Title:
FILTER, OPTICAL AMPLIFIER, COMMUNICATION SYSTEM, FILTERING METHOD AND OPTICAL AMPLIFICATION METHOD
Document Type and Number:
WIPO Patent Application WO/2021/232834
Kind Code:
A1
Abstract:
A filter, an optical amplifier, a communications system, a filtering method, an optical amplification method, and a storage medium. The filter comprises a first filtering component (112a) and a second filtering component (112b) coupled to each other, wherein the first filtering component (112a) is used to receive optical signals, and filter the optical signals on the basis of a first power difference of signals transmitted by a plurality of frequency bands among the optical signals, the first power difference comprising a difference caused by a first doped optical fiber. A first drive electrical signal is loaded on the second filtering component (112b); the first drive electrical signal is configured to control a frequency response of the second filtering component (112b); the second filtering component (112b) is configured to use the frequency response to filter, on the basis of a second power difference of signals transmitted by the plurality of frequency bands, the optical signals filtered by the first filtering component (112a), the second power difference comprising a difference caused by a stimulated Raman scattering effect. The filter ensures the signal quality of a transmitted optical signal.
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| JPH02194743 | OPTICAL STAR COMMUNICATION SYSTEM |
| WO/2001/067137 | COMPRESSION-TUNED GRATING-BASED OPTICAL ADD/DROP MULTIPLEXER |
| JPH05347604 | OPTICAL TRANSMISSION SYSTEM |
Inventors:
GUO QIANG (CN)
OU YANGKUI (CN)
LIU MINGHUI (CN)
CAO SHIYI (CN)
OU YANGKUI (CN)
LIU MINGHUI (CN)
CAO SHIYI (CN)
Application Number:
PCT/CN2021/072545
Publication Date:
November 25, 2021
Filing Date:
January 18, 2021
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H04J14/02; H04B10/294
Foreign References:
| CN1578205A | 2005-02-09 | |||
| CN1463107A | 2003-12-24 | |||
| CN1474208A | 2004-02-11 | |||
| CN101911549A | 2010-12-08 | |||
| US6975449B1 | 2005-12-13 | |||
| CN202010423345A | 2020-05-19 |
Attorney, Agent or Firm:
BEIJING SAN GAO YONG XIN INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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