Broadband low-repetition-rate mode-locked fiber laser for swept source optical coherence tomography

  • Laiyang Dang
  • , Wenhao Zhu
  • , Dongmei Huang
  • , Feng Li

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

Abstract

We proposed and demonstrated an all-fiber nonlinear polarization rotation (NPR) erbium-doped mode-locked laser, which reduces the laser repetition rate to 5.7 MHz based on a large mode area fiber (LAMF). In addition, the laser 3 dB bandwidth is extended to 86.4 nm by using extra cavity supercontinuum broadening. To the best of our knowledge, this is the first time to obtain a broadband output using such a low repetition rate mode-locked laser. This broadband low repetition rate mode-locked laser signal is then applied to time-stretched optical coherence tomography (OCT). The swept source can achieve an imaging range of more than 85 mm and a sensitivity roll-off of 3.5 dB in OCT. The all-fiber low repetition rate broadband swept source based on time-stretching technology has a compact structure and high stability, and is very promising in the field of frequency measurement and high-resolution OCT.

Original languageEnglish
Title of host publicationFifteenth International Conference on Information Optics and Photonics, CIOP 2024
EditorsYue Yang
PublisherSPIE
Pages1-5
Number of pages5
Volume13418
ISBN (Electronic)9781510686168
DOIs
Publication statusPublished - Aug 2024
Event15th International Conference on Information Optics and Photonics, CIOP 2024 - Xi'an, China
Duration: 11 Aug 202415 Aug 2024

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume13418
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

Conference15th International Conference on Information Optics and Photonics, CIOP 2024
Country/TerritoryChina
CityXi'an
Period11/08/2415/08/24

Keywords

  • Broadband low-repetition-rate
  • mode-locked fiber laser
  • optical coherence tomography
  • spectral broadening
  • swept source

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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