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Related Experiment Video

Updated: May 21, 2026

Low-cost Custom Fabrication and Mode-locked Operation of an All-normal-dispersion Femtosecond Fiber Laser for Multiphoton Microscopy
08:48

Low-cost Custom Fabrication and Mode-locked Operation of an All-normal-dispersion Femtosecond Fiber Laser for Multiphoton Microscopy

Published on: November 22, 2019

Neodymium-doped phosphate fiber lasers with an all-solid microstructured inner cladding.

Guang Zhang1, Qinling Zhou, Chunlei Yu

  • 1Key Laboratory of High Power Laser Materials, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China. maxzw2008@163.com

Optics Letters
|June 29, 2012
PubMed
Summary

High-power fiber lasers using neodymium-doped phosphate photonic crystal fiber (PCF) achieved 7.92 W output. The hexagonal inner cladding enhanced pump absorption, enabling stable donut-shaped laser modes.

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Area of Science:

  • Photonics and Laser Technology
  • Materials Science

Background:

  • Development of high-power fiber lasers is crucial for various applications.
  • Photonic Crystal Fibers (PCFs) offer unique guiding properties for laser design.

Purpose of the Study:

  • To investigate high-power fiber laser performance using index-guiding, all-solid neodymium-doped (Nd-doped) phosphate PCF.
  • To analyze the impact of a hexagonal inner cladding on laser output and guiding properties.

Main Methods:

  • Fabrication and characterization of an all-solid Nd-doped phosphate PCF with a hexagonal inner cladding.
  • Experimental setup for high-power fiber laser operation and output power measurement.
  • Investigation of guiding properties and laser beam quality.

Main Results:

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  • An optimal 36 cm fiber laser generated up to 7.92 W output power at 1053 nm.
  • The hexagonal inner cladding significantly improved pump power absorption.
  • Stable donut-shaped mode profile and power-dependent laser beam quality were observed.

Conclusions:

  • Index-guiding all-solid Nd-doped phosphate PCF with a hexagonal inner cladding is effective for high-power fiber lasers.
  • The noncircular cladding design enhances absorption efficiency and enables stable mode operation.