Dual-Wavelength DFB Laser Array Based on Sidewall Grating and Lateral Modulation of the Grating Coupling Coefficient

被引：3

作者：

Yuan, Bocheng ^{[1
]}

Fan, Yizhe ^{[1
]}

Ye, Shengwei ^{[1
]}

Zhang, Yunshan ^{[2
]}

Sun, Yiming ^{[1
]}

Sun, Xiao ^{[1
]}

Cheng, Weiqing ^{[1
]}

Liang, Song ^{[3
]}

Huang, Yongguang ^{[3
]}

Zhang, Ruikang ^{[3
]}

Wang, Jue ^{[1
]}

Marsh, John H. ^{[1
]}

Hou, Lianping ^{[1
]}

机构：

[1] Univ Glasgow, James Watt Sch Engn, Glasgow G1 2FF, Lanark, Scotland

[2] Nanjing Univ, Coll Opticeelect, Nanjing 210000, Peoples R China

[3] Chinese Acad Sci, Inst Semicond, Beijing 100026, Peoples R China

来源：

JOURNAL OF LIGHTWAVE TECHNOLOGY | 2023年 / 41卷 / 09期

基金：

英国工程与自然科学研究理事会;

关键词：

Grating coupling coefficient; microwave generation; monolithic DFB laser; sidewall grating; FIBER LASER; GENERATION;

D O I：

10.1109/JLT.2023.3237601

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A monolithic dual-wavelength DFB laser array based on sidewall gratings and a novel modulation of the grating coupling coefficient is proposed and demonstrated experimentally. The grating coupling coefficient distribution along the cavity is modulated by changing the alignment between the gratings on the two sidewalls. The frequency difference between the two lasing modes can be modulated by changing the cavity length and grating recess depth. A series of microwave signals in the range of 50 GHz to 59 GHz is observed after beating the two optical lines in a photodetector. The measured optical linewidths are 250 kHz and 850 kHz when the cavity length is 1200 mu m and 1000 mu m, respectively.

引用

页码：2775 / 2784

页数：10

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