We propose a frequency domain reciprocal-distortion phase noise compensation scheme for DAS. Under the compensation, DAS with 50-km fiber and 100 kHz linewidth ITLA realizes the same performance as using narrow linewi...
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Serving as one of important sources of terahertz, the output and efficiency is limited by the size of devices and 'unemployed' electrons of the beam. To achieve higher electron efficiency and output power, the...
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We experimentally demonstrated line rate 300-Gb/s PAM4 and 400-Gb/s probabilistically shaped (PS)-PAM16 transmission using packaged thin-film LiNbO3 modulators with only 550-mVpp CMOS-class driving voltage requiring n...
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The bound state in the continuum (BIC) is widely used in optical field confinement because of its potential in radiation suppression, providing an energy confinement method different from traditional microcavities. Ho...
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By employing an auxiliary interferometer together with a two-step compensation algorithm, phase noise compensation is performed in a long range distributed acoustic sensor to mitigate impact of the phase noise on cohe...
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A low-modal-crosstalk 4-LP-mode demultiplexer with orthogonal combiner for degenerate mode reception is designed and fabricated by side-polishing processing, based on which DSP-free IM/DD MDM-WDM transmission over 20-...
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Differential-driven thin-film lithium niobate microring modulator is demonstrated. Two segments of electrode are employed to provide reversed electric field. The fabricated device features a tunability of 1.67 pm/V, s...
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We propose and experimentally demonstrate an inter-subcarrier crosstalk cancellation algorithm for fasterthan-Nyquist transmission. At 20% HD-FEC threshold, the achievable faster-than-Nyquist rate improves from 0.875 ...
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ISBN:
(数字)9798350367652
ISBN:
(纸本)9798350367669
We propose and experimentally demonstrate an inter-subcarrier crosstalk cancellation algorithm for fasterthan-Nyquist transmission. At 20% HD-FEC threshold, the achievable faster-than-Nyquist rate improves from 0.875 to 0.8 for 16-QAM and from 0.75 to 0.6 for QPSK.
We report a frequency shifting scheme for on-chip optical frequency transfer with low external circuit requirements. Serrodyne modulation method is used to achieve frequency shifting with high carrier and sideband sup...
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