主要从事窄线宽激光、片上声光调制及超高速光信号处理方面的研究：

(1) 在窄线宽激光技术方面，研究超窄线宽激光线宽压缩、波长调谐及参数测量的基本模型、核心器件以及系统优化。提出并建立了基于自适应分布弱反馈的超窄线宽激光模型，基于短延迟相干探测、分数傅里叶变换等高精度、动态激光参数测量技术，探索了动态线宽压缩与波长自适应调谐的时频动力学规律，实现了亚Hz量级本征线宽、10Hz量级积分线宽的超窄线宽光纤激光器、半导体激光器与可调激光器。

(2) 在片上声光调制方面，研究微纳光波导中的声光调制效应、微纳器件及应用。提出了基于声致偏转旋转的微纳光纤声光可重构滤波器，波长调谐范围超过500nn，滤波带宽在1nm-20nm范围内可切换，作为核心可调滤波器件应用于可调谐窄线宽激光器与光纤光谱仪，扫频帧率大于1000帧/秒，光谱范围超过100nm，波长精度优于1nm。提出了片上声光超晶格调制效应和器件，可扩大片上声光调制的动量匹配范围，显著提升片上声光器件的调谐范围和精度，基于该器件模型设计了一种声表面波（SAW）驱动的薄膜铌酸锂（TFLN）声光超晶格调制波导布拉格光栅，为集成光子-声子量子测量、片上可重构光场调控、片上光谱检测、和微波光子学提供了一种灵活的方法。

(3) 在超高速光信号处理方面，面向全光采样、时域卷积神经网络、全光逻辑计算等超高速全光信息处理技术，研究光学频率梳（光纤光梳、集成片上光梳）在片上非线性光子器件（氮化硅波导、PPLN等）中的高速光互作用机制及动力学规律，同时探索片上时间透镜等集成式超高速光信号检测技术，用于超高速全光信号检测及系统验证。

主要科研项目：

(1) 国家自然科学基金面上项目，“片上声光超晶格调制效应及器件研究”，2027.1-2030.12，主持；

(2) 国家自然科学基金联合基金重点项目，“基于双光频梳的超高速高精度三维面形成像研究”，2027.1-2030.12，子课题负责人；

(3) 国家自然科学基金面上项目，“基于声光效应的快速可重构在纤式滤波器研究”，2021.1-2024.12，主持；

(4) 国家自然科学基金重点项目，“耐辐照高性能空芯微结构保偏光纤及器件研究”，2020.1-2024.12，子课题负责人；

(5) 国家自然科学基金青年项目，“窄线宽光纤激光器的微腔稳频及声光调谐技术研究”，2018.1-2020.12，主持；

(6) 中央高校XX科技创新专项，“可用于卫星激光通信的窄线宽激光技术研究”，2018.7-2021.6，主持；

(7) 重庆市自然科学基金基础研究与前沿探索项目，“窄线宽激光器及频率漂移测量技术研究”，2018.7-2021.6，主持；

(8) 重庆市博士后创新人才支持计划，“全光纤窄线宽激光器的微腔稳频及快速调谐技术研究”，2018.1-2019.12，主持；

代表性论文：

(1)   K. Zhao, C. Zhang, S. Liu, X. Huang, J. Chen, J. Wu, Y. Li*, L. G. Huang*, L. Shi, L. Gao, G. Yin, and T. Zhu, "Wideband Brillouin-Kerr-Raman Frequency Comb Generation Based on Pump Locked Microsphere Resonator," Journal of Lightwave Technology 44, 5633-5639 (2026).

(2)  S. Liu, Y. Li*, H. Zhou, L. Chen, H. Wu, C. Zhang, S. Jiang, Y. Cao, L. Shi, L. Gao, L. Cao, L. G. Huang*, and T. Zhu, "Surface Acoustic Wave Detection Based on Ultrafast Swept Lasers," Journal of Lightwave Technology 44, 4822-4828 (2026).

(3)  C. Zhang, Y. Li*, Y. Long, L. Dang, L. Chen, Y. Chen, M. Xu, S. Liu, K. Zhao, Y. Mao, L. Shi, C. Gong, L. Gao, G. Yin, L. G. Huang*, and T. Zhu, "Exploration of time-stretch ultrafast wavelength-swept laser dynamics based on self-homodyne coherent detection systems," Optics & Laser Technology 193, 114239 (2026).

(4)   L. G. Huang*, H. Zhou, S. Liu, Y. Zhao, L. Gao, Y. Li*, G. Zhou, and T. Zhu, "All-fiber acousto-optic spectrometer based on acoustically induced fiber gratings," IEEE Photonics Technology Letters 38 (3), 188 (2026).

