Results 161 to 170 of about 13,934 (209)

Side-tap modal channel monitor for mode division multiplexed (MDM) systems

Optical Fiber Communication Conference, 2012
We demonstrate a sidetap modal channel monitor based on a tilted Bragg grating, where different modes radiate at different angles. We qualitatively correlate the observed modal power partitioning with more accurate interferometer-based measurements.
Lu Yan, Roman A. Barankov, Paul Steinvurzel, Siddharth Ramachandran   +3 more
openaire   +2 more sources

Enhanced Stokes Space based mode division de-multiplexing for hybrid modulated MDM-QPSK&16QAM signals

2017 16th International Conference on Optical Communications and Networks (ICOCN), 2017
We propose an enhanced Stokes Space based mode division de-multiplexing algorithm by using S0 based layered fitting (SLF) method, which can realize QPSK&16QAM hybrid modulation format de-multiplexing in few mode transmissions. The effectiveness of this method is substantiated through numerical simulations under mode division multiplexed transmission ...
Lei Wang, Guanjun Gao, Aimei Fei, Cheng Xu, Yongjie Tian, Jie Zhang   +5 more
openaire   +2 more sources

A Compact Multi-Mode-Interferometer (MMI) Based 4 x 4 Mode-Division-Multiplexing (MDM) Mode Switch on Silicon Photonics Platform

Microoptics Conference
We demonstrate a 4×4 multi-mode-interferometer (MMI)-based mode-division-multiplexing (MDM) switch. Genetic-algorithm (GA) is used to obtain the optimum bias-condition of each phase-shifter in MMI-based switch.
Tun-Yao Hung, Chi‐Wai Chow
openalex   +2 more sources

Bridged Coupler and Oval Mode Converter Based Silicon Mode Division (De)Multiplexer and Terabit WDM-MDM System Demonstration

Journal of Lightwave Technology, 2018
We propose a novel structure of a mode (de)multiplexer that realizes an on-chip (de)multiplexing function in a two-step process consisting of a bridged coupler and an oval mode converter. According to the two-step principle, we design and fabricate a three-mode (TE0, TE2, and TE4) (de)multiplexer with the standard silicon-on-isolator (SOI) technology ...
Zeyu Chen, Yixiao Zhu, Xiaoke Ruan, Yan Li, Yanping Li, Fan Zhang   +5 more
openaire   +2 more sources

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Performance analysis of wavelength division multiplexing MDM-PON system using different advanced modulations

Journal of optical communications, 2021
Mode division multiplexing (MDM) is very competent next generation multiplexing technique and is becoming popular among researchers these days. In this research article, an integrated passive optical network (PON) using MDM and wavelength division ...
Jashanpreet Singh, Karamjit Kaur
semanticscholar   +1 more source

Mode Pilot-Tone (MPT)-Based High-Precision Crosstalk Monitoring for Mode-Division Multiplexing Systems

Journal of Lightwave Technology
Efficient and precise monitoring on mode-coupling-induced crosstalk (XT) is crucial for the operation of mode-division multiplexing (MDM) systems, particularly for optimizing digital signal processing (DSP) parameter configurations and maintaining stable
Tianfeng Zhao, Feng Wen, Bianxia Feng, Jinlong Wei, Junpeng Liang, Mingming Tan, Baojian Wu, Bo Xu, Kun Qiu   +8 more
semanticscholar   +1 more source

Enabling ROADM in mode division multiplexing networks with mode-selective switches

Journal of Optical Communications and Networking
Mode division multiplexing (MDM) enhances optical communication systems by introducing an additional multiplexing dimension. We designed and validated a reconfigurable optical add/drop multiplexer (ROADM) prototype using MDM as an optical subsystem ...
Sunami Sajjanam Morrison, Kaveh Rahbardar Mojaver, Seyed Mohammad Reza Safaee Ardestani, Zhaoqi Ma, Rebecca Rogers, Dusan Gostimirovic, O. Liboiron-Ladouceur   +6 more
semanticscholar   +1 more source

High-SNR OAM mode division multiplexing based on delta-sigma modulation using a power domain layer.

Optics Letters
Orbital angular momentum (OAM) mode-division multiplexing (MDM) systems exist with mode cross talk, which requires high signal-to-noise ratio (SNR) to improve transmission performance.
Sihan Wang, Xiaolong Pan, Ran Gao, Dong Guo, Huan Chang, Zhipei Li, Sitong Zhou, Cheng Du, Wei Yan, Fei Wang, Qi Zhang, Xiangjun Xin   +11 more
semanticscholar   +1 more source

Generation and characterization of tunable skyrmions in mode-division-multiplexing fibers.

Optics Letters
Mode-division-multiplexing (MDM) technology in few-mode optical fibers offers new opportunities for advancing topological optics. In this Letter, we report, for the first time to our knowledge, the generation of tunable skyrmions in an MDM fiber. We also
Zekun Shi, Ziyang Zhang, Letian Gu, Xin Wang, Pan Wang, Zhi Wang, Yange Liu   +6 more
semanticscholar   +1 more source

Efficient Frequency-Domain Block Equalization for Mode-Division Multiplexing Systems

Photonics
In this paper, an adaptive frequency-domain block equalizer (FDBE) implementing the adaptive moment estimation (Adam) algorithm is proposed for mode-division multiplexing (MDM) optical fiber communication systems. By packing all frequency components into
Yifan Shen, Jianyong Zhang, Shuchao Mi, Guofang Fan, Muguang Wang   +4 more
semanticscholar   +1 more source