Patent · US Active

Waveguide mode expander having non-crystalline silicon features

US11409039B2 · kind B2 · utility

0Cited by
129References
20Claims
0Family size

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Inventors

Key dates

Filing dateAug 5, 2020
Grant dateAug 9, 2022
Priority date—
Expiry dateAug 5, 2040

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG02B2006/12152
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

A waveguide mode expander couples a smaller optical mode in a semiconductor waveguide to a larger optical mode in an optical fiber. The waveguide mode expander comprises a shoulder and a ridge. In some embodiments, the ridge of the waveguide mode expander has a plurality of stages, the plurality of stages having different widths at a given cross section.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.