Research Progress on Eye-Safe All-Solid-State Single-Frequency Lasers

Qing, 王庆 Wang; Chunqing, 高春清 Gao

doi:10.3788/cjl202148.0501004

Chin. J. Laser

2021

DOI: 10.3788/cjl202148.0501004

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Research Progress on Eye-Safe All-Solid-State Single-Frequency Lasers

王庆 Wang Qing¹,

高春清 Gao Chunqing²

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Cited by 6 publications

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High-energy single-longitudinal-mode Q-switched double-cladding fiber laser based on the injection seeding technique

Zhang,

Lu,

Mao

2024

Appl. Opt.

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This paper demonstrates a high-energy, single-longitudinal-mode (SLM), actively Q-switched fiber laser based on the injection seeding technique. The large-mode-area double-cladding fiber is used as the gain medium to improve energy storage. Simultaneously, by using the linear electro-optic effect of the negative uniaxial crystal (β-BaB2O4, BBO), a matching frequency-shift-free Q-switch with high damage threshold and high extinction-ratio is designed. Before reaching the stimulated Brillouin scattering threshold, the SLM Q-switched pulses can be achieved with energy higher than 15 µJ over a wide range of repetition rates from 10 to 80 kHz, and the maximum output power reaches 1.2 W at the repetition rate of 80 kHz, which may be the highest output pulse energy for such a SLM Q-switched fiber laser so far, to our best knowledge.

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High-energy single-longitudinal-mode Q-switched double-cladding fiber laser based on the injection seeding technique

Zhang,

Lu,

Mao

2024

Appl. Opt.

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Tunable and Switchable Dual-Wavelength SLM Narrow-Linewidth Fiber Laser with a PMFBG-FP Filter Cascaded by Multi-Ring Cavity

Gao

Yin

et al. 2022

Photonics

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A single longitudinal mode (SLM) dual-wavelength switchable erbium-doped fiber laser (DW-EDFL) based on polarization-maintaining fiber Bragg grating Fabry–Perot cavity (PMFBG-FP) cascaded multiple sub-ring cavities (MSCs) is proposed. A PMFBG-FP with a narrow-band transmission peak and MSCs was implemented as an optical filter to achieve stable dual-wavelength laser output and guaranteed SLM status. By stretching the PMFBG, a highly stable dual-wavelength tunable output could be achieved with a maximum tuning interval of 0.17 nm. The optical signal-to-noise-ratio (OSNR) at dual-wavelength lasing was higher than 57 dB, and the optimal wavelength and power fluctuations within 0.5 h were 0.01 nm and 0.79 dB, respectively. Meanwhile, the measured linewidths of each wavelength were 1.55 kHz and 1.65 kHz, respectively. The measured polarization states of the two laser wavelengths were linear and orthogonal, with a degree of polarization (DOP) of nearly 100%.

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基于双级联法布里-珀罗干涉仪多纵模测温激光雷达技术

Shen Fahua,

Li Xuekang,

Zhu Jiangyue

et al. 2023

红外与激光工程

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Research Progress on Eye-Safe All-Solid-State Single-Frequency Lasers

Cited by 6 publications

References 0 publications

High-energy single-longitudinal-mode Q-switched double-cladding fiber laser based on the injection seeding technique

High-energy single-longitudinal-mode Q-switched double-cladding fiber laser based on the injection seeding technique

Tunable and Switchable Dual-Wavelength SLM Narrow-Linewidth Fiber Laser with a PMFBG-FP Filter Cascaded by Multi-Ring Cavity

基于双级联法布里-珀罗干涉仪多纵模测温激光雷达技术

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