Main > HPArticle > Wavelength-Mode Pulse Interleaver on the Silicon Photonics Platform
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  • Manuscript Accepted: Nov. 8, 2019

    Online Published: Nov. 25, 2019

Chinese Optics Letters, 2020, Vol. 18, Issue 3, pp.

Wavelength-Mode Pulse Interleaver on the Silicon Photonics Platform

Wang Xinyi, Zhou Gangqiang, Jin Zhengtao, Lu Liangjun, Wu Guiling, zhou linjie, Chen Jianping

Author Affiliations

  • Shanghai Jiao Tong University
  • Shanghai Jiao Tong Univ.
  • 上海交通大学区域光纤通信网与新型光通信系统国家重点实验室
  • Shanghai Jiao Tong Univ.
  • Shanghai Jiao Tong University


We report an 8-channel wavelength-mode optical pulse interleaver on a silicon photonic chip. Wavelength and mode division multiplexing techniques are combined to increase the repetition rate of the pulses without adding the complexity of a single dimension. The interleaver uses a cascaded Mach-Zehnder interferometer architecture as a wavelength-division (de)multiplexer, an asymmetric directional coupler as a mode (de)multiplexer, and various lengths of silicon waveguides as delay lines. A pulse sequence with a time interval of 125 ps is implemented with the repetition rate being eight times that of the initial one. The demonstrated wavelength-mode multiplexing approach opens a new route for the generation of high-speed optical pulses.