High-Power Solid-State Laser Technology and Its Applications

A special issue of Photonics (ISSN 2304-6732). This special issue belongs to the section "Lasers, Light Sources and Sensors".

Deadline for manuscript submissions: closed (20 January 2024) | Viewed by 7196

Special Issue Editors


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Guest Editor
Hebei Key Laboratory of Advanced Laser Technology and Equipment, Tianjin, China
Interests: novel optical fiber design; optical fiber lasers; optical fiber amplifiers
Special Issues, Collections and Topics in MDPI journals
School of Electronics and Information Engineering, Beijing Jiaotong University, Beijing, China
Interests: terahertz photonic waveguide devices; optical fibers and applications

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Guest Editor
School of Electronical and Mechanical Engineering, Guilin University of Electronic Technology, Guilin, China
Interests: optical fiber laser; optical fiber sensor

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Guest Editor
Center for Advanced Laser Technology (CALT), Hebei University of Technology, Tianjin 300401, China
Interests: nonlinear optics; high-power laser; stimulated Brillouin scattering; solid-state laser; spectral imaging; microimaging
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

High-power solid-state lasers are widely used in many research fields, such as fundamental research, industrial services, defense security, and advanced manufacturing. To achieve a high-power laser, many technologies have been proposed, such as chirped pulse amplification (CPA), Optical parametric CPA (OPCPA), Master Oscillator Power Amplifier (MOPA), and beam combination. Multiple laser media are also used to achieve high-power laser, such as Nd: YAG, Nd:YVO4, Yb: YAG, Optical Fiber, and diamond. This topic aims to address the advanced developments of high-power laser technology and its application, such as solid-state lasers, optical fiber lasers, novel mediums for high-power lasers, laser detection, advanced manufacturing technology, and so on.

This special issue invites manuscripts that introduce the recent advances in “High-Power Solid Lasers and Their Applications”. All theoretical, numerical, and experimental papers are accepted. Topics include, but are not limited to, the following:

  • Ultra-short laser generation and amplification;
  • Pulse Stretching, compression, and measurement;
  • Ultra-high peak power solid laser;
  • Laser Beam combination;
  • Optical fiber lasers and application;
  • Novel laser techniques, and media;
  • Advanced laser processing;
  • Nonlinear optics in high-power lasers;
  • High-power laser weapons;
  • High-power laser for communications, sensing, and detection.

Dr. Yudong Lian
Dr. Haisu Li
Dr. Yulai She
Dr. Zhaohong Liu
Guest Editors

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Keywords

  • high-power laser
  • nonlinear optics
  • laser processing
  • laser media
  • application

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Published Papers (5 papers)

