Patent · US Active

Optical communication module of reduced size utilizing one birefringent crystal to separate light signals

US11366271B2 · kind B2 · utility

0Cited by
5References
8Claims
0Family size

Assignee

Inventor

Key dates

Filing dateDec 9, 2020
Grant dateJun 21, 2022
Priority date—
Expiry dateDec 31, 2040

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG02B6/4214
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

An optical communication module separating the input and output of light signals by birefringence includes first and second planar optical waveguides with a birefringent crystal connected to both. An optical fiber is adjacent to the second planar optical waveguide. An output beam from a transmitter passes through the first planar optical waveguide, the birefringent crystal, and the second planar optical waveguide in sequence, and enters into the optical fiber. An incoming beam from the optical fiber passes through the second planar optical waveguide, the birefringent crystal, and the first planar optical waveguide in sequence, and then falls onto a receiver.

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