公开(公告)号：US11201676B2

公开(公告)日：2021-12-14

申请号：US16087870

申请日：2017-04-13

Applicant: Xieon Networks S.a.r.l.

Inventor： Lutz Rapp ,  Nelson Costa

IPC: H04B10/291 ,  H01S3/067 ,  H01S3/094 ,  H01S3/16 ,  H01S3/23

Abstract: The invention discloses a method of amplifying an optical signal, in particular a data signal, transmitted from a first location (A) to a second location (B) via a first transmission link (10a), wherein said optical signal is amplified by means of a transmitter side remote optically pumped amplifiers (ROPA) (18) comprising a gain medium (24), wherein the gain medium (24) of said transmitter side ROPA (18) is pumped by means of transmitter side pump power (20) provided from said first location (A), characterized in that at least a part of said transmitter side pump power (20) is provided by means of light supplied from said first location (A) to said transmitter side ROPA (18) via a portion of a second transmission link (10b) provided for transmitting optical signals from said second location (B) to said first location (A).