Optimization of optical spectral throughput of acousto-optic modulators for high-speed optical coherence tomography

Yuchuan Chen, Xiumei Liu, Michael J. Cobb, Mon Thiri Myaing, Tao Sun, Xingde Li

Research output: Contribution to journalArticle

Abstract

We describe a generic method to optimize the optical spectral throughput of a pair of acousto-optic modulators (AOM) which can be used for introducing a frequency shift in ultrahigh-resolution heterodyne optical coherence tomography. Systematic and quantitative analysis of a pair of AOMs indicates that a configuration with a spectral bandwidth of more than 200 nm at a center wavelength of 825 nm (tunable) can be achieved. Using a pair of AOMs in conjunction with a broadband low coherence light source, real-time imaging of biological tissues with an axial resolution ∼3 μm (in air) has been experimentally demonstrated with a high-speed OCT system.

Original languageEnglish (US)
Pages (from-to)7816-7822
Number of pages7
JournalOptics Express
Volume13
Issue number20
DOIs
StatePublished - Oct 3 2005
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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