High-order coherent communications using mode-locked dark-pulse Kerr combs from microresonators
Artikel i vetenskaplig tidskrift, 2018
Microresonator frequency combs harness the nonlinear Kerr effect in an integrated optical cavity to generate a multitude of phase-locked frequency lines. The line spacing can reach values in the order of 100 GHz, making it an attractive multi-wavelength light source for applications in fiber-optic communications. Depending on the dispersion of the microresonator, different physical dynamics have been observed. A recently discovered comb state corresponds to the formation of mode-locked dark pulses in a normal-dispersion microcavity. Such dark-pulse combs are particularly compelling for advanced coherent communications since they display unusually high power-conversion efficiency. Here, we report the first coherent-transmission experiments using 64-quadrature amplitude modulation encoded onto the frequency lines of a dark-pulse comb. The high conversion efficiency of the comb enables transmitted optical signal-to-noise ratios above 33 dB, while maintaining a laser pump power level compatible with state-of-the-art hybrid silicon lasers.
Nonlinear optics
Fibre optics and optical communications
Frequency combs
Microresonators
Författare
Attila Fülöp
Chalmers, Mikroteknologi och nanovetenskap, Fotonik
Mikael Mazur
Chalmers, Mikroteknologi och nanovetenskap, Fotonik
Abel Lorences Riesgo
Chalmers, Mikroteknologi och nanovetenskap, Fotonik
Instituto de Telecomunicações
Òskar Bjarki Helgason
Chalmers, Mikroteknologi och nanovetenskap, Fotonik
Pei-Hsun Wang
Purdue University
Yi Xuan
Purdue University
Dan. E. Leaird
Purdue University
Minghao Qi
Purdue University
Peter Andrekson
Chalmers, Mikroteknologi och nanovetenskap, Fotonik
Andrew M Weiner
Purdue University
Victor Torres Company
Chalmers, Mikroteknologi och nanovetenskap, Fotonik
Nature Communications
2041-1723 (ISSN)
Vol. 9 1 1598Styrkeområden
Informations- och kommunikationsteknik
Nanovetenskap och nanoteknik (SO 2010-2017, EI 2018-)
Ämneskategorier
Telekommunikation
Atom- och molekylfysik och optik
Nanoteknik
DOI
10.1038/s41467-018-04046-6