检索结果-内蒙古大学图书馆

nonlinear pulse compression of an all-normal-dispersion Yb-fiber laser by a single-mode fiber amplifier

OPTICAL ENGINEERING 2020年第10期59卷

作者： Gu, Xiaorong Cao, Xinru Li, Yao Chen, Haidong Liu, Youwen Nanjing Univ Aeronaut & Astronaut Coll Sci Nanjing Peoples R China Nanjing Univ Sch Elect Sci & Engn Nanjing Peoples R China

We have successfully compressed the pulse duration of an all-normal-dispersion (ANDi) Yb-fiber laser to sub-100 fs by a single-mode nonlinear fiber amplifier. Through optimizing the input power, prechirp, and the pump power of the amplifier, the pulse duration of the ANDi Yb-fiber laser is compressed to 68 fs when a 2.5-m active fiber is used, although for a 3.5-m active fiber, the pulse duration of the laser can be compressed to 58 fs. We have also shown that a low relative intensity noise is maintained within the nonlinear amplification process. The experimental results prove this ultrashort-pulse-duration and low-noise laser source with moderate output power can be a good candidate for frequency comb, multiphoton imaging, coherent Raman spectroscopy, and other applications. (C) 2020 Society of Photo-Optical Instrumentation Engineers (SPIE)

关键词： ultrashort fiber laser nonlinear pulse compression fiber amplifier

来源：评论

学校读者我要写书评

暂无评论

Tm:fiber CPA driven nonlinear pulse compression stage delivering multi-GW, sub-10 fs pulses at 20 W of average power 16

Tm:fiber CPA driven nonlinear pulse compression stage delive...

引用

Conference on Fiber Lasers XVI - Technology and Systems

作者： Gebhardt, Martin Gaida, Christian Heuermann, Tobias Jauregui, Cesar Antonio-Lopez, Jose Schulzgen, Axel Amezcua-Correa, Rodrigo Rothhardt, Jan Limpert, Jens Friedrich Schiller Univ Jena Abbe Ctr Photon Inst Appl Phys Albert Einstein Str 15 D-07745 Jena Germany Helmholtz Inst Jena Frobelstieg 3 D-07743 Jena Germany Univ Cent Florida Coll Opt & Photon CREOL Orlando FL 32816 USA Fraunhofer Inst Appl Opt & Precis Engn Jena Germany

ISBN: (纸本)9781510624375

We report on the generation of 102 mu J-, sub2 cycle pulses with several GW of peak power centered at 1.73 jam wavelength. The intense fewcycle source features 8.8 fs pulse duration (fullwidth at half maximum, FWHM). It is operated at 196 kHz pulse repetition rate and provides a record average power of 20 W. This result is enabled by the combination of two average power scalable concepts: direct emission from an ultrafast Tm-doped fiber laser system and nonlinear pulse compression in a gasfilled antiresonant hollowcore fiber. Ultrafast Tm-doped fiber lasers are scalable to kWlevel average power, which emphasizes the great potential of this approach for driving high cut-off HHG at high repetition rates.

关键词： nonlinear pulse compression nonlinear broadening fiber laser mid-IR laser

来源：评论

学校读者我要写书评

暂无评论

nonlinear pulse compression stage delivering 43-W few-cycle pulses with GW peak-power at 2-μm wavelength 15

Nonlinear pulse compression stage delivering 43-W few-cycle ...

引用

Conference on Fiber Lasers XV - Technology and Systems

作者： Gebhardt, Martin Gaida, Christian Heuermann, T. Stutzki, F. Jauregui, C. Antonio-Lopez, J. Schulzgen, A. Amezcua-Correa, R. Tuennermann, A. Limpert, J. Friedrich Schiller Univ Jena Abbe Ctr Photon Inst Appl Phys Albert Einstein Str 15 D-07745 Jena Germany Helmholtz Inst Jena Frobelstieg 3 D-07743 Jena Germany Univ Cent Florida Coll Opt & Photon CREOL Orlando FL 32816 USA Fraunhofer Inst Appl Opt & Precis Engn Jena Germany

