Speckle Contrast Reduction through the use of a Modally-Specific Photonic Lantern in Few-Modes Optical Coherence Tomography

Maltais-Tariant, Raphaël; Brais-Brunet, Simon; Dehaes, Mathieu; Boudoux, Caroline

doi:10.1364/boda.2023.dm3a.8

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2023

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“…A preliminary version of this work was presented orally at the session “Bio-Optics Design and Applications” of the Optical Biophotonics Congress in 2023, “Speckle Contrast Reduction through the use of a Modally-Specific Photonic Lantern in Few-Modes Optical Coherence Tomography” [ 54 ]. The authors would like to thank Castor Optics, inc. for supplying an MSPL prototype.…”

Section: Acknowledgmentsmentioning

confidence: 99%

Speckle contrast reduction through the use of a modally-specific photonic lantern for optical coherence tomography

Maltais-Tariant,

Itzamna Becerra-Deana,

Brais-Brunet

et al. 2023

Biomed. Opt. Express

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A few-mode optical coherence tomography (FM-OCT) system was developed around a 2 × 1 modally-specific photonic lantern (MSPL) centered at 1310 nm. The MSPL allowed FM-OCT to acquire two coregistered images with uncorrelated speckle patterns generated by their specific coherent spread function. Here, we showed that averaging such images in vitro and in vivo reduced the speckle contrast by up to 28% and increased signal-to-noise ratio (SNR) by up to 48% with negligible impact on image spatial resolution. This method is compatible with other speckle reduction techniques to further improve OCT image quality.

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Section: Acknowledgmentsmentioning

confidence: 99%

Speckle contrast reduction through the use of a modally-specific photonic lantern for optical coherence tomography

Maltais-Tariant,

Itzamna Becerra-Deana,

Brais-Brunet

et al. 2023

Biomed. Opt. Express

View full text Add to dashboard Cite

show abstract

Speckle Contrast Reduction through the use of a Modally-Specific Photonic Lantern in Few-Modes Optical Coherence Tomography

Abstract: We demonstrate how a modally-specific photonic lantern can be used in optical coherence tomography to both reduce speckle contrast and increase signal-to-noise ratio.

Cited by 1 publication

References 5 publications

Speckle contrast reduction through the use of a modally-specific photonic lantern for optical coherence tomography

Speckle contrast reduction through the use of a modally-specific photonic lantern for optical coherence tomography

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