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Spiral scanning fiber-optic two-photon endomicroscopy with a double-cladding antiresonant fiber

  • Conghao Wang
  • , Huilan Liu
  • , Jianrui Ma
  • , Haodong Cui
  • , Yijun Li
  • , Danlei Wu
  • , Yanhui Hu
  • , Dakun Wu
  • , Qiang Fu
  • , Lintang Liang
  • , Fei Yu
  • , Runlong Wu
  • , Aimin Wang
  • , Lishuang Feng*
  • *Corresponding author for this work
  • Beihang University
  • Key Laboratory of Precision Opto-Mechatronics Technology (Ministry of Education)
  • Ltd
  • University of Chinese Academy of Sciences
  • CAS - Shanghai Institute of Optics and Fine Mechanics
  • Peking University

Research output: Contribution to journalArticlepeer-review

Abstract

Two-photon endomicroscopy is an optical biopsy tool that satisfies clinical requirements for real-time subcellular-resolution imaging to assist pathological biopsy in diagnosis. Herein, we present a two-photon endomicroscopy system based on a piezoelectric ceramic tube scanner. A dual-channel amplitude-modulated sine wave drives the fiber to realize spiral scanning, a double-cladding antiresonant fiber is used for 920-nm femtosecond light-pulse low dispersion transmission, and fluorescence collection occurs with no fiber-tip engineering. The field of view is ∼200 µm, the resolution is 3.1 µm, and the frame rate is 0.7 fps. Pollen grain, GFP-labeled mouse brain section, and human stomach tissue imaging verify the capability of the two-photon endomicroscopy system.

Original languageEnglish
Pages (from-to)43124-43135
Number of pages12
JournalOptics Express
Volume29
Issue number26
DOIs
StatePublished - 20 Dec 2021

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