(5)   C. Zhang, T. Guan, L. G. Huang*, Y. Li, L. Dang, Y. Mao, L. Gao, L. Shi, G. Yin, C. Gong, and T. Zhu*, "Adaptive distributed-feedback semiconductor laser," Physical Review A 111 (4), 043511 (2025).

(6)   Y. Mao, C. Zhang, L. G. Huang*, L. Gao, Y. Li, L. Shi, G. Yin, C. Gong, and T. Zhu, "Narrow-linewidth microcavity Brillouin laser based on pump-locked high-Q silica microsphere resonator," Applied Physics Letters 126 (3), 031105 (2025).

(7)   L. G. Huang*, H. Zhou, S. Liu, W. Huang, L. Gao, Y. Li*, and T. Zhu, "Single-Pixel Fiber Spectrometer Based on All-Fiber Acousto-Optic Tunable Band-Rejection Filter," IEEE Transactions on Instrumentation and Measurement 74, 7012809 (2025).

(8)   L. G. Huang*, H. Zhou, S. Liu, L. Gao, Y. Li*, W. Huang, L. Cao, and T. Zhu, "Surface Acoustic Wave Detection System Based on Acousto-Optic Effect of On-Chip Microfiber," Journal of Lightwave Technology 43 (15), 7506 (2025).

(9)   L. G. Huang, Y. Zhao, Y. Li*, S. Liu, H. Zhou, L. Gao, L. Shi, G. Zhou, and T. Zhu, "Long period fiber gratings in anti-resonant hollow core fiber," Applied Physics Express 18 (1), 012002 (2025).

(10) C. Zhang, L. G. Huang*, T. Guan, Y. Mao, J. Li, L. Gao, W. Huang, L. Shi, G. Yin, and T. Zhu, "Dynamic exploration of laser linewidth compression in resonant feedback external-cavity laser," Applied Physics Letters 124 (19), 191103 (2024).

(11) L. G. Huang, Y. Zhao, Y. Li*, S. Liu, H. Zhou, L. Gao, G. Zhou, and T. Zhu, "Tunable acoustically-induced fiber gratings based on the anti-resonant hollow-core fiber," IEEE Photonics Technology Letters 36 (22), 1345 (2024).

(12) C. Zhang, L. G. Huang*, T. Guan, Y. Mao, L. Dang, T. Lan, L. Shi, L. Gao, and T. Zhu, "Laser coherence linewidth measurement based on deterioration of coherent envelope," Optics & Laser Technology 172, 110498 (2024).

(13) L. G. Huang, Y. Zhao, B. Zheng, S. Liu, C. Zhang, G. Yin, T. Liu, and T. Zhu, "Wideband acousto-optic tunable fiber laser based on dual-SOA gain," Optics & Laser Technology 171, 110467 (2024).

(14) T. Lan, C. Zhang, L. G. Huang*, L. Dang, T. Guan, B. Zheng, S. Liu, L. Gao, W. Huang, G. Yin, and T. Zhu, "Intrinsic Spectrum Analysis of Laser Dynamics Based on Fractional Fourier Transform," Journal of Lightwave Technology 41, 4777-4785 (2023).

(15) L. G. Huang*, S. Liu, B. Zheng, Y. Zhao, L. Dang, L. Gao, W. Huang, G. Yin, and T. Zhu, "Narrowband all-fiber acousto-optic tunable add-drop filter based on dispersion-compensating fiber," Optics & Laser Technology 167, 109759 (2023).

(16) L. G. Huang*, S. Liu, C. Zhang, Y. Zhao, L. Dang, L. Gao, W. Huang, G. Yin, and T. Zhu, "Acousto-optic reconfigurable filter based on vector mode fusion in dispersion-compensating fiber," Optics Express 31, 21253-21263 (2023).

(17) T. Lan, C. Zhang, L. G. Huang*, L. Dang, T. Guan, L. Gao, W. Huang, L. Shi, G. Yin, and T. Zhu*, "Dynamic intrinsic spectrum reconstruction of narrow-linewidth laser based on band-extended frequency noise," Optics & Laser Technology 163, 109367 (2023).

(18) L. Dang^#, L. G. Huang^#, L. Shi^#, F. Li, G. Yin, L. Gao, T. Lan, Y. Li, L. Jiang, and T. Zhu*, "Ultra-high spectral purity laser derived from weak external distributed perturbation," Opto-Electronic Advances 6, 210149 (2023).

