Patent · US Expired

Optical collimator for monomode fibers; monomode fiber with integrated collimator and method for making same

US7155096B2 · kind B2 · utility

10Cited by

9References

9Claims

0Family size

Assignee

FRANCE TELECOM · FR

Inventors

Philippe Chanclou · Lannion, FR
Philippe Gravey · Lannion, FR
Monique Thual · Lannion, FR

Key dates

Filing date	Oct 12, 2001
Grant date	Dec 26, 2006
Priority date	—
Expiry date	Oct 12, 2021

Classification

Technology area (CPC G)Physics
CPC primaryG02B6/2551
WIPO fieldOptics
WIPO sectorInstruments

Abstract

An optical collimator for single mode fibers includes a fiber segment (S1) with mode expansion including an entry and an exit for a light beam. The entry of the fiber segment with mode expansion is on the side at which the core diameter is the smallest, and the exit is on the side at which the core diameter is the largest. The collimator further includes a fiber segment (S2) with expansion holding coupled to the exit, the core diameter of which is equal to or greater than the largest core diameter of the fiber segment with mode expansion, so that the diameter of the light beam guided for this segment is kept constant.

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