Results 11 to 20 of about 8,913 (312)
Frontiers in Physics, 2023 In this paper, a high-precision bidirectional time-transfer system over a single fiber based on wavelength-division multiplexing and time-division multiplexing (SFWDM-TDM) is proposed, which combines the advantages of wavelength-division multiplexing and
Xinxing Guo +12 more
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Compact spatial multiplexers for mode division multiplexing
Optics Express, 2014 Spatial multiplexer (SMUX) for mode division multiplexing (MDM) has evolved from mode-selective excitation, multiple-spot and photonic-lantern based solutions in order to minimize both mode-dependent loss (MDL) and coupler insertion loss (CIL). This paper discusses the implementation of all the three solutions by compact components in a small footprint.
Chen, Haoshuo +3 more
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Photonics, 2023 To increase the optical interconnect transmission capacity, different multiplexing technologies, including wavelength division multiplexing (WDM), polarization division multiplexing (PolDM) and mode division multiplexing (MDM), can be utilized.
Tien-Wei Yu +6 more
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Mehran University Research Journal of Engineering and Technology, 2023 Fiber optic communications are inevitable to achieve higher data rates of modern telecom networks. After utilization of Wavelength division multiplexing, higher order modulations and polarization multiplexing, mode division multiplexing is a new ...
Abid Munir, Amjad Ali, Abdul Latif
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IEEE Photonics Journal, 2015 We propose cascaded mode-division-multiplexing and time-division-multiplexing passive optical network (MDM-TDM-PON) based on low mode-crosstalk few-mode fiber (FMF) and all-fiber mode multiplexer/demultiplexer (MUX/DEMUX), in which optical network units ...
Fang Ren +8 more
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Silicon Add-Drop Filter Based on Multimode Grating Assisted Couplers
IEEE Photonics Journal, 2016 We demonstrate the design, fabrication, and characterization of a two-mode silicon add-drop filter, which is based on multimode grating-assisted contra-directional couplers.
Huiye Qiu +7 more
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Gain Characteristics of Few-Mode EDFA With Different Pump
IEEE Photonics Journal, 2022 Few-mode erbium-doped fiber amplifier (FM-EDFA) is a key device to achieve power compensation in long-haul mode division multiplexing (MDM) optical system.
Wenxuan Xu +7 more
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Clock Recovery Challenges in DSP-Based Coherent Single-Mode and Multi-Mode Optical Systems
Future Internet, 2018 We present an analysis of clock recovery algorithms in both polarization division multiplexing systems and mode division multiplexing systems. The impact of inter-polarization time skew and polarization mode dispersion in single-mode fibers, as well as ...
Júlio César Medeiros Diniz +2 more
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Frequency-Domain Detection for Frequency-Division Multiplexing QEPAS
Sensors, 2022 To achieve multi-gas measurements of quartz-enhanced photoacoustic spectroscopy (QEPAS) sensors under a frequency-division multiplexing mode with a narrow modulation frequency interval, we report a frequency-domain detection method. A CH4 absorption line
Xiang Chen +6 more
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2D least-squares mode decomposition for mode division multiplexing
Optics Express, 2022 We investigate a fast and accurate technique for mode decomposition in multimode optical fibers. Initial decomposition task of near-field beam patterns is reformulated in terms of a system of linear equations, requires neither machine learning nor iterative routines.
Pavel S. Anisimov +2 more
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