemar Herr, Simon Kanthak, Markus Krutzik, Maike D. Lachmann, Roland Lammegger, Werner Magnes, Gaetano Mileti, Morgan W. Mitchell, Sergio Mottini, Dimitris Papazoglou, Franck Pereira dos Santos, Achim Peters, Ernst Rasel, Erling Riis, Christian Schubert, Stephan Tobias Seidel, Guglielmo M. Tino, Mathias van den Bossche, Wolf von Klitzing, Andreas Wicht, Marcin Witkowski, Nassim Zahzam, Michal Zawada
Summary: Recent developments in quantum technology have led to the creation of a new generation of sensors that can measure inertial quantities with unprecedented sensitivity and accuracy. European laboratories have been at the forefront of this field, developing concepts and tools to operate these quantum sensors in relevant environments. The challenge now is to achieve a sufficiently high technology readiness level to provide off-the-shelf payload for future space missions.
AVS QUANTUM SCIENCE
(2023)
Article
Computer Science, Information Systems
Muyiwa Balogun, Stanislav Derevyanko, Liam Barry
Summary: The nonlinear frequency division multiplexing (NFDM) transmission scheme, known for its robustness against nonlinearity and dispersion, has attracted high interests in optical communications. This study introduces the use of Hermite Gaussian (HG) wave-carriers in a high-capacity dual polarization NFDM (DP-NFDM) transmission system, enhanced by a single parameter equalizer. The system achieves a record-high spectral efficiency of 12 bits/s/Hz.
Article
Computer Science, Information Systems
Sean P. O'duill, Liam P. Barry
Summary: This article reports a technique that utilizes RF quadrature demodulation to measure laser frequency modulation (FM) noise based on a delayed self-heterodyne setup. The measurement is self-referencing and allows for precise characterization of FM noise over a sufficiently long duration. The effectiveness of this technique is demonstrated through measurements on external cavity lasers and a fiber laser, with good agreement between the measured FM noise and the sum of individual FM noise.
