Reconfigurable Photonics on a Glass Chip

  title={Reconfigurable Photonics on a Glass Chip},
  author={I. V. Dyakonov and Ivan Pogorelov and I. B. Bobrov and Alexander A. Kalinkin and Pavel Dyakonov and Stanislav A. Evlashin and Stanislav Straupe and Sergei Kulik},
  journal={Physical Review Applied},
Reconfigurability of integrated photonic chips plays a key role in current experiments in the area of linear-optical quantum computing. We demonstrate a reconfigurable multiport interferometer implemented as a femtosecond laser-written integrated photonic device. The device includes a femtosecond laser-written $4\times 4$ multiport interferometer equipped with 12 thermooptical phase shifters, making it a universal programmable linear-optical circuit. We achieve a record fast switching time for… 

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