Results 11 to 20 of about 4,679 (225)

Advances in narrow linewidth diode lasers [PDF]

SCIENTIA SINICA Informationis, 2019
The era of smart travel has arrived, and the need for high precision lidar detection technology is increasing. With the advantages of high resolution, a strong anti-active jamming ability, small volume, light weight, and low cost, new solid-state lidars can meet the requirements of intelligent cars in the future.
Xingkai Lang, Peng Jia, Yongyi Chen, Li Qin, Lei Liang 0001, Chao Chen, Yubing Wang, Xiaonan Shan, Yongqiang Ning, Lijun Wang   +9 more
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Study on external cavity diode laser with a wide mode-hopping free tuning range

Frontiers in Physics, 2022
A wide mode-hopping free and narrow linewidth tunable laser diode source with a Littman-Metcalf arrangement based on a diffraction grating is presented. Several experiments are carried out to demonstrate the tuning characteristics and spectral linewidth ...
Aiguo Zhang, Shan Qiao, Liwen Sheng, Liwen Sheng, Liwen Sheng, Lin Huang, Lin Huang, Lin Huang, Zhiming Liu, Junwei Ju, Zhihui Zhang, Bingqi Yin, Peng Li, Jiaqing Liu, Jiaqing Liu, Yu Wei   +15 more
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The Influence of Noise Floor on the Measurement of Laser Linewidth Using Short-Delay-Length Self-Heterodyne/Homodyne Techniques

Micromachines, 2022
Delayed self-heterodyne/homodyne measurements based on an unbalanced interferometer are the most used methods for measuring the linewidth of narrow-linewidth lasers.
Zhongan Zhao, Zhenxu Bai, Duo Jin, Xiaojing Chen, Yaoyao Qi, Jie Ding, Bingzheng Yan, Yulei Wang, Zhiwei Lu, Richard P. Mildren   +9 more
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A Sub-kHz Narrow-Linewidth, and Hundred-mW High-Output-Power Silicon-Based Er Silicate Laser With Hybrid Pump and Signal Co-Resonant Cavity

IEEE Photonics Journal, 2020
Narrow-linewidth silicon-based lasersplay an important role in the field of silicon photonics. In this paper, we have proposed a high performance narrow-linewidth silicon-based Er silicate laser, based on strip-loaded DFB waveguide with a hybrid pump and
Peiqi Zhou, Xingjun Wang, Yandong He
doaj   +1 more source

Narrow-Linewidth 2 μm All-Fiber Laser Amplifier with a Highly Stable and Precisely Tunable Wavelength for Gas Molecule Absorption in Photonic Crystal Hollow-Core Fibers

Molecules, 2021
In recent years, mid-infrared fiber lasers based on gas-filled photonic crystal hollow-core fibers (HCFs) have attracted enormous attention. They provide a potential method for the generation of high-power mid-infrared emissions, particularly beyond 4 μm.
Wenxi Pei, Hao Li, Yulong Cui, Zhiyue Zhou, Meng Wang, Zefeng Wang   +5 more
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Narrow-linewidth fiber laser operating at 155 μm [PDF]

Optics Letters, 1987
We report the fabrication and operation of an Er(3+)-doped silica single-mode fiber laser operating at 1.55 microm and using a distributed fiber grating to provide feedback. The output bandwidth was measured as 0.04 nm, significantly narrower than the conventional cavity design. The laser had a threshold of 13 mW and a slope efficiency of 5%.
Jauncey, I.M., Reekie, L., Mears, R.J., Rowe, C.J.   +3 more
openaire   +3 more sources

L-Band Erbium Fiber Laser with Tunable and Narrow Sub-kHz Linewidth Output

Applied Sciences, 2023
In this paper, a wavelength-selectable erbium-doped fiber (EDF) laser in L-band bandwidth with a simple structure and low cost is described. To obtain stable single-longitudinal-mode (SLM) and narrow laser linewidth, the 2 m unpumped EDF-based saturable ...
Lan-Yin Chen, Yu-Ting Lai, Chien-Hung Yeh, Chun-Yen Lin, Kuan-Ming Cheng, Jing-Heng Chen, Chi-Wai Chow   +6 more
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A Narrow-Linewidth Linearly Polarized 1018-nm Fiber Source for Pumping Diamond Raman Laser

Frontiers in Physics, 2021
A 7.8-GHz linewidth ytterbium-doped fiber (YDF) laser with an output power of 75 W at 1,018 nm is demonstrated based on narrow-bandwidth fiber Bragg gratings.
Xuezong Yang, Xuezong Yang, Zhenxu Bai, Zhenxu Bai, Huawei Jiang, Richard P. Mildren, Yan Feng, Yan Feng   +7 more
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Narrow-Linewidth GaN-on-Si Laser Diode with Slot Gratings

Nanomaterials, 2021
This letter reports room-temperature electrically pumped narrow-linewidth GaN-on-Si laser diodes. Unlike conventional distributed Bragg feedback laser diodes with hundreds of gratings, we employed only a few precisely defined slot gratings to narrow the ...
Yongjun Tang, Meixin Feng, Jianxun Liu, Shizhao Fan, Xiujian Sun, Qian Sun, Shuming Zhang, Tong Liu, Yaping Kong, Zengli Huang, Masao Ikeda, Hui Yang   +11 more
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Recent progress on narrow-linewidth crystalline bulk Raman lasers

Results in Physics, 2020
Narrow-linewidth, solid-state Raman lasers are of significant importance for numerous applications. In last decade, variety of methods have been utilized to suppress the spectral linewidth of Raman laser output.
Quan Sheng, Hanchao Ma, Ran Li, Meng Wang, Wei Shi, Jianquan Yao   +5 more
doaj   +1 more source