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Special Issue "Advanced Fiber Laser"

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A special issue of Nanomaterials (ISSN 2079-4991). This special issue belongs to the section "Nanophotonics Materials and Devices".

Deadline for manuscript submissions: 30 April 2023 | Viewed by 3850

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Special Issue Editors

Dr. Pu Zhou

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Guest Editor

College of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha 410073, China
Interests: laser technology; laser material and component; beam combining; test and evaluation

Dr. Pengfei Ma

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Guest Editor

College of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha 410073, China
Interests: fiber laser and amplifier; laser optics; nonlinear fiber optics

Special Issue Information

Dear Colleagues,

There has been tremendous exciting advance in fiber laser and related field due to the development of the interdisciplinary that combines semiconductor, laser material, optical science, electronic engineering and so on, which has found and explored wide application in advanced manufacturing, sensing and measuring medical treatment, and research frontiers. Specifically, the innovation in designing, fabricating of nanomaterials, nanostructure and devices has enabled the performance scaling of fiber laser. This special issue aims to seek for the recent research progress in advanced fiber lasers, potential topics include, but are not limited to:

Fiber laser and amplifier
Functional fiber with nano/micro structure
Laser fiber and components
Nonlinear optics effect based on nanomaterials
Fiber laser enabled by nanomaterials
Advanced sensing and measuring system based on fiber laser
Laser field manipulation with nanomaterials

In this special issue, original research articles and reviews are welcome. We look forward to receiving your contributions.

Dr. Pu Zhou
Dr. Pengfei Ma
Guest Editors

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Keywords

fiber laser and amplifier
optical fiber
fiber component and device
nonlinear fiber optics
sensing and measuring
laser field manipulation

Published Papers (5 papers)

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Research

Open AccessArticle

Low-Threshold, Multiple High-Order Harmonics Fiber Laser Employing Cr₂Si₂Te₆ Saturable Absorber

and

Nanomaterials 2023, 13(6), 1038; https://doi.org/10.3390/nano13061038 - 14 Mar 2023

Viewed by 394

Abstract

Abundant research findings have proved the value of two-dimensional (2D) materials in the study of nonlinear optics in fiber lasers. However, there remains two problems: how to reduce the start-up threshold, and how to improve the damage threshold, of fiber lasers based on 2D materials. A 15.1 mW low-threshold mode-locked fiber laser, based on a Cr₂Si₂Te₆ saturable absorber (SA) prepared by the liquid-phase exfoliation method, is demonstrated successfully in this work. This provides a useful and economical method to produce SAs with low insertion loss and low saturation intensity. Besides, multiple high-order harmonics, from the fundamental frequency (12.6 MHz) to the 49th-order harmonic (617.6 MHz), mode-locked operations are recorded. The experimental results indicate the excellent potential of Cr₂Si₂Te₆ as an optical modulator in exploring the soliton dynamics, harmonic mode locking, and other nonlinear effects in fiber lasers. Full article

(This article belongs to the Special Issue Advanced Fiber Laser)

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Open AccessArticle

Multi-Pulse Bound Soliton Fiber Laser Based on MoTe₂ Saturable Absorber

and

Nanomaterials 2023, 13(1), 177; https://doi.org/10.3390/nano13010177 - 30 Dec 2022

Viewed by 629

Abstract

Bound solitons have become a hot topic in the field of nonlinear optics due to their potential applications in optical communication, information processing and radar systems. However, the trapping of the cascaded bound soliton is still a major challenge up to now. Here, we propose and experimentally demonstrate a multi-pulse bound soliton fiber laser based on MoTe₂ saturable absorber. In the experiment, MoTe₂ nanosheets were synthesized by chemical vapor deposition and transferred to the fiber taper by optical deposition. Then, by inserting the MoTe₂ saturable absorber into a ring cavity laser, the two-pulse, three-pulse and four-pulse bound solitons can be stably generated by properly adjusting the pump strength and polarization state. These cascaded bound solitons are expected to be applied to all-optical communication and bring new ideas to the study of soliton lasers. Full article

(This article belongs to the Special Issue Advanced Fiber Laser)

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Open AccessArticle

Femtosecond Er-Doped All-Fiber Laser with High-Density Well-Aligned Carbon-Nanotube-Based Thin-Film Saturable Absorber

Dmitriy A. Dvoretskiy

Stanislav G. Sazonkin

Viatcheslav N. Agafonov

Valery N. Khabashesku

and

Valeriy A. Davydov

Nanomaterials 2022, 12(21), 3864; https://doi.org/10.3390/nano12213864 - 02 Nov 2022

Viewed by 882

Abstract

We have studied the ultrafast saturation behavior of a high-density well-aligned single-walled carbon nanotubes saturable absorber (HDWA-SWCNT SA), obtained by a high-pressure and high-temperature treatment of commercially available single-wall carbon nanotubes (SWCNTs) and related it to femtosecond erbium-doped fiber laser performance. We have observed the polarization dependence of a nonlinear optical saturation, along with a low saturation energy level of <1 fJ, limited to the detector threshold used, and the ultrafast response time of <250 fs, while the modulation depth was approximately 12%. We have obtained the generation of ultrashort stretched pulses with a low mode-locking launching threshold of ~100 mW and an average output power of 12.5 mW in an erbium-doped ring laser with the hybrid mode-locking of a VDVA-SWNT SA in combination with the effects of nonlinear polarization evolution. Dechirped pulses with a duration of 180 fs were generated, with a repetition rate of about 42.22 MHz. The average output power standard deviation was about 0.06% RMS during 3 h of measurement. Full article

(This article belongs to the Special Issue Advanced Fiber Laser)

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Open AccessArticle

Cooling a Rotating Mirror Coupled to a Single Laguerre–Gaussian Cavity Mode Using Parametric Interactions

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Nanomaterials 2022, 12(20), 3701; https://doi.org/10.3390/nano12203701 - 21 Oct 2022

Viewed by 620

Abstract

We study the cooling of a rotating mirror coupled to a Laguerre–Gaussian (L–G) cavity mode, which is assisted by an optical parametric amplifier (OPA). It is shown that the presence of the OPA can significantly lower the temperature of the rotating mirror, which is very critical in the application of quantum physics. We also find that the increase in angular momentum has an influence on the cooling of the rotating mirror. Our results may provide a potential application in the determination of the orbital angular momentum of light fields and precision measurement. Full article

(This article belongs to the Special Issue Advanced Fiber Laser)

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Open AccessArticle

3.96 kW All-Fiberized Linearly Polarized and Narrow Linewidth Fiber Laser with Near-Diffraction-Limited Beam Quality

and

Nanomaterials 2022, 12(15), 2541; https://doi.org/10.3390/nano12152541 - 24 Jul 2022

Cited by 2 | Viewed by 764

Abstract

In this paper, we realize a 3.96 kW all-fiberized and polarization-maintained (PM) amplifier with narrow linewidth and near-diffraction-limited beam quality. Based on a master oscillator power amplifier (MOPA) configuration seeded with phase-modulated single-frequency laser, a 3.96 kW signal laser is achieved with a 3 dB linewidth of 0.62 nm at the pump power of 5.02 kW. At the maximum output power, the polarization extinction ratio (PER) is ~13.9 dB, and the beam quality (M² factor) is M²_x = 1.31, M²_y = 1.41. As far as we know, this is the maximum output power of PM narrow linewidth fiber laser with near-diffraction-limited beam quality and all-fiber format. Full article

(This article belongs to the Special Issue Advanced Fiber Laser)

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