Nonreciprocal transmission in a nonlinear photonic-crystal Fano structure with broken symmetry. Yu, Y., Chen, Y., Hu, H., Xue, W., Yvind, K., & Mork, J. Laser & Photonics Reviews, 9(2):241-247, 3, 2015. Paper Website abstract bibtex Nanostructures that feature nonreciprocal light trans-mission are highly desirable building blocks for realizing pho-tonic integrated circuits. Here, a simple and ultracompact photonic-crystal structure, where a waveguide is coupled to a single nanocavity, is proposed and experimentally demon-strated, showing very efficient optical diode functionality. The key novelty of the structure is the use of cavity-enhanced mate-rial nonlinearities in combination with spatial symmetry breaking and a Fano resonance to realize nonreciprocal propagation ef-fects at ultralow power and with good wavelength tunability. The nonlinearity of the device relies on ultrafast carrier dynamics, rather than the thermal effects usually considered, allowing the demonstration of nonreciprocal operation at a bit-rate of 10 Gbit s −1 with a low energy consumption of 4.5 fJ bit −1 .
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title = {Nonreciprocal transmission in a nonlinear photonic-crystal Fano structure with broken symmetry},
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year = {2015},
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abstract = {Nanostructures that feature nonreciprocal light trans-mission are highly desirable building blocks for realizing pho-tonic integrated circuits. Here, a simple and ultracompact photonic-crystal structure, where a waveguide is coupled to a single nanocavity, is proposed and experimentally demon-strated, showing very efficient optical diode functionality. The key novelty of the structure is the use of cavity-enhanced mate-rial nonlinearities in combination with spatial symmetry breaking and a Fano resonance to realize nonreciprocal propagation ef-fects at ultralow power and with good wavelength tunability. The nonlinearity of the device relies on ultrafast carrier dynamics, rather than the thermal effects usually considered, allowing the demonstration of nonreciprocal operation at a bit-rate of 10 Gbit s −1 with a low energy consumption of 4.5 fJ bit −1 .},
bibtype = {article},
author = {Yu, Yi and Chen, Yaohui and Hu, Hao and Xue, Weiqi and Yvind, Kresten and Mork, Jesper},
journal = {Laser & Photonics Reviews},
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