公开(公告)号：US20060067698A1

公开(公告)日：2006-03-30

申请号：US10948330

申请日：2004-09-24

Applicant: Yi-Jen Chan ,  Fan-Hsiu Huang ,  Hsin-Pin Wang ,  Dong-Min Lin ,  Mu-Tao Chu ,  Shin-Ge Lee ,  Shun-Tien Lee

Inventor： Yi-Jen Chan ,  Fan-Hsiu Huang ,  Hsin-Pin Wang ,  Dong-Min Lin ,  Mu-Tao Chu ,  Shin-Ge Lee ,  Shun-Tien Lee

IPC: H04B10/12

CPC classification number: H04B10/25751

Abstract: The present invention is an optical fiber system and method for carrying both CATV and Ethernet signals. The digital signals are translated into higher band by a direct up/down conversion so that analog signals and digital signals are treated as different frequency bands of electrical signals. Then, all the signals are mixed/divided by a power combiner/divider. And then, by using optoelectronic devices, the signals are processed with optoelectronic conversion. The converted optical signals are transmitted in a fiber or a related optical channel having low channel loss yet high capacity. To sum up, the present invention can transmit digital signals together with analog signals in a single wavelength to save the cost of an optical signal system and to provide a convenience on rearranging the system.