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Noble Metal Doped Optical Fiber for Specialty Light Source

  • Rik Chattopadhyay
  • Arindam Haldar
  • Mukul C. Paul
  • Shyamal K. BhadraEmail author
Conference paper
Part of the Springer Proceedings in Physics book series (SPPHY, volume 194)

Abstract

We report noble metal doped optical fiber which is suitable for laser and helps enhancing fluorescence when it is doped with active elements. Silver nano-clusters (average diameter 1.5 nm) in the core of a standard step index fiber are doped using standard fiber fabrication method. These fibers show broad visible fluorescence in the wavelength range 420–700 nm under 405 nm excitation. This appears to occur due to long interaction length of pump light with the metal nano-clusters and quantum confinement effect. We observe enhanced fluorescence from rare earth ions (i.e. Tm3+ and Yb3+) in presence of silver nano-clusters when the optimized length of the fiber is pumped by using 980 nm fiber-pig-tailed laser diode. The experimental results are explained with the help of analytical and quantum mechanical models. These fibers would be helpful to make efficient optical fiber based light sources mostly in the visible range.

Notes

Acknowledgements

Part of the work of RC & SKB is supported by CSIR Emeritus Scientist Scheme-21(1017)/15/EMR-II. Authors are indebted to Director, CSIR-CGRI, Kolkata for his support and encouragement and Director, IACS, Kolkata for his unstinted cooperation.

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Copyright information

© Springer Nature Singapore Pte Ltd. 2017

Authors and Affiliations

  • Rik Chattopadhyay
    • 1
    • 3
  • Arindam Haldar
    • 1
    • 2
  • Mukul C. Paul
    • 1
  • Shyamal K. Bhadra
    • 1
    • 3
    Email author
  1. 1.Fiber Optics and Photonics DivisionCSIR-Central Glass and Ceramic Research InstituteKolkataIndia
  2. 2.Optoelectronics Research CentreUniversity of SouthamptonSouthamptonUK
  3. 3.Raman Centre for Atomic, Molecular and Optical SciencesIndian Association for the Cultivation of Science (IACS)KolkataIndia

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