External line-cavity wavelength-swept source at 850 nm for optical coherence tomography

Sang W. Lee, Chang Seok Kim, Beop-Min Kim

Research output: Contribution to journalArticle

31 Citations (Scopus)

Abstract

We constructed a novel and compact wavelength-swept laser source at the 850-nm region using an external line cavity in a modified Littman configuration filter. The angle alignment stability was improved by separating the function of output coupling and the wavelength selection of diffraction grating with gold coating. Our swept source produces laser output at the center wavelength of 849 nm and the average power of 2 mW with the full-width at half-maximum of 48 nm. The system performance is discussed and a two-dimensional image of a biological sample is presented.

Original languageEnglish
Pages (from-to)176-178
Number of pages3
JournalIEEE Photonics Technology Letters
Volume19
Issue number3
DOIs
Publication statusPublished - 2007 Feb 1
Externally publishedYes

Fingerprint

Optical tomography
tomography
Wavelength
cavities
Gold coatings
wavelengths
gold coatings
Lasers
Diffraction gratings
laser outputs
gratings (spectra)
Full width at half maximum
alignment
filters
output
configurations
lasers

Keywords

  • Fiber lasers
  • Optical coherence tomography (OCT)
  • Optical fiber
  • Optical imaging
  • Tunable lasers

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Physics and Astronomy (miscellaneous)
  • Atomic and Molecular Physics, and Optics

Cite this

External line-cavity wavelength-swept source at 850 nm for optical coherence tomography. / Lee, Sang W.; Kim, Chang Seok; Kim, Beop-Min.

In: IEEE Photonics Technology Letters, Vol. 19, No. 3, 01.02.2007, p. 176-178.

Research output: Contribution to journalArticle

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