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A novel broadband and scalable RF switch matrix based on microwave photonics is proposed and the proof-of-concept experiments are carried out. The experiment results show that the proposed RF switch matrix is with a good linearity, link gain, port isolation and EVM performance.
A phase-stabilized RF transmission scheme is demonstrated with suppressed noise. A 2.48GHz signal has been transferred through a 60km optical fiber link, with stability of 8.1×10−14 at 1s and 1.1×10−16 at 2000s averaging time, respectively.
In this paper, we propose and demonstrate a phase-stabilized radio-frequency (RF) reference transmission scheme by actively stabilizing the optical path delay of the fiber link. The reference RF tone is round-trip transferred between the central station and the remote end to obtain the delay variation. The fast and small part of the delay fluctuation is cancelled by a piezoelectric fiber stretcher,...
A novel wideband radio frequency phase stabilized downlink transmission and optical domain down-conversion scheme is proposed. The achieved stability of the intermediate frequency is ∼1.8×10−12τ−1/2 after transferring through 30km optical fiber.
We propose a high-efficient photonic approach that can simultaneously down-convert, compress and invert the spectrum of multiband RF signal through coherently heterodyning the optic-carried multiband RF signal with a frequency carefully aligned optical frequency comb. A proof of concept experiment with dual band RF spectral manipulation is demonstrated to validate this proposal. Performance is also...
We propose and demonstrate a broadband phase compensation method for transfer radio frequency (RF) signal from remote antenna to center station through a radio-over-fiber (ROF) link. By exploiting fiber's chromatic dispersion, a calibration signal modulated on a computer-controlled tunable laser from the center is used for link-length compensation, a broadband frequency independent stabilized ROF...
We demonstrate for the first time 160Gbaud to 40Gbaud phase-preserving demultiplex of OTDM-DQPSK signals using a dual parallel Mach-Zehnder modulator(DPMZM) driven by only one electrical clock. Error-free operation is achieved with ∼0.6 dB power penalty.
We propose and experimentally demonstrate a novel photonic scheme to generate differential-phase amplitude-shift keying (DPASK) or circular quadrature amplitude modulation (QAM) signal at microwave/millimeter-wave band for Radio-over-Fiber applications. In our proposed scheme, the electronic driven circuits are greatly simplified by employing photonic vector modulation technique in which only an electro-optical...
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