基于NPR效应的多波长SOA光纤激光器  

Multi-wavelength SOA fiber laser based on NPR effect

作　　者：郝红甜 刘柯 周雪芳[1] 王希杰 HAO Hongtian;LIU Ke;ZHOU Xuefang;WANG Xijie(School of communication and engineering,Hangzhou Dianzi University,Hangzhou 310018,China)

机构地区：[1]杭州电子科技大学通信工程学院,杭州310018

出　　处：《光通信技术》2020年第8期31-34,共4页Optical Communication Technology

基　　金：浙江省自然科学基金(LGG19F050001)资助;浙江省教育厅一般项目(Y201840747)资助;国家自然科学基金(601705055)资助。

摘　　要：为了实现稳定的多波长输出,设计了一种基于半导体光放大器(SOA)的非线性偏振旋转(NPR)效应的多波长光纤激光器。该激光器利用SOA的NPR效应,将SOA与其它偏振器件组合引起强度相关损耗(IDL),抑制SOA均匀加宽线宽内的模式竞争,在室温下实现了波长间隔为0.63 nm的35个稳定的多波长输出。此外,通过偏振调节实现了12 nm的波长调谐。最后,实验验证了增加保偏光纤(PMF)长度能够实现更小波长间隔的稳定多波长输出。In order to achieve stable multi-wavelength output,a multi-wavelength fiber laser based on nonlinear polarization rotation(NPR)of semiconductor optical amplifiers(SOA)is proposed and demonstrated.Due to the NPR effect of SOA,the intensity-dependent loss(IDL)is induced by the combination consisting of SOA and other polarization devices to suppress mode competition within homogenous broadening linewidth of SOA.Stable multi-wavelength lasing with wavelength spacing as small as 0.63 nm and wavelength number up to 35 is achieved at room temperature.Moreover,12 nm wavelength tuning is implemented by tuning polarization.Finally,experimental investigation is carried out to show the stable multi-wavelength output with smaller wavelength spacing can be achieved by increasing the length polarization-maintaining fiber(PMF).

关 键 词：多波长光纤激光器 模式竞争 非线性偏振旋转 强度相关损耗 SAGNAC环 

分 类 号：TN253[电子电信—物理电子学]