ISBN: (纸本)9781510615106;9781510615090

In this contribution we demonstrate the nonlinear pulse compression of an ultrafast thulium-doped fiber laser down to 14 fs FWHM duration (sub-3 optical cycles) at a record average power of 43 W and 34.5 mu J pulse energy. To the best of our knowledge, we present the highest average power few-cycle laser source at 2 mu m wavelength. This performance level in combination with GW-class peak power makes our laser source extremely interesting for driving high-harmonic generation or for generating mid-infrared frequency combs via intra-pulse frequency down-conversion at an unprecedented average power. The experiments were enabled by an ultrafast thulium-doped fiber laser delivering 110 fs pulses at high repetition rates, and an argon gas-filled antiresonant hollow-core fiber (ARHCF) with excellent transmission and weak anomalous dispersion, leading to the self-compression of the pulses. We have shown that ARHCFs are well-suited for nonlinear pulse compression around 2 mu m wavelength and that this concept features excellent power handling capabilities. Based on this result, we discuss the next steps for energy and average power scaling including upscaling the fiber dimensions in order to fully exploit the capabilities of our laser system, which can deliver several GW of peak power. This way, a 100 W-class laser source with mJ-level few-cycle pulses at 2 mu m wavelength is feasible in the near future.

关键词： nonlinear pulse compression nonlinear broadening fiber laser mid-IR laser

来源：评论

学校读者我要写书评

暂无评论

nonlinear pulse combining and compression using twisted hexagonal multi-core fibers

Nonlinear pulse combining and compression using twisted hexa...

引用

International Conference on Laser Optics (ICLO)

作者： Chekhovskoy, I. S. Shtyrina, O. V. Rubenchik, A. M. Wabnitz, S. Fedoruk, M. P. Novosibirsk State Univ Novosibirsk 630090 Russia RAS SB Inst Computat Technol Novosibirsk 630090 Russia Lawrence Livermore Natl Lab Livermore CA 94550 USA Sapienza Univ Rome Dipartimento Ingn Informaz Elettron & Telecomunic Rome Italy

We demonstrate numerically and analytically that the twisting of the 7-core hexagonal fiber leads to an increase in the efficiency of pulse combining and to a reduction of the distance along the fiber to the combining... 详细信息

ISBN: (纸本)9781728152332

关键词： multi-core fibers nonlinear pulse combining nonlinear pulse compression twisted fibers

来源：评论

学校读者我要写书评

暂无评论

High-average power, 4 GW pulses with sub-8 optical cycles from a Tm-doped fiber laser driven nonlinear pulse compression stage 14

High-average power, 4 GW pulses with sub-8 optical cycles fr...

引用

Conference on Fiber Lasers XIV - Technology and Systems

作者： Gebhardt, Martin Gaida, Christian Stutzki, Fabian Haedrich, Steffen Jauregui, Cesar Limpert, Jens Tuennermann, Andreas Friedrich Schiller Univ Jena Abbe Ctr Photon Inst Appl Phys Albert Einstein Str 15 D-07745 Jena Germany Helmholtz Institute Jena Frobelstieg 3 D-07743 Jena Germany Act Fiber Syst GmbH Wildenbruchstr 15 D-07743 Jena Germany Fraunhofer Inst Appl Opt & Precis Engn Jena Germany

ISBN: (数字)9781510606081

ISBN: (纸本)9781510606074;9781510606081

Thulium-doped fiber lasers are an attractive concept for the generation of mid-infrared (mid-IR) ultrashort pulses around 2 mu m wavelength with an unprecedented average power. To date, these systems deliver > 150 W of average power and GW-class pulse peak powers with output pulse durations of a few hundreds of fs. As some applications can greatly benefit from even shorter pulse durations, the spectral broadening and subsequent temporal pulse compression can be a key enabling technology for high average power few-cycle laser sources around 2 mu m wavelength. In this contribution we demonstrate the nonlinear compression of ultrashort pulses from a high repetition rate Tm-doped fiber laser using a nitrogen gas-filled hollow capillary. pulses with 4 GW peak power, 46 fs FWHM duration at an average power of 15.4 W have been achieved. This is, to the best of our knowledge, the first 2 mu m laser delivering intense, GW-pulses with sub 50-fs pulse duration and an average power of > 10 W. Based on this result, we discuss the next steps towards a 100 W-level, GW-class few-cycle mid-IR laser.

