Patent · US Expired

Fiber optic amplifier

US5195149A · kind A · utility

8Cited by

5References

9Claims

0Family size

Assignee

Alcatel N.V. · NL

Inventors

Thomas Pfeiffer · Kumhausen, DE
Rolf Rossberg · Schwieberdingen, DE
Henning Bulow · Kornwestheim, DE

Key dates

Filing date	Feb 13, 1992
Grant date	Mar 16, 1993
Priority date	—
Expiry date	Feb 13, 2012

Classification

Technology area (CPC H)Electricity
CPC primaryH01S3/094003
WIPO fieldOptics
WIPO sectorInstruments

Abstract

To increase the pump efficiency in a fiber-optic amplifier, the pump coupler (2) is fabricated from a fiber whose mode field diameter for the pump light is adapted to the mode field diameter of the active length of fiber (7). In an alternative solution, the arm of the pump coupler (2) coupled to the pump source (1) on the one hand and connected to the active length of fiber (7) on the other hand consists of a fiber adapted to the mode field diameter of the active length of fiber (7), and the arm of the pump coupler (2) serving as a connection to the incoming transmission line (8) consists of a fiber corresponding to the optical waveguide of the transmission line (8).

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