Delivery of Nearly Diffraction-Limited Picosecond Laser Pulses in the Air-Filled Anti-Resonant Hollow-Core Fiber at 1 μm Wavelength

We demonstrate the damage-free delivery of nearly diffraction-limited picosecond laser pulses at 1064 nm with a maximum peak power of 3.5 MW in a 5 m air-filled anti-resonant hollow-core fiber (AR-HCF). In the air-filled AR-HCF, the transmission efficiency of picosecond pulses is degraded due to sti...

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Main Authors: Leben Liang, Jingzhao Guan, Xinyue Zhu, Yazhou Wang, Dakun Wu, Fei Yu, Ying Han
Format: Article
Language:English
Published: MDPI AG 2023-04-01
Series:Photonics
Subjects:
Online Access:https://www.mdpi.com/2304-6732/10/4/416
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author Leben Liang
Jingzhao Guan
Xinyue Zhu
Yazhou Wang
Dakun Wu
Fei Yu
Ying Han
author_facet Leben Liang
Jingzhao Guan
Xinyue Zhu
Yazhou Wang
Dakun Wu
Fei Yu
Ying Han
author_sort Leben Liang
collection DOAJ
description We demonstrate the damage-free delivery of nearly diffraction-limited picosecond laser pulses at 1064 nm with a maximum peak power of 3.5 MW in a 5 m air-filled anti-resonant hollow-core fiber (AR-HCF). In the air-filled AR-HCF, the transmission efficiency of picosecond pulses is degraded due to stimulated Raman scattering for the incident peak power above 3.59 MW. The temporal compression of pulses is also observed in the air-filled AR-HCF, where the self-phase modulation plays a key role in the anomalous dispersion region. By vacuuming the air in the core, a nearly constant coupling efficiency of 77% is achieved through the 5 m AR-HCF free of nonlinear effects, with M<sup>2</sup> of the output beam less than 1.17.
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spelling doaj.art-63b8bb1b3f9441ef8d8897c3462fcbfd2023-11-17T20:57:45ZengMDPI AGPhotonics2304-67322023-04-0110441610.3390/photonics10040416Delivery of Nearly Diffraction-Limited Picosecond Laser Pulses in the Air-Filled Anti-Resonant Hollow-Core Fiber at 1 μm WavelengthLeben Liang0Jingzhao Guan1Xinyue Zhu2Yazhou Wang3Dakun Wu4Fei Yu5Ying Han6Key Laboratory of Materials for High Power Laser, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, ChinaKey Laboratory of Materials for High Power Laser, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, ChinaKey Laboratory of Materials for High Power Laser, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, ChinaKey Laboratory of Materials for High Power Laser, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, ChinaSchool of Physics and Optoelectronic Engineering, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, ChinaKey Laboratory of Materials for High Power Laser, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, ChinaKey Laboratory for Special Fiber and Fiber Sensor of Hebei Province, School of Information Science and Engineering, Yanshan University, Qinhuangdao 066004, ChinaWe demonstrate the damage-free delivery of nearly diffraction-limited picosecond laser pulses at 1064 nm with a maximum peak power of 3.5 MW in a 5 m air-filled anti-resonant hollow-core fiber (AR-HCF). In the air-filled AR-HCF, the transmission efficiency of picosecond pulses is degraded due to stimulated Raman scattering for the incident peak power above 3.59 MW. The temporal compression of pulses is also observed in the air-filled AR-HCF, where the self-phase modulation plays a key role in the anomalous dispersion region. By vacuuming the air in the core, a nearly constant coupling efficiency of 77% is achieved through the 5 m AR-HCF free of nonlinear effects, with M<sup>2</sup> of the output beam less than 1.17.https://www.mdpi.com/2304-6732/10/4/416anti-resonant hollow-core fiberlaser deliverystimulated Raman scatteringself-phase modulationfiber dispersion
spellingShingle Leben Liang
Jingzhao Guan
Xinyue Zhu
Yazhou Wang
Dakun Wu
Fei Yu
Ying Han
Delivery of Nearly Diffraction-Limited Picosecond Laser Pulses in the Air-Filled Anti-Resonant Hollow-Core Fiber at 1 μm Wavelength
Photonics
anti-resonant hollow-core fiber
laser delivery
stimulated Raman scattering
self-phase modulation
fiber dispersion
title Delivery of Nearly Diffraction-Limited Picosecond Laser Pulses in the Air-Filled Anti-Resonant Hollow-Core Fiber at 1 μm Wavelength
title_full Delivery of Nearly Diffraction-Limited Picosecond Laser Pulses in the Air-Filled Anti-Resonant Hollow-Core Fiber at 1 μm Wavelength
title_fullStr Delivery of Nearly Diffraction-Limited Picosecond Laser Pulses in the Air-Filled Anti-Resonant Hollow-Core Fiber at 1 μm Wavelength
title_full_unstemmed Delivery of Nearly Diffraction-Limited Picosecond Laser Pulses in the Air-Filled Anti-Resonant Hollow-Core Fiber at 1 μm Wavelength
title_short Delivery of Nearly Diffraction-Limited Picosecond Laser Pulses in the Air-Filled Anti-Resonant Hollow-Core Fiber at 1 μm Wavelength
title_sort delivery of nearly diffraction limited picosecond laser pulses in the air filled anti resonant hollow core fiber at 1 μm wavelength
topic anti-resonant hollow-core fiber
laser delivery
stimulated Raman scattering
self-phase modulation
fiber dispersion
url https://www.mdpi.com/2304-6732/10/4/416
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