Patent · US Active

Integrated optical coupler and fibre-optic system having such an integrated optical coupler

US9651380B2 · kind B2 · utility

0Cited by

4References

8Claims

0Family size

Assignee

NORTHROP GRUMMAN LITEF GMBH · DE

Inventors

Sven Voigt · Glückstadt, DE
Steffen Zimmermann · Teningen, DE

Key dates

Filing date	Jun 30, 2014
Grant date	May 16, 2017
Priority date	—
Expiry date	Jun 30, 2034

Classification

Technology area (CPC G)Physics
CPC primaryG02B6/4213
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

The invention relates to an integrated optical coupler (1) comprising a substrate (3), at least two planar waveguides (4), which are arranged on or in the substrate (3) and consist of a material having a virtually isotropic refractive index (anisotropy of the refractive index of less than 10−6), and al least three monomode fibers (8, 9, 10) coupled to the planar waveguides (4). One of the monomode fibers (8) is a polarization-maintaining fiber. A fiber optic system according to the invention comprises an integrated optical coupler (1) according to the invention, a light source (21) that is suitable for generating light beams, and a first pigtail fiber (22), which is connected at one end to the light source (21) and at the other end to the polarization-maintaining fiber (8) of the integrated optical coupler (1).

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