CAJ | 학술논문

采用单偏振调制器(PolM)或双偏振调制器，我们提出并实现了两种四倍频光脉冲序列生成方案。第一种方案采用单偏振调制器级联色散介质(比如啁啾光纤Bragg光栅)的结构，而第二种方案采用双偏振调制器的并联结构。在两种方案中，光脉冲序列的基本原理如下：对相位调制型光信号的频谱分量进行周期型抑制，即抑制每4个频率分量的3个，从而生成四倍频光脉冲。在四倍频光脉冲生成的验证实验中，当施加3.4GHz的正弦信号时，获得了重复频率为13.6GHz的归零码光脉冲序列。
채용단편진조제기(PolM)혹쌍편진조제기，아문제출병실현료량충사배빈광맥충서렬생성방안。제일충방안채용단편진조제기급련색산개질(비여조추광섬Bragg광책)적결구，이제이충방안채용쌍편진조제기적병련결구。재량충방안중，광맥충서렬적기본원리여하：대상위조제형광신호적빈보분량진행주기형억제，즉억제매4개빈솔분량적3개，종이생성사배빈광맥충。재사배빈광맥충생성적험증실험중，당시가3.4GHz적정현신호시，획득료중복빈솔위13.6GHz적귀령마광맥충서렬。
Two approaches are proposed to generating repetition-rate quadrupled optical pulse trains using a polarization modulator (PolM) or a pair of PolMs. In the first approach, a PolM is used in conjunction with a dispersive element (i.e., a chirped fiber Bragg grating). In the second approach, a pair of PolMs which are connected in parallel are employed. The fundamental principle in achieving repetition-rate quadrupling is the periodic suppression of three consecutive optical spectral lines of a phase-modulated light wave. A proof-of-concept experiment is performed in which a return-to-zero (RZ) pulse train having a repetition rate of 13.6 GHz is generated when a sinusoidal signal at 3.4 GHz is applied.