Widely Wavelength-Tunable Mode Converter Based on Polymer Waveguide Grating

Yu Yang, Kaixin Chen, Wei Jin, Kin Seng Chiang

Research output: Journal article publicationJournal articleAcademic researchpeer-review

41 Citations (Scopus)


We design and fabricate a corrugated grating on a polymer waveguide for the realization of the conversion between the fundamental mode and the higher order mode. The transmission characteristics of the device are insensitive to the polarization state of the input light. Our typical fabricated device shows a mode conversion efficiency higher than 99% over a bandwidth of 4 nm and a temperature sensitivity of 3.5 nm/°C, which allows the operation wavelength of the device to be tuned over the C+L band with a temperature control <30°C. This mode converter could be integrated with other waveguide devices to realize more sophisticated functions for mode-division-multiplexing systems.
Original languageEnglish
Article number7131490
Pages (from-to)1985-1988
Number of pages4
JournalIEEE Photonics Technology Letters
Issue number18
Publication statusPublished - 15 Sept 2015
Externally publishedYes


  • Grating
  • mode converter
  • mode-divisionmultiplexing
  • optical waveguide
  • polymer waveguide

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering


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