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Advances in Random Fiber Lasers and Their Sensing Application.

Hong Chen1,2, Shaohua Gao1,2, Mingjiang Zhang1,2

  • 1Key Laboratory of Advanced Transducers and Intelligent Control System, Ministry of Education, Taiyuan University of Technology, Taiyuan 030024, China.

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|October 31, 2020
PubMed
Summary
This summary is machine-generated.

Random fiber lasers (RFLs) offer a simpler, more reliable alternative to conventional lasers by eliminating resonant cavities. This review highlights their recent advancements and diverse applications in sensing and beyond.

Keywords:
fiberoptical fiber sensingrandom fiber laserrandom laser

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Area of Science:

  • Photonics and Optics
  • Laser Physics
  • Materials Science

Background:

  • Conventional lasers require complex resonant cavities, limiting design flexibility and reliability.
  • Random lasers (RLs) eliminate the need for resonant cavities, simplifying laser design.
  • Random fiber lasers (RFLs) represent a significant advancement in RL technology, offering enhanced structural simplicity and operational reliability.

Purpose of the Study:

  • To review the recent developments in random fiber lasers (RFLs) over the past decade.
  • To explore various RFL configurations and their output characteristics, with a focus on control methods.
  • To introduce the practical applications of RFLs, particularly in optical fiber sensing systems.

Main Methods:

  • Review of theoretical and experimental progress in RFLs.
  • Analysis of different optical fiber configurations for RFLs.
  • Examination of RFL output properties and control techniques.
  • Investigation of RFL applications in optical fiber sensing.

Main Results:

  • RFLs exhibit simpler structures, more flexible designs, and higher reliability compared to conventional lasers.
  • Significant progress has been made in RFL theory and experiments in the last decade.
  • RFLs have demonstrated valuable applications in earth sciences, biological life sciences, and national defense.
  • Optical fiber sensing systems represent a key practical application area for RFLs.

Conclusions:

  • Random fiber lasers are a promising technology with broad applicability due to their inherent advantages.
  • Continued research and development in RFLs are expected to yield further innovations and expanded applications.
  • The integration of RFLs into sensing systems offers a practical and impactful direction for future studies.