关键词： nonlinear pulse compression nonlinear broadening fiber laser mid-IR laser

来源：评论

学校读者我要写书评

暂无评论

Towards direct nonlinear compression of long-pulse lasers to the femtosecond regime 34

Towards direct nonlinear compression of long-pulse lasers to...

引用

2025 Conference on Solid State Lasers

作者： Beaufort, Gaspard Jimenez, Nayla Hariton, Victor Tajalli, Ayhan Hartl, Ingmar Seidel, Marcus Deutsches Elektronen Synchrotron DESY Notkestr 85 D-22607 Hamburg Germany Ecole Normale Superieure Lyon Dept Phys F-69364 Lyon France Helmholtz Inst Jena Frobelstieg 3 D-07743 Jena Germany DGSI Helmholtzzentrum Schwerionenforschnung GmbH Planckstr 1 D-64291 Darmstadt Germany

ISBN: (纸本)9781510684300;9781510684317

A concept to efficiently transfer energetic near-nanosecond pulses to the sub-picosecond scale is proposed: Pre-shaped pulses are sent into multi-mirror multi-pass cells which enable km-scale nonlinear propagation. In this way, the initial pulse bandwidth can be extended by more than three orders of magnitude. To verify the concept, spectral broadening of 100-mJ, 300-ps pulses to a sub-300 fs transform-limit in a 1-m diameter multi-pass cell was simulated. Moreover, an 11-mirror cell was set-up and 300 MW peak power pulses were spectrally broadened in air over 297 passes. The experiments showed that excellent beam quality and high-power transmission can be obtained in the investigated multi-mirror arrangements. The concept presents a new gateway for industrial mature, high-power lasers to the ultrafast regime and is, for instance, attractive for high repetition rate laser-particle acceleration applications.

关键词： Ultrafast lasers nonlinear pulse compression multi-pass cells

来源：评论

学校读者我要写书评

暂无评论

Harnessing Ultra-Intense Long-Wave Infrared Lasers: New Frontiers in Fundamental and Applied Research

引用

PHOTONICS 2025年第3期12卷 221-221页

作者： Pogorelsky, Igor V. Polyanskiy, Mikhail N. Brookhaven Natl Lab Upton NY 11973 USA

This review explores two main topics: the state-of-the-art and emerging capabilities of high-peak-power, ultrafast (picosecond and femtosecond) long-wave infrared (LWIR) laser technology based on CO2 gas laser amplifiers, and the current and advanced scientific applications of this laser class. The discussion is grounded in expertise gained at the Accelerator Test Facility (ATF) of Brookhaven National Laboratory (BNL), a leading center for ultrafast, high-power CO2 laser development and a National User Facility with a strong track record in high-intensity physics experiments. We begin by reviewing the status of 9-10 mu m CO2 laser technology and its applications, before exploring potential breakthroughs, including the realization of 100 terawatt femtosecond pulses. These advancements will drive ongoing research in electron and ion acceleration in plasma, along with applications in secondary radiation sources and atmospheric energy transport. Throughout the review, we highlight how wavelength scaling of physical effects enhances the capabilities of ultra-intense lasers in the LWIR spectrum, expanding the frontiers of both fundamental and applied science.

关键词： ultra-high intensity lasers long-wave infrared chirped pulse amplification nonlinear pulse compression laser interaction with matter laser plasma electron acceleration laser plasma ion acceleration inverse Compton scattering future collider directed energy

来源：评论

学校读者我要写书评

暂无评论

Ultraefficient on-chip supercontinuum generation: Bringing handheld sensing devices within reach 23

Ultraefficient on-chip supercontinuum generation: Bringing h...

