Polarization-based balanced detection for spectral domain polarization sensitive optical coherence tomography

Bahar Baradaran; Taner Akkin; Adam J. Black

doi:10.1117/12.3010055

13 March 2024 Polarization-based balanced detection for spectral domain polarization sensitive optical coherence tomography

Bahar Baradaran, Taner Akkin, Adam J. Black

Author Affiliations +

Proceedings Volume PC12845, Polarized Light and Optical Angular Momentum for Biomedical Diagnostics 2024; PC128450A (2024) https://doi.org/10.1117/12.3010055
Event: SPIE BiOS, 2024, San Francisco, California, United States

Abstract

We introduce a spectral domain polarization sensitive optical coherence tomography system with balanced detection capability. The design relies on polarization optics to split incoming light into reference and sample paths. Modified light returning from these paths creates the co- and cross-polarization channels, which are respectively coupled into two polarization-maintaining fibers. These fibers carry the light to a custom spectrometer, and their orthogonal axes help form the interference. The spectrometer produces two pairs of highly aligned and focused spectral lines on a camera for optimal balanced detection operation. System performance is characterized and demonstrated for biomedical imaging with improved signal-to-noise ratio.

Conference Presentation

Citation Download Citation

Bahar Baradaran, Taner Akkin, and Adam J. Black "Polarization-based balanced detection for spectral domain polarization sensitive optical coherence tomography", Proc. SPIE PC12845, Polarized Light and Optical Angular Momentum for Biomedical Diagnostics 2024, PC128450A (13 March 2024); https://doi.org/10.1117/12.3010055

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