Highly efficient iteration algorithm for a linear frequency-sweep distributed feedback laser in frequency-modulated continuous wave lidar applications

被引：36

作者：

Cao, Xianyi ^{[1
]}

Wu, Kan ^{[1
]}

Li, Chao ^{[1
]}

Zhang, Guangjin ^{[1
]}

Chen, Jianping ^{[1
]}

机构：

[1] Shanghai Jiao Tong Univ, Dept Elect Engn, State Key Lab Adv Opt Commun Syst & Networks, Shanghai 200240, Peoples R China

来源：

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS | 2021年 / 38卷 / 10期

基金：

中国国家自然科学基金;

关键词：

LINEARIZATION; PRECISION; LINEWIDTH; DIODE;

D O I：

10.1364/JOSAB.430605

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present an iteration algorithm for generating the linear frequency sweep of a distributed feedback laser at 1550 nm both theoretically and experimentally. This iteration algorithm is convergent and can reach a desired frequency-sweep linearity with only a few iterations. Experimentally, the residual nonlinearity 1-r(2) reaches 5.19 x 10(-8), and the relative frequency error is 0.005% with only six iterations, which has already been comparable to the linearity of the linear chirp signal generated by the external modulation method. (C) 2021 Optical Society of America

引用

页码：D8 / D14

页数：7

共 33 条

[1] Analysis of nonlinear frequency sweep in high-speed tunable laser sources using a self-homodyne measurement and Hilbert transformation [J].