Article
Optics
Hailong Zhou, Yilun Wang, Xiaoyan Gao, Dingshan Gao, Jianji Dong, Dongmei Huang, Feng Li, Ping-kong Alexander Wai, Xinliang Zhang
Summary: Metasurfaces made of subwavelength nanostructures can interact with light and manipulate its characteristics effectively. An ultradensely integrated multidimensional optical system based on inverse-designed dielectric metasurface network is presented, showcasing the potential to increase system capacity through mode-division multiplexing and coherent optical communication technologies.
LASER & PHOTONICS REVIEWS
(2022)
Article
Engineering, Electrical & Electronic
Ryota Tanomura, Rui Tang, Go Soma, Shota Ishimura, Takuo Tanemura, Yoshiaki Nakano
Summary: This article introduces a 6-port dual-polarization (DP) optical unitary processor (OUP) with polarization-splitter-rotators, implemented on a compact silicon photonic chip based on the multi-plane light conversion (MPLC) concept. It demonstrates all-optical MIMO demultiplexing of a 300-Gbps 3-mode DP quadrature phase-shift-keying (QPSK) signal at 1540, 1550, and 1560-nm wavelengths with an energy consumption of approximately 1.5 pJ/bit. All-optical MIMO is transparent to signal format and the energy cost decreases with increasing baudrate, making it an attractive approach for reducing power consumption in future ultra-high-capacity MDM systems.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2023)
Article
Nanoscience & Nanotechnology
Hongnan Xu, Chaoyue Liu, Daoxin Dai, Yaocheng Shi
Summary: By studying direct-access MDMS, a scalable multi-mode network within the chip is achieved. High-performance direct-access MDMS is realized through efficient mode exchangers and mode multiplexers. The novel direct-access scheme can also simultaneously utilize wavelength and mode carriers, enhancing the link capacity.
Article
Engineering, Electrical & Electronic
Weifeng Jiang, Shuangye Xu
Summary: The experimental demonstration of mode-splitting through metamaterial engineering of bridged subwavelength gratings (BSWGs) shows promising results for optical communications and interconnects. The designed device, fabricated using CMOS-compatible processes, exhibits low insertion losses and mode crosstalks, making it a potential candidate for mode manipulation in MDM systems.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2021)
Article
Chemistry, Analytical
Tun-Yao Hung, Guan-Hong Chen, Yuan-Zeng Lin, Chi-Wai Chow, Yin-He Jian, Pin-Cheng Kuo, Ching-Wei Peng, Jui-Feng Tsai, Yang Liu, Chien-Hung Yeh
Summary: Silicon photonics (SiPh) is a promising technology for increasing interconnect speed and capacity while decreasing power consumption. In this work, a wideband and channel switchable mode division multiplexing (MDM) power divider is proposed and demonstrated, supporting single, dual, and triple modes. The power divider successfully switches and divides power for 48 WDM wavelength channels carrying OFDM data, achieving an aggregated capacity of 7.682 Tbit/s.
Article
Optics
Ruihuan Zhang, Xingfeng Li, Yu He, Gang Chen, Liangming Xiong, Haoshuo Chen, Nicolas K. Fontaine, Yong Zhang, Weiqiang Xie, Yikai Su
Summary: This article proposes a multimode coupling solution based on a rectangular core few-mode fiber and an integrated multimode coupler to achieve high bandwidth-density optical interconnects. Through corresponding experiments, a bandwidth density of up to 19.4 Tb s mm -1 is achieved at the chip facet, with the DSP power consumption controlled below 6% of a conventional system.
LASER & PHOTONICS REVIEWS
(2023)
Article
Engineering, Electrical & Electronic
Chaoran Huang, Dongliang Wang, Weipeng Zhang, Benshan Wang, Alexander N. Tait, Thomas Ferreira de Lima, Bhavin J. Shastri, Paul R. Prucnal
Summary: This paper presents a silicon photonic system combining high-speed silicon photonic devices with a novel blind source separation algorithm to solve crosstalk issues in space-division multiplexing. The proposed system offers superior energy efficiency, cost efficiency, and reduced latency, while providing flexibility and interference tolerance.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2022)
Article
Optics
David Gonzalez-Andrade, Xavier Le Roux, Guy Aubin, Farah Amar, Thi Hao Nhi Nguyen, Paula Nuno Ruano, Thi Thuy Duong Dinh, Dorian Oser, Diego Perez-Galacho, Eric Cassan, Delphine Marris-Morini, Laurent Vivien, Carlos Alonso-Ramos
Summary: On-chip spatial and polarization multiplexing is proposed as an effective strategy to enhance the data transmission capacity of integrated optical transceivers. By manipulating the coupling between guided modes and free-propagating beams, spatial and polarization multiplexing with state-of-the-art performance is achieved. Two-polarization and three-mode multiplexed links are developed using standard silicon-on-insulator technology, demonstrating error-free operation at 40 Gbps with low power penalties. This approach can be applied to future implementation of more complex multiplexing schemes.
