Patent · US Active

Silicon optical phase shifter with a series of P—N junctions

US12386211B2 · kind B2 · utility

0Cited by
4References
17Claims
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Inventor

Key dates

Filing dateOct 20, 2022
Grant dateAug 12, 2025
Priority date—
Expiry dateMay 27, 2043

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG02F2203/50
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

An apparatus includes a silicon (Si) optical phase shifter. In an embodiment, the optical phase shifter comprises a planar optical waveguide having a silicon optical core, and a pair of biasing electrodes located along opposite sides of a segment of the silicon optical core. The segment of the silicon optical core comprises a series of p-n junctions. The series extends in a direction transverse to an optical propagation direction in a segment of the planar optical waveguide including the segment of the silicon optical core. At least two of the p-n junctions are configured to be reverse biased by applying a voltage across the biasing electrodes.

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