APL Photonics (Jul 2022)

Thin-film lithium niobate dual-polarization IQ modulator on a silicon substrate for single-carrier 1.6 Tb/s transmission

  • Xuanhao Wang,
  • Chenglin Shang,
  • An Pan,
  • Xingran Cheng,
  • Tao Gui,
  • Shuai Yuan,
  • Chengcheng Gui,
  • Keshuang Zheng,
  • Peijie Zhang,
  • Xiaolu Song,
  • Yanbo Li,
  • Liangchuan Li,
  • Cheng Zeng,
  • Jinsong Xia

DOI
https://doi.org/10.1063/5.0097296
Journal volume & issue
Vol. 7, no. 7
pp. 076101 – 076101-5

Abstract

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We successfully demonstrate a monolithic integrated dual-polarization in-phase/quadrature (IQ) modulator based on thin-film lithium niobate platform with a silicon substrate, which consists of IQ modulators, spot-size converters, and a polarization rotator combiner. When coupled with polarization maintaining fibers, the measured insertion loss of the modulator is 12 dB. In addition, we experimentally achieve a single-carrier 1.6 Tb/s net bitrate transmission.