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  • Received: Apr. 14, 2018

    Accepted: Jun. 25, 2018

    Posted: Jan. 17, 2019

    Published Online: Aug. 2, 2018

    The Author Email: Longfei Wang (wanmeiguiji@gmail.com), Danping Chen (dpchen2008@aliyun.com)

    DOI: 10.3788/COL201816.080601

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    Meng Li, Longfei Wang, Shuai Han, Chunlei Yu, Danping Chen, Wei Chen, Lili Hu. Large-mode-area neodymium-doped all-solid double-cladding silicate photonic bandgap fiber with an index step of ∼0.5%[J]. Chinese Optics Letters, 2018, 16(8): 080601

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Chinese Optics Letters, Vol. 16, Issue 8, 080601 (2018)

Large-mode-area neodymium-doped all-solid double-cladding silicate photonic bandgap fiber with an index step of ∼0.5%

Meng Li1,2, Longfei Wang1,*, Shuai Han1,2, Chunlei Yu1, Danping Chen1,**, Wei Chen1, and Lili Hu1

Author Affiliations

  • 1Key Laboratory of Materials for High Power Laser, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
  • 2University of Chinese Academy of Sciences, Beijing 100049, China

Abstract

A large-mode-area neodymium-doped silicate photonic bandgap fiber was theoretically designed and experimentally demonstrated. The relative index step between the high-index rods and the background glass was ∼0.5%, which is the lowest cladding index difference reported on rare-earth-doped all-solid photonic bandgap fibers to our knowledge. An output power of 3.6 W with a slope efficiency of 31% was obtained for a 100-cm-long fiber.