(19) Y. J. Li, L. Y. Dang, L. G. Huang*, T. Y. Lan, H. N. Han, L. Gao, Y. L. Cao, F. H. Li, L. D. Jiang, G. L. Yin, P. I. Iroegbu, and T. Zhu*, "Tunable narrow-linewidth fiber laser based on the acoustically controlled polarization conversion in dispersion compensation fiber," Journal of Lightwave Technology 40, 2971-2979 (2022).

(20) Y. Li, L. Dang, L. G. Huang*, Y. Cao, B. Zheng, P. I. Iroegbu, T. Lan, L. Shi, L. Gao, G. Yin, and T. Zhu*, "Tuning dynamics of the acousto-optical tunable SOA fiber laser," Journal of Lightwave Technology 40, 5967-5973 (2022).

(21) T. Lan, Z. Cao, L. G. Huang*, Y. Li, F. Li, L. Jiang, P. I. Iroegbu, L. Dang, Q. Gao, L. Liang, K. Mei, S. Fu, G. Yin, and T. Zhu*, "Ultra-narrow-linewidth DFB laser array based on dual-cavity feedback," Optics Express 30, 14617-14628 (2022).

(22) L. Jiang, T. Lan, L. Dang, J. Li, L. G. Huang*, L. Shi, G. Yin, and T. Zhu, "Ultra-narrow linewidth vertical-cavity surface-emitting laser based on external-cavity weak distributed feedback," Optics Express 30, 37519-37525 (2022).

(23) L. G. Huang*, B. Zheng, S. Liu, L. Dang, C. Zhang, T. Guan, L. Gao, W. Huang, G. Yin, and T. Zhu*, "Ultra-widely tunable acousto-optic add-drop filter based on acoustically-induced polarization conversion of single mode fiber," Journal of Lightwave Technology 40, 7396-7402 (2022).

(24) L. Dang, C. Zhang, B. Zheng, Y. Cao, L. G. Huang*, P. I. Iroegbu, T. Lan, J. Li, G. Yin, and T. Zhu, "Tens of hertz ultra-narrow linewidth fiber ring laser based on external weak distributed feedback," Optics Express 30, 34575-34585 (2022).

(25) Y. Li, L. G. Huang*, H. Han, L. Gao, Y. Cao, Y. Gong, W. Zhang, F. Gao, I. P. Ikechukwu, and T. Zhu, "Acousto-optic tunable ultrafast laser with vector-mode-coupling-induced polarization conversion," Photonics Research 7, 798-805 (2019).

(26) H. Han, Y. Li, L. G. Huang*, L. Gao, W. Huang, M. Liu, and T. Zhu*, "Dual-wavelength narrowband all-fiber acousto-optic tunable bandpass filter based on dispersion-compensating fiber," Appl. Phys. Express 12, 122008 (2019).

(27) L. G. Huang, W. Zhang, Y. Li, H. Han, X. Li, P. Chang, F. Gao, G. Zhang, L. Gao, and T. Zhu*, "Acousto-optic tunable bandpass filter based on acoustic-flexural-wave-induced fiber birefringence," Opt. Lett. 43, 5431-5434 (2018).

(28) L. G. Huang*, P. Chang, X. Li, W. Zhang, Y. Li, F. Gao, F. Bo, L. Gao, W. Huang, M. Liu, and T. Zhu, "All-fiber narrow-linewidth ring laser with continuous and large tuning range based on microsphere resonator and fiber Bragg grating," Opt. Express 26, 32652-32661 (2018).

(29) L. G. Huang, J. Wang, W. Peng, W. Zhang, F. Bo, X. Yu, F. Gao, P. Chang, X. Song, G. Zhang, and J. Xu, "Mode conversion in a tapered fiber via a whispering gallery mode resonator and its application as add/drop filter," Optics Letters 41, 638-641 (2016).

(30) L. G. Huang, P. Chang, X. Song, W. Peng, W. Zhang, F. Gao, F. Bo, G. Zhang, and J. Xu, "Tunable in-fiber Mach-Zehnder interferometer driven by unique acoustic transducer and its application in tunable multi-wavelength laser," Optics Express 24, 2406-2412 (2016).

(31) L. G. Huang, X. Song, P. Chang, W. Peng, W. Zhang, F. Gao, F. Bo, G. Zhang, and J. Xu, "All-fiber tunable laser based on an acousto-optic tunable filter and a tapered fiber," Optics Express 24, 7449-7455 (2016).

(32) L. G. Huang, W. Peng, F. Gao, F. Bo, G. Zhang, and J. Xu, "Mutually modulated cross-gain modulation with a considerable modulation wavenumber-interaction length product," Optics Express 23, 12004-12012 (2015).