High‐Power Laser Systems

Abstract

High‐power laser sources are widely used in industrial precision processing and act as a new platform for strong‐field physics research using peak power over petawatt. This review focuses on realizing high‐energy solid‐state disk and slab systems and the nonlinear‐suppression strategies for high‐power fiber systems using the functional fibers. First, the implementations and enabling technologies of the solid‐state lasers for increasing peak power from gigawatt to petawatt are reviewed. Then the mechanisms and suppression strategies of the deterioration effects (including stimulated Raman scattering, stimulated Brillouin scattering, and transverse mode instability) in various fiber amplifiers are analyzed. At the same time, the mechanism and achievements of the current functional fibers are introduced. Finally, the challenges and perspectives of high‐power solid‐state and fiber amplifiers are summarized.

Arbitrary Time Shaping of Broadband Low-Coherence Light Based on Optical Parametric Amplification

“…The experiments showed that the time-shaping contrast of the shaped signal pulse can be controlled by changing the intensity and time waveform contrast of the pump, illustrating the flexibility and controllability of the OPA-based time-shaping scheme in ASE broadband arbitrary time shaping. The traditional EOM time-shaping scheme is an M-Z interferometer, which may cause time-domain variations in the pulse waveform and introduce high-frequency modulation, which can threaten the safety of high-power physics experimental systems and reduce their output capability [30]. To demonstrate that the OPA-based time-shaping scheme can achieve a smooth time waveform, a square pump pulse was used to amplify the broadband low-coherence signal.…”

Arbitrary Time Shaping of Broadband Low-Coherence Light Based on Optical Parametric Amplification

“…The experiments showed that the time-shaping contrast of the shaped signal pulse can be controlled by changing the intensity and time waveform contrast of the pump, illustrating the flexibility and controllability of the OPA-based time-shaping scheme in ASE broadband arbitrary time shaping. The traditional EOM time-shaping scheme is an M-Z interferometer, which may cause time-domain variations in the pulse waveform and introduce high-frequency modulation, which can threaten the safety of high-power physics experimental systems and reduce their output capability [30]. To demonstrate that the OPA-based time-shaping scheme can achieve a smooth time waveform, a square pump pulse was used to amplify the broadband low-coherence signal.…”

3D printing for optogenetic devices in neuroengineering applications from precise in vitro control to efficient in vivo implant systems

“…Representative companies for these categories include Prizmatix (USA) and Thinkertech (China). Conventional optical fiber systems provide stable and highintensity light output [207] . However, they require physical tethering to external equipment, which severely interferes with natural behavior [208] .…”

Stimulated Emission from 2D CdSe/CdS Nanoplatelets Integrated in a Liquid-Core Fiber

“… Such fibers form the basis of modern data communication and active fibers doped with trivalent lanthanide ions enable kW-class continuous-wave (CW) or high-energy pulsed laser systems. However, pronounced multiphonon quenching of fused silica prevents visible lasing from lanthanide-doped fibers and, in turn, makes nanocrystals a promising wavelength-tunable laser gain medium. While direct doping of colloidal nanocrystals into fused silica cannot be achieved at the extreme temperatures above 2000 °C required for fiber fabrication, liquid-core fibers (LCFs) overcome their solid counterparts’ disadvantage and open a promising path for the photonic integration of the nanocrystals.…”

Arbitrary Time Shaping of Broadband Low-Coherence Light Based on Optical Parametric Amplification

“…The experiments showed that the time-shaping contrast of the shaped signal pulse can be controlled by changing the intensity and time waveform contrast of the pump, illustrating the flexibility and controllability of the OPA-based time-shaping scheme in ASE broadband arbitrary time shaping. The traditional EOM time-shaping scheme is an M-Z interferometer, which may cause time-domain variations in the pulse waveform and introduce high-frequency modulation, which can threaten the safety of high-power physics experimental systems and reduce their output capability [30]. To demonstrate that the OPA-based time-shaping scheme can achieve a smooth time waveform, a square pump pulse was used to amplify the broadband low-coherence signal.…”

3D printing for optogenetic devices in neuroengineering applications from precise in vitro control to efficient in vivo implant systems

“…Representative companies for these categories include Prizmatix (USA) and Thinkertech (China). Conventional optical fiber systems provide stable and highintensity light output [207] . However, they require physical tethering to external equipment, which severely interferes with natural behavior [208] .…”

Stimulated Emission from 2D CdSe/CdS Nanoplatelets Integrated in a Liquid-Core Fiber

“… Such fibers form the basis of modern data communication and active fibers doped with trivalent lanthanide ions enable kW-class continuous-wave (CW) or high-energy pulsed laser systems. However, pronounced multiphonon quenching of fused silica prevents visible lasing from lanthanide-doped fibers and, in turn, makes nanocrystals a promising wavelength-tunable laser gain medium. While direct doping of colloidal nanocrystals into fused silica cannot be achieved at the extreme temperatures above 2000 °C required for fiber fabrication, liquid-core fibers (LCFs) overcome their solid counterparts’ disadvantage and open a promising path for the photonic integration of the nanocrystals.…”

Arbitrary Time Shaping of Broadband Low-Coherence Light Based on Optical Parametric Amplification

“…The experiments showed that the time-shaping contrast of the shaped signal pulse can be controlled by changing the intensity and time waveform contrast of the pump, illustrating the flexibility and controllability of the OPA-based time-shaping scheme in ASE broadband arbitrary time shaping. The traditional EOM time-shaping scheme is an M-Z interferometer, which may cause time-domain variations in the pulse waveform and introduce high-frequency modulation, which can threaten the safety of high-power physics experimental systems and reduce their output capability [30]. To demonstrate that the OPA-based time-shaping scheme can achieve a smooth time waveform, a square pump pulse was used to amplify the broadband low-coherence signal.…”

3D printing for optogenetic devices in neuroengineering applications from precise in vitro control to efficient in vivo implant systems

“…Representative companies for these categories include Prizmatix (USA) and Thinkertech (China). Conventional optical fiber systems provide stable and highintensity light output [207] . However, they require physical tethering to external equipment, which severely interferes with natural behavior [208] .…”

Stimulated Emission from 2D CdSe/CdS Nanoplatelets Integrated in a Liquid-Core Fiber

“… Such fibers form the basis of modern data communication and active fibers doped with trivalent lanthanide ions enable kW-class continuous-wave (CW) or high-energy pulsed laser systems. However, pronounced multiphonon quenching of fused silica prevents visible lasing from lanthanide-doped fibers and, in turn, makes nanocrystals a promising wavelength-tunable laser gain medium. While direct doping of colloidal nanocrystals into fused silica cannot be achieved at the extreme temperatures above 2000 °C required for fiber fabrication, liquid-core fibers (LCFs) overcome their solid counterparts’ disadvantage and open a promising path for the photonic integration of the nanocrystals.…”