色散响应宽带可调水下 FMCW 蓝色啁啾激光源。

IF 3.2 2区 物理与天体物理 Q2 OPTICS
Optics express Pub Date : 2024-11-04 DOI:10.1364/OE.536887
Guohui Xing, Jiamin Rong, Kai Xue, Jianglong Li, Hongbo Yue, Tong Xing, Tao Jia, Wenyao Liu, Yanru Zhou, Enbo Xing, Jun Tang, Jun Liu
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引用次数: 0

摘要

频率调制连续波(FMCW)窄线宽激光器是自动驾驶、可穿戴技术、虚拟现实和遥感测绘等应用的基石。这些研究通常使用强相干激光器,对线性快速响应和宽频率调谐范围有着明确的要求。本文利用晶体耳语-画廊模式谐振器的超高品质因数,通过自注入锁定机制来抑制自发辐射噪声并提高相干性,从而获得了 450 nm 的亚千赫线宽。此外,基于色散响应原理,利用应变影响谐振器实现了快速电调谐,实验测试结果达到 81 pm/V。更重要的是,我们证明了这种 FMCW 激光器在水下探测中的综合性能,在 1 kHz 的啁啾频率下灵敏度达到 319 MHz/m。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Dispersion response broadband tunable underwater FMCW blue chirped laser source.

Frequency-modulated continuous-wave (FMCW) narrow linewidth lasers have served as the cornerstone behind applications such as autonomous driving, wearable technology, virtual reality, and remote sensing mapping. Strongly coherent lasers are typically used for these studies, with a clear demand for linear fast response and wide frequency tuning range. In this paper, profiting from the ultrahigh-quality factor of the crystalline whispering-gallery-mode resonator, by using a self-injection locking mechanism to suppress spontaneous emission noise and improve coherence, sub-kHz linewidth at 450 nm is obtained. Furthermore, based on the dispersive response principle, fast electrical tuning is realized by using the strain-influenced resonator, and the experimental test result reaches 81 pm/V. More importantly, we demonstrate the comprehensive performance of this type of FMCW laser in underwater detection, with a sensitivity of 319 MHz/m at a chirp frequency of 1 kHz.

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来源期刊
Optics express
Optics express 物理-光学
CiteScore
6.60
自引率
15.80%
发文量
5182
审稿时长
2.1 months
期刊介绍: Optics Express is the all-electronic, open access journal for optics providing rapid publication for peer-reviewed articles that emphasize scientific and technology innovations in all aspects of optics and photonics.
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