The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 30, 2014
Filed:
Dec. 30, 2010
Jidong Xu, Shenzhen, CN;
Dezhi Zhang, Shenzhen, CN;
Jidong Xu, Shenzhen, CN;
Dezhi Zhang, Shenzhen, CN;
ZTE Corporation, Shenzhen, Guangdong Province, CN;
Abstract
The present invention provides a long reach optical amplification device, a passive optical network and an optical signal transmission method in the communication field. The long reach optical amplification device comprises: a first optical diplexer, configured to transmit one or multiple downlink optical signal(s) from a first segment of Feeder fiber to a downlink optical amplifier; and to couple one or multiple uplink optical signal(s) amplified by a uplink optical amplifier to the first segment of Feeder fiber; the downlink optical amplifier, configured to amplify the downlink optical signal(s) and to output the amplified one or multiple downlink optical signal(s); a second optical diplexer, configured to couple the downlink optical signal(s) amplified by the downlink optical amplifier to the second segment of Feeder fiber, and to transmit the uplink optical signal(s) from the second segment of Feeder fiber to the uplink optical amplifier; and the uplink optical amplifier, configured to amplify the uplink optical signal(s) and to output the amplified uplink optical signal(s). The present invention resolves the long reach coexistence of several PON systems.