Photonic RF Phase-Encoded Signal Generation With a Microcomb Source

By Xingyuan Xu, Mengxi Tan, Jiang Wu, Andreas Boes, Bill Corcoran, Thach G. Nguyen, Sai T. Chu, Brent E. Little, Roberto Morandotti, Arnan Mitchell and 1 more. Journal of Lightwave Technology, 2020

164 citations recorded by the source corpus.

We demonstrate photonic RF phase encoding based on an integrated micro-comb source. By assembling single-cycle Gaussian pulse replicas using a transversal filtering structure, phase encoded waveforms can be generated by programming the weights of the wavelength channels. This approach eliminates the need for RF signal generators for RF carrier generation or arbitrary waveform generators for phase encoded signal generation. A large number of wavelengths—up to 60—were provided by the microcomb source, yielding a high pulse compression ratio of 30. Reconfigurable phase encoding rates ranging from 2 to 6 Gb/s were achieved by adjusting the length of each phase code. This article demonstrates the significant potentials of this microcomb-based approach to achieve high-speed RF photonic phase encoding with low cost and footprint.

Subfields: Atomic and Molecular Physics, and Optics, Electrical and Electronic Engineering

View Paper: https://www.semanticscholar.org/paper/da88fd4648eb4dd49a59f133538d3bfff92f8d66

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In Atomic and Molecular Physics, and Optics

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Citations in the corpus

Microwave Photonic Radars (2020, methodology): “Based on this operation, Fourier transform [106]–[108], pulse coding [109], [110],”
Broadband Photonic RF Channelizer With 92 Channels Based on a Soliton Crystal Microcomb (2020, background): “they offer a large number of coherent wavelength channels in a mm2-size footprint, and have enabled a wide range of RF devices and applications [41], [42], such as RF true time delays [43], [44], transversal signal processors [45]–[50], frequency conversion [51], phase-encoded signal generators [52]”
Photonic RF Arbitrary Waveform Generator Based on a Soliton Crystal Micro-Comb Source (2020, methodology): “mented a more accurate comb shaping approach to that used in previous work [33], which also better compensated the non-flat spectral output of the soliton crystal micro-comb.”
Optical data transmission at 44Tb/s and 10 bits/s/Hz over the C-band with standard fibre and a single micro-comb source (2020, background): “These qualities have made soliton crystals highly successful as a basis for microwave and RF signal processing [ 35 - 50].”