Bragg Gratings for Optical Signal Processing

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Optics and Lasers".

Deadline for manuscript submissions: closed (31 December 2021) | Viewed by 5872

Special Issue Editors


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Guest Editor
Electronical Engineering, Sevilla University, Sevilla, Spain
Interests: optical signal processing; fiber Bragg grating; waveguide Bragg grating; photonic devices characterization; ultrafast pulse characterization; optical networks; fiber-optic communication systems; ultrafast photonics; all-fiber and integrated waveguide components and devices; optical sensors

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Guest Editor
Electronics, University of Alcalá, Alcala de Henares, Spain
Interests: ultrafast signal processors; fiber Bragg gratings (FBG); distributed optical sensors; nonlinear optics; optical signal characterization; frequency–time duality

Special Issue Information

Dear Colleagues, 

From the first demonstration of the formation of a permanent Bragg grating in an optical fiber in 1978 to the most recent proposals of fully reconfigurable waveguide Bragg gratings on a silicon-on-insulator platform, Bragg gratings (BGs) have continued to contribute to the development of new, energy-efficient, high-capacity, fully transparent all-optical networks for telecom and datacom applications. BGs are currently a key component for optical signal processing and are being widely used to increasing the transmission channel capacity, for secure quantum information processing, and for enhancing the performance of microwave photonics. They act as fundamental photonic signal processing units such as optical differentiators, optical integrators, Fourier transformers, Hilbert transformers, ultrafast pulse-shapers, true-time delay elements, and phase-shifters, among others.  

In this Special Issue, we invite submissions exploring the latest developments, applications, and new trends on Bragg gratings technology. Contributions can focus on, but not be limited to, grating design methodology, device fabrication and technology, grating synthesis tools, devices for ultrafast optical signal processing, devices for microwave photonics, Bragg gratings for photonics integrated circuits, reconfigurable Bragg gratings, programable Bragg gratings, and Bragg gratings applications, in general. Survey papers and reviews are also welcomed. 

Dr. Alejandro Carballar
Dr. María R. Fernández Ruiz
Guest Editors

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Keywords

  • fiber Bragg gratings
  • waveguide Bragg gratings
  • photosensitivity
  • silicon photonics
  • ultrafast optical signal processing
  • optical waveform generation
  • microwave photonics
  • photonic integrated circuits

Published Papers (3 papers)

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Research

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10 pages, 598 KiB  
Article
Quiescent Gap Solitons in Coupled Nonuniform Bragg Gratings with Cubic-Quintic Nonlinearity
by Afroja Akter, Md. Jahedul Islam and Javid Atai
Appl. Sci. 2021, 11(11), 4833; https://0-doi-org.brum.beds.ac.uk/10.3390/app11114833 - 25 May 2021
Cited by 9 | Viewed by 1367
Abstract
We study the stability characteristics of zero-velocity gap solitons in dual-core Bragg gratings with cubic-quintic nonlinearity and dispersive reflectivity. The model supports two disjointed families of gap solitons (Type 1 and Type 2). Additionally, asymmetric and symmetric solitons exist in both Type 1 [...] Read more.
We study the stability characteristics of zero-velocity gap solitons in dual-core Bragg gratings with cubic-quintic nonlinearity and dispersive reflectivity. The model supports two disjointed families of gap solitons (Type 1 and Type 2). Additionally, asymmetric and symmetric solitons exist in both Type 1 and Type 2 families. A comprehensive numerical stability analysis is performed to analyze the stability of solitons. It is found that dispersive reflectivity improves the stability of both types of solitons. Nontrivial stability boundaries have been identified within the bandgap for each family of solitons. The effects and interplay of dispersive reflectivity and the coupling coefficient on the stability regions are also analyzed. Full article
(This article belongs to the Special Issue Bragg Gratings for Optical Signal Processing)
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9 pages, 2837 KiB  
Article
A Compact Multifrequency Measurement System Based on an Integrated Frequency-Scanning Generator
by Nuannuan Shi, Tengfei Hao, Wei Li and Ming Li
Appl. Sci. 2020, 10(23), 8571; https://0-doi-org.brum.beds.ac.uk/10.3390/app10238571 - 30 Nov 2020
Cited by 2 | Viewed by 1412
Abstract
A compact multifrequency measurement system based on frequency-to-time mapping technology is proposed and experimentally demonstrated using an integrated frequency scanning signal generator. The relationship between the input microwave frequency and the time difference of a pair of pulses is established to realize the [...] Read more.
A compact multifrequency measurement system based on frequency-to-time mapping technology is proposed and experimentally demonstrated using an integrated frequency scanning signal generator. The relationship between the input microwave frequency and the time difference of a pair of pulses is established to realize the frequency information mapping to the time information. As a main part in the proposed frequency measurement system, the frequency-scanning signal is generated by heterodyning of two lasers with the monolithic integrated laser array, of which one is modulated on a saw-tooth signal. In the proposed frequency measurement system, it can measure single/multiple frequency microwave signals with a large bandwidth for high resolution and flexible tunable measurement range for multifrequency band. In the experimental demonstration, the single frequency measurement errors are less than 90 MHz within the measurement range from 4 to 12 GHz. For two-tone signal, the measurement resolution reaches about 150 MHz. Full article
(This article belongs to the Special Issue Bragg Gratings for Optical Signal Processing)
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Review

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23 pages, 3462 KiB  
Review
Fiber Bragg Grating-Based Optical Signal Processing: Review and Survey
by María R. Fernández-Ruiz and Alejandro Carballar
Appl. Sci. 2021, 11(17), 8189; https://0-doi-org.brum.beds.ac.uk/10.3390/app11178189 - 03 Sep 2021
Cited by 5 | Viewed by 2377
Abstract
This paper reviews the state of the art of fiber Bragg gratings (FBGs) as analog all-optical signal processing units. Besides the intrinsic advantages of FBGs, such as relatively low cost, low losses, polarization insensitivity and full compatibility with fiber-optic systems, they have proven [...] Read more.
This paper reviews the state of the art of fiber Bragg gratings (FBGs) as analog all-optical signal processing units. Besides the intrinsic advantages of FBGs, such as relatively low cost, low losses, polarization insensitivity and full compatibility with fiber-optic systems, they have proven to deliver an exceptional flexibility to perform any complex band-limited spectral response by means of the variation of their physical parameters. These features have made FBGs an ideal platform for the development of all-optical broadband filters and pulse processors. In this review, we resume the main design algorithms of signal processors based on FBGs, and we revisit the most common processing units based on FBGs and the applications that have been presented in the literature. Full article
(This article belongs to the Special Issue Bragg Gratings for Optical Signal Processing)
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