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1. (WO2017152401) OPTICAL AMPLIFIER

Pub. No.:    WO/2017/152401    International Application No.:    PCT/CN2016/076014
Publication Date: Fri Sep 15 01:59:59 CEST 2017 International Filing Date: Thu Mar 10 00:59:59 CET 2016
IPC: H01S 5/50
H01S 5/062
Applicants: HUAWEI TECHNOLOGIES CO., LTD.
华为技术有限公司
Inventors: ZHAO, Jialin
赵家霖
MAN, Jiangwei
满江伟
FU, Shengmeng
付生猛
ZHANG, Hongguang
张红广
Title: OPTICAL AMPLIFIER
Abstract:
An optical amplifier, relating to the field of optical communications and used for amplifying an optical signal and filtering out noise introduced when a semiconductor optical amplifier (SOA) amplifies signal light. The optical amplifier comprises an oppositely arranged base substrate (1) and cover layer (2), wherein the base substrate (1) comprises a first surface (101) and a second surface (102) opposite each other; an optical amplification layer (3) arranged between the base substrate (1) and the cover layer (2) and corresponding to a first sub-region (1011) of the first surface (101); a first optical grating (4) arranged between the base substrate (1) and the cover layer (2) and corresponding to a second sub-region (1012) of the first surface (101); a second optical grating (5) arranged in the plane where the first optical grating (4) is located and corresponding to a third sub-region (1013) of the first surface (101), wherein the first optical grating (4) and the second optical grating (5) are both chirped gratings; wavelength intervals of reflectivity stop bands of the first optical grating (4) and the second optical grating (5) do not overlap; a contact layer (6) is in contact with the cover layer (2); a first electrode (7) is in contact with the contact layer (6) and corresponds to the first sub-region (1011); and a second electrode (8) is in contact with the second surface (102) of the base substrate (1).