引用

Conference on nonlinear Frequency Generation and Conversion - Materials and Devices XXIII

作者： Zia, H. Snyder, B. W. Mauser, C. Sperling, J. Superlight Photon BV Veldmaat 10 NL-7522NM Enschede Netherlands Menlo Syst GmbH Bunsenstr 5 D-82152 Martinsried Germany

ISBN: (纸本)9781510669994;9781510669987

Truly portable supercontinuum sources with high spectral bandwidths are poised to advance applications such as medical imaging, chemical sensing, or light detection and ranging. Yet, limited efficiencies of conventional supercontinuum generation (SCG) schemes typically require relatively high pulse energies from bulky ultrafast lasers. We discuss a commercially emerging approach to SCG based on patterned sign-alternating dispersion (PSD) waveguide chips. It is based on alternately subjecting femtosecond seed laser pulses to normal and anomalous dispersion regimes in a highly controlled fashion. PSD waveguides decrease input power requirements down to factors on the order of 1/1000 as compared to other approaches and imply a disruptive reduction in power consumption, size, and costs of required seed laser light sources. We illustrate the real-world performance of PSD waveguide chips operating in tandem with ultra-compact femtosecond fiber lasers, and give an illustrative example of portable near-infrared absorption spectroscopy.

关键词： Photonic Integrated Circuits Highly Efficient Supercontinuum Generation Silicon Nitride Femtosecond fiber lasers portable wide-bandwidth laser nonlinear photonics nonlinear pulse compression laser spectroscopy

来源：评论

学校读者我要写书评

暂无评论

High power, high repetition rate laser-based sources for attosecond science

引用

JOURNAL OF PHYSICS-PHOTONICS 2022年第3期4卷 032001页

作者： Furch, F. J. Witting, T. Osolodkov, M. Schell, F. Schulz, C. P. Vrakking, M. J. J. Max Born Inst Nichtlineare Opt & Kurzzeit Spektro Berlin Germany

Within the last two decades attosecond science has been established as a novel research field providing insights into the ultrafast electron dynamics that follows a photoexcitation or photoionization process. Enabled by technological advances in ultrafast laser amplifiers, attosecond science has been in turn, a powerful engine driving the development of novel sources of intense ultrafast laser pulses. This article focuses on the development of high repetition rate laser-based sources delivering high energy pulses with a duration of only a few optical cycles, for applications in attosecond science. In particular, a high power, high repetition rate optical parametric chirped pulse amplification system is described, which was developed to drive an attosecond pump-probe beamline targeting photoionization experiments with electron-ion coincidence detection at high acquisition rates.

关键词： ultrafast optics attosecond science high repetition rate OPCPA nonlinear pulse compression few-cycle pulses

来源：评论

学校读者我要写书评

暂无评论

nonlinear chirped pulse amplification for a 100-W-class GHz femtosecond all-fiber laser system at 1.5μm

引用

High Power Laser Science and Engineering 2023年第4期11卷 55-65页

作者： Yiheng Fan Hao Xiu Wei Lin Xuewen Chen Xu Hu Wenlong Wang Junpeng Wen Hao Tian Molei Hao Chiyi Wei Luyi Wang Xiaoming Wei Zhongmin Yang School of Physics and Optoelectronics State Key Laboratory of Luminescent Materials and DevicesGuangdong Engineering Technology Research and Development Center of Special Optical Fiber Materials and DevicesGuangdong Provincial Key Laboratory of Fiber Laser Materials and Applied TechniquesSouth China University of TechnologyGuangzhouChina Research Institute of Future Technology South China Normal UniversityGuangzhouChina

In this work,we present a high-power,high-repetition-rate,all-fiber femtosecond laser system operating at 1.5μ*** all-fiber laser system can deliver femtosecond pulses at a fundamental repetition rate of 10.6 GHz with an average output power of 106.4 W–the highest average power reported so far from an all-fiber femtosecond laser at 1.5μm,to the best of our *** utilizing the soliton-effect-based pulse compression effect with optimized pre-chirping dispersion,the amplified pulses are compressed to 239 fs in an all-fiber *** by such a high-power ultrafast fiber laser system,we further explore the nonlinear interaction among transverse modes LP01,LP11 and LP21 that are expected to potentially exist in fiber laser systems using large-mode-area *** intermodal modulational instability is theoretically investigated and subsequently identified in our *** a high-power all-fiber ultrafast laser without bulky free-space optics is anticipated to be a promising laser source for applications that specifically require compact and robust operation.

关键词： high-power femtosecond fiber laser high repetition rate intermodal modulational instability nonlinear pulse compression

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：