Patent · US Active

Multichannel fiber optic rotary joint (FORJ) having an achromatic metasurface

US9804335B2 · kind B2 · utility

0Cited by

7References

19Claims

0Family size

Assignee

SCHLEIFRING UND APPARATEBAU GMBH · DE

Inventor

Gregor Popp · Munich, DE

Key dates

Filing date	Dec 9, 2016
Grant date	Oct 31, 2017
Priority date	—
Expiry date	Dec 9, 2036

Classification

Technology area (CPC G)Physics
CPC primaryG02B27/30
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A Multichannel Fiber Optic Rotary Joint (FORJ) has a Dove prism as a derotating optical element, wherein the Dove prism has a multiwavelength achromatic metasurface coating on the input and output face. Such a Multichannel FORJ has the advantage that its transmission properties include consistently low attenuation over a rotation angle and a high-return loss over a broad wavelength range, e.g. the whole frequency band used for telecommunications. A method for fabricating the same.

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