Carrier and thermal dynamics of silicon photonic resonators at cryogenic temperatures.

@article{Pernice2011CarrierAT,
  title={Carrier and thermal dynamics of silicon photonic resonators at cryogenic temperatures.},
  author={Wolfram H. P. Pernice and Carsten Schuck and Menglu Li and Hong X. Tang},
  journal={Optics express},
  year={2011},
  volume={19 4},
  pages={
          3290-6
        }
}
  • Wolfram H. P. Pernice, Carsten Schuck, +1 author Hong X. Tang
  • Published in Optics express 2011
  • Physics, Medicine
  • We describe measurement results of silicon photonic circuits at cryogenic temperatures. The interplay between optically induced heating and free carrier dynamics in nano-photonic ring resonators is investigated at temperatures down to 1.8 K. We find that the life-time of free carriers generated by two-photon absorption in silicon waveguides is reduced from 1.9 ns at room temperature to less than 100 ps below 10K. At the same time the thermal relaxation time is significantly elongated. Our work… CONTINUE READING

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