Patent · US Active

Single mode and multi-mode waveguide crossings

US11822126B2 · kind B2 · utility

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1References
20Claims
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Assignee

Inventors

Key dates

Filing dateMar 8, 2022
Grant dateNov 21, 2023
Priority date—
Expiry dateMar 8, 2042

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG02B2006/12147
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

Embodiments herein describe a waveguide crossing that permits at least two optical signals to cross in two different directions. For example, one optical signal can propagate from left to right through the center of the waveguide crossing at the same time a second optical signal propagates up and down through the center of the crossing. In one embodiment, a circular disc is disposed at the center of the waveguide crossing through which the two (or more) optical signals pass. The shape of the circular disc can provide low insertion loss as the respective optical signals propagate between respective pairs of waveguides, as well as minimize cross talk between the two optical signals.

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