optical fiber transmission has been widely used in communications and metrology, wherein optical frequency transfer (OFT) and optical physical layer secure key distribution (OKD) have become research hotspots [1, 2]. ...
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optical fiber transmission has been widely used in communications and metrology, wherein optical frequency transfer (OFT) and optical physical layer secure key distribution (OKD) have become research hotspots [1, 2]. Moreover,OFT can perform a comparison between state-of-the-art optical atomic clocks and implement coherent optical phase transfer over long distances to support geodesy [1, 3].
The lightwave field possesses several dimensional properties,including amplitude,spectrum,phase,and *** measurements of lightwaves have diverse applications ranging from remote sensing to analytical ***,achieving high...
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The lightwave field possesses several dimensional properties,including amplitude,spectrum,phase,and *** measurements of lightwaves have diverse applications ranging from remote sensing to analytical ***,achieving high-resolution simultaneous multi-dimensional measurement of lightwaves remains *** this work,we demonstrate an all-fiber spectropolarimeter based on a speckle pattern obtained from the end of a multi-mode *** proposed system simultaneously achieves a spectral resolution of 100 pm and a polarization resolution of *** polarization measurement errors for three Stokes parameters are 3.37%,1.01%,and 0.84%,respectively,with a mean squared error of 5.3×10^(-5).This work provides novel potential for high-resolution and accurate multi-dimensional lightwave field measurements.
We propose a silicon polarization-diversity coherent receiver for wavelength-multiplexing transmission without using the large-footprint arrayed waveguide grating(AWG).We have integrated our proposed coherent receiver...
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We propose a silicon polarization-diversity coherent receiver for wavelength-multiplexing transmission without using the large-footprint arrayed waveguide grating(AWG).We have integrated our proposed coherent receiver on the silicon-on-insulator(SOI) platform for high-capacity *** the proposed coherent receiver,high-frequency photocurrent signals from other wavelengths are suppressed by electrical low-pass ***,the signal-signal beat interference(SSBI) generated from each wavelength is eliminated by the balanced *** two features lend to the proposed coherent receiver being free of the mm-scale *** have demonstrated our proposed coherent receiver to detect a 1.12-Tb/s wavelength-division-multiplexed and polarization-division-multiplexed 16-ary quadrature amplitude modulation(PDM-16-QAM) *** compact footprint of the silicon chip promises small-form-factor receivers for future ultra-high-capacity coherent communicationsystems that require a high integration level and low fabrication cost.
This paper proposes and successfully demonstrates a high-speed optical signal coupling (HS-OSC) of 2x40Gbaud PAM8 with precoder-shaped multi-level polar codes (PS-MLPC) in a gain-oriented multiple-input single-output ...
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We propose a hardware-efficient single-ended coherent receiver structure using two arbitrary output tributaries of a 3×3 coupler. We experimentally demonstrate 1.008-Tb/s line rate (820-Gb/s net rate) PS-64-QAM s...
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We overview the principle of hybrid digital-analog radio-over-fiber technique for high-fidelity and high spectral efficiency mobile fronthaul. The SNR scaling law is theoretically derived and compared with the existin...
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We experimentally demonstrate a dispersion-diverse receiver to mitigate the CD-induced power fading for IM-DD systems at C-band. The receiver can support 256.5 Gb/s line-rate PS-64-QAM signal transmission over 10-km S...
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We propose multi-task learning based NN equalization for nonlinearity compensation in coherent opticalsystem. Compared with conventional NN equalization, 30% complexity reduction is achieved in an 800-Gb/s PDM-16QAM ...
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We propose and experimentally demonstrate an efficient equalization-enhanced phase noise compensation scheme for long-haul coherent transmission. The distance is extended by 1780km and 470km for 788.4-Gb/s/λ and 968....
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We propose a fast and accurate estimation method of MDL-induced SNR penalty with non-uniform noise loading in SDM *** proposed approach substantially saves the time cost while maintaining an estimation error within 0....
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