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

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

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
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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 Division Multiplexing Free Space Optical Communication System Performance with Aperture Averaging in Atmospheric Turbulence and Various Weather Conditions

Engineering Innovations
Due to the serious challenge for mobile operators as a result of spectrum congestion in radio frequency spectrum, free space optical (FSO) communication has been considered a timeous alternative especially for future generation high capacity wireless ...
S. Magidi, T. Pondani
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

DOP Characterization of Mode Division Multiplexing Signals With Application to Differential Mode Gain Control for Few-Mode Erbium-Doped Fiber Amplifiers

Journal of Lightwave Technology
Degree of polarization (DOP) is often used to measure the polarization properties of single-mode signals and the classical entanglement of orbital angular momentum (OAM) modes or vector modes.
Xinrui Jiang, Baojian Wu, Peiying Dong, F. Wen, K. Qiu   +4 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

Data Center Mode Division Multiplexing at Net 1.6 Tb/s Per Wavelength w/o MIMO Processing

Journal of Lightwave Technology
Space division multiplexing (SDM) is a promising solution to increase the capacity of optical communications within data centers. We focus on mode division multiplexing (MDM) architectures with fibers supporting multiple modes.
Ghazaleh Adibifard, S. Pal, Nathalie Bacon, Sophie LaRochelle, L. Rusch   +4 more
semanticscholar   +1 more source