Recent Progress in Ultrafast Laser

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

Deadline for manuscript submissions: 30 June 2024 | Viewed by 1169

Special Issue Editors

Space photoelectric Technology Institute, Changchun University of Science and Technology, Changchun 130022, China
Interests: mode-locked fiber lasers; nonlinear fiber optics; all-optical processing; free-space optical communication; micro photonics device
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Guest Editor
College of Electronics and Information Engineering, Shenzhen University, Shenzhen 518060, China
Interests: nonlinear fiber optics; optical solitons; optical signal processing; optics communications; mode-locked fiber lasers; vector soliton fiber laser; all optical regeneration

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Guest Editor
College of Physics, Hebei Key Laboratory of Photophysics Research and Application, Hebei Normal University, Shijiazhuang 050024, China
Interests: ultrafast fiber lasers; spatiotemporal mode locking; Mamyshev oscillator; fiber optics components; wavelength filtering devices; nonlinear optics; optical solitons

Special Issue Information

Dear Colleagues,

Recent progress in ultrafast lasers has greatly improved the accuracy and effectiveness of precision machining, measurement and other industrial technologies. It has also extended to emergent fields such as optical frequency comb and attosecond optics. To further boost the impact of this exciting and rapidly evolving field, the Guest Editors encourage the submission of new contributions with novel results and research solutions for a new Special Issue entitled “Recent Progress in Ultrafast Laser”. Topics of interest for this Special Issue include, but are not limited to, the following:

  • Ultrafast lasers and applications;
  • Mode-locked lasers;
  • Optical solitons;
  • High-energy ultrashort pulse generation and amplification;
  • Nonlinear optics;
  • Ultrafast photonic devices;
  • Attosecond optics;
  • Optical signal processing;
  • Ultrafast phenomenon and dynamics.

Dr. Wanzhuo Ma
Dr. Yufeng Song
Dr. Xingliang Li
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Photonics is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • lasers
  • ultrashort pulse
  • mode-locked laser
  • soliton
  • nonlinear optics
  • photonics

Published Papers (1 paper)

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Research

11 pages, 2857 KiB  
Article
Generation and Dynamics of Multiple Pulses in an Ultrafast Fiber Laser with a Single-Mode Fiber–Graded-Index Multimode Fiber–Single-Mode Fiber-Based Saturable Absorber
by Yatao Yang, Qiong Zeng, Yanzhao Yang, Geguo Du, Jianhua Ji, Yufeng Song, Zhenhong Wang and Ke Wang
Photonics 2024, 11(1), 52; https://doi.org/10.3390/photonics11010052 - 04 Jan 2024
Viewed by 921
Abstract
In this study, we have investigated the evolution process and dynamic characteristics of a multi-pulse regime in an erbium-doped fiber ring laser based on a single-mode fiber–graded-index multimode fiber–single-mode fiber (SMF-GIMF-SMF) structure as an optical modulator. By utilizing the excellent nonlinear optical absorption [...] Read more.
In this study, we have investigated the evolution process and dynamic characteristics of a multi-pulse regime in an erbium-doped fiber ring laser based on a single-mode fiber–graded-index multimode fiber–single-mode fiber (SMF-GIMF-SMF) structure as an optical modulator. By utilizing the excellent nonlinear optical absorption of the SMF-GIMF-SMF (SMS) device with a modulation depth of ~8.68%, stable single-pulse mode locking at the frequency of 9.84 MHz can be readily observed at low pump power. In addition, the single-pulse operation can evolve into a multiple-pulse regime on account of the peak-power-clamping effect via suitably raising the pump power and carefully regulating the polarization state. Further, the single-shot temporal evolution of multiple pulses is monitored, indicating that this state shows unique and interesting temporal characteristics with variable pulse separations and inconsistent pulse intensities, which, as far as we know, is the first such observation in ultrafast fiber lasers. Additionally, this study, based on the time-stretch dispersive Fourier transformation method, suggests that these multiple pulses consist of chaotic wave envelopes with erratic intensities and changeable pulse energy. We believe that these findings have profound implications for revealing fascinating nonlinear pulse dynamics in ultrafast fiber optics. Full article
(This article belongs to the Special Issue Recent Progress in Ultrafast Laser)
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