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The evaluation of the accumulated contamination on insulators is an important problem for the timely cleaning up of insulators in recent years. For the absence of an effective contamination sensor, the flashover problem has not been effectively resolved yet. In this paper, a new equivalent salt deposit density (ESDD) optical fiber sensor for transmission lines is designed and deployed, which consists...
We compare the transmission performance of various bandwidth-efficient LDPC coding schemes. Equipped with 4 dB improvement in OSNR sensitivity, we demonstrate 1 Tb/s CO-OFDM over 1600 km SSMF transmission at spectral efficiency of 3.2 bit/s/Hz.
This study investigates an ultracompact, and simple, reflective air-gap fiber Fabry-Perot interferometer (RAGFFPI) which is based on a polymer filled hollow core fiber endface. Temperature sensitivity of +8.226nm/°C is achieved by the proposed RAGFFPI.
A novel scheme to generate, transmit and receive an optical OFDM-CPM signal in the architecture for seamless integration of ROF system with 4 × 2.5Gb/s WDM-PON is proposed and experimentally validated.
We propose algorithm to compensate frequency offset in optical coherent MSK system with little computation requirement. Simulations are performed to demonstrate the algorithm and its performance is excellent.
We propose a single-side band (SSB) Radio-over-Fiber (RoF) system based on OFDM-MSK modulation. In-phase/quadrature-phase (IQ) imbalance effect can significantly degrade the system performance. In order to obtain a better system performance, at the transmitter, the phase departure tolerance should be within 1 degree and the amplitude departure tolerance within 5% in the electrical domain, while in...
In this paper, we propose and demonstrate a novel 4-bit/symbol optical data format based on modulating dark return-to-zero (DRZ), differential quadrature phase-shift keying (DQPSK) and polarization-shift-keying (PoISK) for 100Gbit/s transmission system applications, and the transmission performance is investigated.
We experimentally demonstrate all-optical packet compression for a RZ payload up to 40 Gb/s and a label at 155 Mb/s, based on a recirculating buffer with one single optical crosspoint switch. The packet can be flexibly switched, dropped, time slot interchanged up to 9 time-slots and compressed up to 4 packets in one time slot. Back to back BER performance of the 4 times compressed packet is measured...
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