LASER & PHOTONICS REVIEWS
(2023)
Article
Optics
Yaotian Zhao, Jinlong Xiang, Yu He, Yuchen Yin, An He, Yong Zhang, Zongyin Yang, Xuhan Guo, Yikai Su
Summary: Wavelength-division multiplexing (WDM) technology provides considerable parallelism for large-capacity data communications, and the emerging metamaterial-assisted silicon photonics technology enables more compact on-chip light manipulation, resulting in wavelength (de)multiplexers with smaller footprints and broader functionalities.
LASER & PHOTONICS REVIEWS
(2022)
Article
Engineering, Electrical & Electronic
Yuxin Ding, Jianshe Li, Shuguang Li, Yu Qin, Zelin Zhang, Xiaokai Wang, Ying Guo, Xiaojian Meng, Huijing Du
Summary: We propose an elliptical-core mode selective photonic lantern (EC-MSPL) that is suitable for mode division multiplexing (MDM) systems without multiple-input multiple-output (MIMO) capability. By optimizing the taper related parameters in a two-stage approach, we obtain a small package taper region that satisfies the adiabatic condition, enabling a shorter taper length without affecting the performance of the photonic lantern (PL). Simulations show that both step-index and graded-index EC-MSPLs can achieve low-loss mode conversion and crosstalk below -15.6 dB at a wavelength of 1550 nm, with coupling efficiencies above 85% and 71% for the two PL modes in the S+C+L bands.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2023)
Article
Multidisciplinary Sciences
Jun Chen Ke, Xiangyu Chen, Wankai Tang, Ming Zheng Chen, Lei Zhang, Li Wang, Jun Yan Dai, Jin Yang, Jun Wei Zhang, Lijie Wu, Qiang Cheng, Shi Jin, Tie Jun Cui
Summary: A new-architecture space-frequency-polarization-division multiplexed wireless communication system is proposed using an anisotropic space-time-coding digital metasurface, which can improve the channel capacity and space utilization.
NATIONAL SCIENCE REVIEW
(2022)
Article
Nanoscience & Nanotechnology
Jaewon Oh, Kangmei Li, Jun Yang, Wei Ting Chen, Ming-Jun Li, Paulo Dainese, Federico Capasso
Summary: This study introduces a mode-division multiplexer and demultiplexer design based on a metasurface cavity, which can perform mode conversion and coupling to fibers on a single surface without the need for additional optics. The converted modes have high fidelity due to the optimized phase profile of the metasurface.
Article
Nanoscience & Nanotechnology
Haoqian Song, Runzhou Zhang, Nanzhe Hu, Huibin Zhou, Xinzhou Su, Hao Song, Kaiheng Zou, Kai Pang, Cong Liu, Daeyoung Park, Brittany Lynn, Greg Gbur, Aristide Dogariu, Richard J. Watkins, Jerome K. Miller, Eric Johnson, Moshe Tur, Alan E. Willner
Summary: The study experimentally investigated the effects of dynamic aerosols, dynamic curvature, as well as their comprehensive impact on a single OAM beam. It was found that the power coupling ratio of the OAM beam increased under different factors, with dynamic air and water interface causing wavefront distortion, beam wandering, scattering, and absorption.
Review
Optics
Svetlana Nikolaevna Khonina, Nikolay Lvovich Kazanskiy, Muhammad Ali Butt, Sergei Vladimirovich Karpeev
Summary: This review presents an attention-grabbing and up-to-date overview of major multiplexing techniques, including wavelength division multiplexing, polarization division multiplexing, space division multiplexing, mode division multiplexing, and orbital angular momentum multiplexing. It also discusses hybrid multiplexing methods and techniques. This unique review paper highlights the most prominent and recent progress in multiplexing techniques in one place.
OPTO-ELECTRONIC ADVANCES
(2022)
Article
Optics
Jinsong Zhang, Xueyang Li, Yixiang Hu, Md Samiul Alam, David V. Plant
Summary: This paper proposes a spectrally efficient silicon photonics phase-diverse direct-detection receiver based on asymmetric self-coherent detection. The receiver utilizes an optimized integrated silicon racetrack resonator to accurately recover complex double-sideband signals, allowing for multi-channel transmission. Experimental results demonstrate record-breaking transmission rates at different parameter configurations.
LASER & PHOTONICS REVIEWS
(2023)
