Generation of an optical triangular-shaped pulse train with variable symmetry by using an I/Q modulator

被引：18
|
作者：
Li, Jing [1 ]
Wang, Chuangye [1 ]
Pei, Li [1 ]
Ning, Tigang [1 ]
Zheng, Jingjing [1 ]
He, Ruisi [2 ]
Li, Yujian [1 ]
机构：
[1] Beijing Jiaotong Univ, Key Lab Opt Network & Adv Telecommun Network EMC, Beijing 100044, Peoples R China
[2] Beijing Jiaotong Univ, State Key Lab Rail Traff Control & Safety, Beijing 100044, Peoples R China
来源：
OPTICS LETTERS | 2020年 / 45卷 / 06期
基金：
中国国家自然科学基金;
关键词：
PHOTONIC GENERATION;
D O I：
10.1364/OL.386910
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A setup for an optical triangular-shaped pulse train with variable symmetry is proposed. The key component is an I/Q (I: in-phase, Q: quadrature phase) modulator. By properly setting the three variables, the optical intensity can be expressed by the sum of infinite sinusoidal harmonics, which indicates the possibility to approximate the asymmetrical waveform. It is found that the scheme is capable for generating an optical triangular-shaped pulse train with a tunable symmetrical coefficient (20% <= delta <= 80%) and low fitting error (eta <= 6%). (C) 2020 Optical Society of America
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页码：1411 / 1414
页数：4
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