Large-FSR Thermally Tunable Double-Ring Filters for WDM Applications in Silicon Photonics

@article{Manganelli2017LargeFSRTT,
  title={Large-FSR Thermally Tunable Double-Ring Filters for WDM Applications in Silicon Photonics},
  author={Costanza Manganelli and P. Pintus and F. Gambini and Daivid Fowler and Maryse Fournier and S. Faralli and Christophe Kopp and Claudio J. Oton},
  journal={IEEE Photonics Journal},
  year={2017},
  volume={9},
  pages={1-10}
}
We present the design procedure and experimental results of thermally tunable double ring resonators for integrated wavelength division multiplexing applications. A detailed analytical model specific for double rings is described, and a modified racetrack geometry using Bezier bends is used to reduce bending loss. We demonstrate devices with a free-spectral-range up to 2.4 THz (19 nm) around 1550 nm and nonadjacent channel rejection higher than 35 dB. The experimental results of thermally… CONTINUE READING