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Research

22 pages, 42529 KiB  
Article
Simulation and Experimental Research of V-Crack Testing of Rail Surfaces Based on Laser Ultrasound
by Yudong Lian, Fenjiao Du, Luyang Xie, Xuan Qi, Peng Jin, Yulei Wang and Zhiwei Lu
Photonics 2024, 11(10), 920; https://doi.org/10.3390/photonics11100920 - 29 Sep 2024
Viewed by 629
Abstract
Rail surface cracks are widespread damage that can lead to uneven surfaces of railheads and affect traveling safety. Non-destructive testing is needed to inspect rails regularly to ensure the normal operation of railroads. This paper proposes a laser ultrasonic testing method combining variational [...] Read more.
Rail surface cracks are widespread damage that can lead to uneven surfaces of railheads and affect traveling safety. Non-destructive testing is needed to inspect rails regularly to ensure the normal operation of railroads. This paper proposes a laser ultrasonic testing method combining variational mode decomposition and diffractive Rayleigh wave time-of-flight to detect tiny cracks on the rail surface quantitatively. The finite element method was combined with experiments to simulate and experimentally investigate cracks of different sizes numerically. In the numerical simulation, the location of the crack was determined by B-scan. Afterward, the interaction between various types of ultrasound and cracks was comparatively analyzed, and the crack size was quantitatively characterized using useful information from the ultrasound signals. The results show that the time-of-flight method can detect arbitrary cracks with low error. Therefore, the experimentally acquired ultrasound signals used the time difference between the diffracted Rayleigh wave and other ultrasound waves to detect the crack information quantitatively. The variational mode decomposition method was used to separate the ultrasonic signals and extract the best surface wave modes to improve the signal-to-noise ratio. The results show that the combination of variational mode decomposition and time-of-flight method can effectively detect the size of cracks. Full article
(This article belongs to the Special Issue High-Power Solid-State Laser Technology and Its Applications)
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12 pages, 3352 KiB  
Article
Sub-Nanosecond Passively Q-Switched Yellow and Orange Raman Lasers
by Yu-Wen Ho, Jian-Cheng Chen, Yueh-Chi Tu, Hsing-Chih Liang and Yung-Fu Chen
Photonics 2024, 11(2), 157; https://doi.org/10.3390/photonics11020157 - 6 Feb 2024
Viewed by 1248
Abstract
Sub-nanosecond high-peak-power passively Q-switched yellow and orange lasers are compactly developed using a near-concentric resonator with intracavity-stimulated Raman scattering (SRS) as well as second harmonic generation (SHG). The fundamental wave is generated from an a-cut Nd:YVO4 crystal. The Stokes wave for [...] Read more.
Sub-nanosecond high-peak-power passively Q-switched yellow and orange lasers are compactly developed using a near-concentric resonator with intracavity-stimulated Raman scattering (SRS) as well as second harmonic generation (SHG). The fundamental wave is generated from an a-cut Nd:YVO4 crystal. The Stokes wave for an SHG yellow (579 nm) or orange (589 nm) laser is generated from a Np-cut potassium gadolinium tungstate (KGW) with the Ng or Nm axis parallel to the c-axis of Nd:YVO4 crystal. The optimal cavity length is systematically explored in a near-concentric configuration to achieve sub-nanosecond high-peak-power pulses. The shortest pulse widths for the yellow and orange output pulses are down to 0.67 ns and 0.70 ns, respectively. The highest peak powers for the yellow and orange output pulses are up to 176 and 138 kW, respectively. Full article
(This article belongs to the Special Issue High-Power Solid-State Laser Technology and Its Applications)
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12 pages, 1415 KiB  
Article
A Sub-Picosecond Laser System Based on High-Energy Yb:YAG Chirped-Pulse Regenerative Amplification
by Minjian Wu, Yixing Geng, Dahui Wang and Yanying Zhao
Photonics 2024, 11(1), 90; https://doi.org/10.3390/photonics11010090 - 17 Jan 2024
Viewed by 1732
Abstract
In this study, we have successfully demonstrated a high-energy subpicosecond Yb:YAG laser system based on chirped-pulse regenerative amplification. Our experimental results demonstrate a pulse energy of 3 mJ with a pulse duration of 829.8 fs and a repetition rate of 1 kHz. Additionally, [...] Read more.
In this study, we have successfully demonstrated a high-energy subpicosecond Yb:YAG laser system based on chirped-pulse regenerative amplification. Our experimental results demonstrate a pulse energy of 3 mJ with a pulse duration of 829.8 fs and a repetition rate of 1 kHz. Additionally, we conducted an extensive investigation into the system’s recompression capability under various modulation and seeding conditions. Our findings suggest that the system can achieve effective recompression over a broad range of parameters, with the ability to compensate for a considerable degree of chirp. Our study provides valuable insights into the fundamental physic of high-energy laser systems and the performance characteristics of chirped-pulse regenerative amplification. Full article
(This article belongs to the Special Issue High-Power Solid-State Laser Technology and Its Applications)
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10 pages, 2502 KiB  
Article
Passive Phase Locking Coherent Combination of Solid-State Lasers through Stimulated Brillouin Scattering Effect
by Yu Yu, Kai Li, Changyu Song, Hengzhe Yu, Di Wu, Zhipeng Xu, Yulei Wang and Zhiwei Lu
Photonics 2023, 10(10), 1098; https://doi.org/10.3390/photonics10101098 - 29 Sep 2023
Viewed by 1206
Abstract
The stimulated Brillouin scattering (SBS) effect, a new approach to the combination of solid-state lasers, can be actualized via coherent synthesis. In this paper, a solid-state laser based on SBS passive phase locking, utilizing the master oscillator power amplifier (MOPA) structure at the [...] Read more.
The stimulated Brillouin scattering (SBS) effect, a new approach to the combination of solid-state lasers, can be actualized via coherent synthesis. In this paper, a solid-state laser based on SBS passive phase locking, utilizing the master oscillator power amplifier (MOPA) structure at the front end of the lasers, provides the amplification of the Stokes light subsequently generated. In order to reduce the influence of thermal effects on beam quality, beam-split amplification has been adopted with the same phase locking used by the back injection of the Stokes pulse. With the advantage of the combined scheme, the energy extraction efficiency of SBS coherent combination can be reached at 91.8% with coherent fringe visibility of 83%. Therefore, it provides a new way to improve the brightness through realizing the coherent combination of multi-channel solid-state lasers. Full article
(This article belongs to the Special Issue High-Power Solid-State Laser Technology and Its Applications)
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10 pages, 2454 KiB  
Communication
Optical Tunable Frequency-Doubling OEO Using a Chirped FBG Based on Orthogonally Polarized Double Sideband Modulation
by Haiyang Wang, Beilei Wu, Haoran Zhou, Wensheng Wang and Guangluan Xu
Photonics 2023, 10(9), 1002; https://doi.org/10.3390/photonics10091002 - 1 Sep 2023
Cited by 2 | Viewed by 1210
Abstract
We propose and experimentally demonstrate a tunable frequency-doubling optoelectronic oscillator (FD-OEO) based on a single-bandpass dispersion-induced microwave photonic filter (MPF) consisting of a Mach–Zehnder modulator (MZM), a linearly chirped fiber Bragg grating and polarization-multiplexed dual-loop. Thanks to the polarization dependence of the MZM, [...] Read more.
We propose and experimentally demonstrate a tunable frequency-doubling optoelectronic oscillator (FD-OEO) based on a single-bandpass dispersion-induced microwave photonic filter (MPF) consisting of a Mach–Zehnder modulator (MZM), a linearly chirped fiber Bragg grating and polarization-multiplexed dual-loop. Thanks to the polarization dependence of the MZM, a special double sideband modulation is implemented where the optical carrier (OC) and subcarriers are orthogonally polarized. By simply tuning the PC in the OEO loop, the phase difference between the orthogonal polarization carrier and two sidebands can be controlled, and thus the center frequency of the fundamental OEO can be tuned. Furthermore, a PC and a polarizer are placed outside the OEO to achieve optical carrier suppression (OCS) modulation, which ensures that a frequency-tunable microwave signal at the second-harmonic frequency is generated. In the experiment, a fundamental frequency signal with tunable frequency from 3.6 to 6.85 GHz and FD-OEO with a tunable frequency range from 7.2 to 13.7 GHz are generated. Full article
(This article belongs to the Special Issue High-Power Solid-State Laser Technology and Its Applications)
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