集成光注入锁定DFB激光器调制带宽增强与啁啾降低

IF 2.1 3区工程技术 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Journal of Quantum Electronics Pub Date : 2024-10-10 DOI:10.1109/JQE.2024.3478090

Yitong Liu;Yunshan Zhang;Shijian Guan;Jilin Zheng;Zeyu Gang;Zhenxing Sun;Tao Fang;Xiangfei Chen

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引用次数: 0

摘要

设计了一种基于重构等效啁啾（REC）技术的两段集成互注入分布反馈（DFB）直接调制激光器。利用光注入锁定和失谐加载的联合效应，将互注入激光器的3db调制带宽提高到28 GHz，侧模抑制比（SMSR）高于42 dB。在稳定锁定状态下，相对强度噪声（RIN）降至-145 dB/Hz以下，啁啾参数从2.61降至1.34。此外，互注入激光器还具有良好的调制线性度，在较宽的频率范围内，1 db压缩点大于16.46 dBm。在20ghz调制频率下，无杂散动态范围（SFDR）为94.21 dB $\cdot $ ${\ mathm {Hz}} {\ mathm{(2/3)}}$。

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Modulation Bandwidth Enhancement and Chirp Reduction in Integrated Optical Injection Locking DFB Laser

In this paper, a two-section integrated mutual injection distributed feedback (DFB) direct modulation laser based on reconstruction equivalent chirp (REC) technology is designed. By using the combined effect of optical injection locking and detuned-loading, the 3-dB modulation bandwidth of the mutual injection laser is increased to 28 GHz, and the side-mode suppression ratio (SMSR) is higher than 42 dB. The relative intensity noise (RIN) is reduced to below -145 dB/Hz and the chirp parameter is reduced from 2.61 to 1.34 under the stable locking state. Furthermore, the mutual injection laser also has good modulation linearity, in a wide frequency range with the 1-dB compression point larger than 16.46 dBm. The Spurious-free Dynamic Range (SFDR) is 94.21 dB

$\cdot $

${\mathrm {Hz}}^{\mathrm {(2/3)}}$

at the 20 GHz modulation frequency.

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来源期刊

IEEE Journal of Quantum Electronics 工程技术-工程：电子与电气

CiteScore

4.70

自引率

4.00%

发文量

审稿时长

3.0 months

期刊介绍： The IEEE Journal of Quantum Electronics is dedicated to the publication of manuscripts reporting novel experimental or theoretical results in the broad field of the science and technology of quantum electronics. The Journal comprises original contributions, both regular papers and letters, describing significant advances in the understanding of quantum electronics phenomena or the demonstration of new devices, systems, or applications. Manuscripts reporting new developments in systems and applications must emphasize quantum electronics principles or devices. The scope of JQE encompasses the generation, propagation, detection, and application of coherent electromagnetic radiation having wavelengths below one millimeter (i.e., in the submillimeter, infrared, visible, ultraviolet, etc., regions). Whether the focus of a manuscript is a quantum-electronic device or phenomenon, the critical factor in the editorial review of a manuscript is the potential impact of the results presented on continuing research in the field or on advancing the technological base of quantum electronics.