Ultrafast Laser Science and Advanced Technologies

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 April 2024 | Viewed by 743

Special Issue Editor


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Guest Editor
1. Helmholtz-Institute Jena, Jena, Germany
2. GSI Helmholtzzentrum für Schwerionenforschung GmbH, Darmstadt, Germany
3. Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany
Interests: lasers; ultrashort pulses; pulse compression; optical parametric processes; time-resolved measurements

Special Issue Information

Dear Colleagues,

Ultrashort light pulses are indispensable in micromachining, metrology and medical instrumentation, amongst other applications. Likewise, outstanding research closely linked to the field has been recognized by numerous prestigious awards, for example the Nobel Prizes for femtochemistry (Ahmed Zewail 1999), optical frequency combs (John L. Hall and Theodor Hänsch 2005) and chirped pulse amplification (Donna Strickland and Gerard Mourou 2018). Ultrashort light pulses are subject of an extraordinary success story. It began in the early 1960s, shortly after the invention of the laser, and has not lost any of its excitement. Novel technologies are developed and new applications emerge, ranging from fundamental science to market-ready products.

This Special Issue targets a collection of innovative research papers that cover the great variety of ultrafast laser science and technology. The topics include, but are not limited to:

  • Generation and amplification of ultrashort pulses;
  • Solid-state and fiber ultrafast lasers;
  • Carrier-envelope phase stabilization and ultrafast frequency combs;
  • Ultrafast lasers at large-scale facilities;
  • Ultrafast secondary sources;
  • Characterization of ultrashort pulses;
  • Ultrafast nonlinear optics;
  • Spectroscopy and microscopy with ultrashort pulses;
  • Communications with ultrashort pulses;
  • Fundamental science with ultrafast lasers.

Dr. Marcus Seidel
Guest Editor

Manuscript Submission Information

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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

  • ultrafast lasers
  • ultrashort pulses
  • femtosecond
  • pump-probe
  • frequency combs
  • nonlinear optics
  • solitons
  • secondary sources
  • time-resolved
  • high-power

Published Papers (1 paper)

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Research

13 pages, 728 KiB  
Article
Measurement of Group Delay Ripples of Chirped Fiber Bragg Gratings for CPA Lasers, and Their Effect on Performance
by François Ouellette and Hui Wang
Photonics 2024, 11(4), 333; https://0-doi-org.brum.beds.ac.uk/10.3390/photonics11040333 - 02 Apr 2024
Viewed by 472
Abstract
The deleterious effect of group delay ripples (GDR) on the performance of a chirped fiber Bragg grating used as a stretcher in a chirped pulse amplification (CPA) laser is analyzed through simulations of CFBGs with various amounts of noise. We show that GDR [...] Read more.
The deleterious effect of group delay ripples (GDR) on the performance of a chirped fiber Bragg grating used as a stretcher in a chirped pulse amplification (CPA) laser is analyzed through simulations of CFBGs with various amounts of noise. We show that GDR with a standard deviation of less than one-half the transform-limited pulse duration are required for consistent good performance. We furthermore describe a simple method to measure the group delay response of such CFBGs written in polarization-maintaining fiber, using the beat spectrum of the reflections from the two polarization axes after passing through a polarizer. The method can be used to extract GDR, as well as the phase response of the CFBG, which is used to predict the pulse recompression performance of a CPA laser. The method is theoretically described, and we show that despite limitations on its spatial resolution, it can capture the most deleterious GDR. Experimental measurements of GDR as low as 161 fs in an actual CFBG are demonstrated using our method, indicating a resolution better than 50 fs and very good reproducibility, with pulse recompression performance in agreement with the measurement prediction. Full article
(This article belongs to the Special Issue Ultrafast Laser Science and Advanced Technologies)
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