Spectrally encoded extended source optical coherence tomography

Spectrally encoded extended source optical coherence tomography

We have developed an extended source optical coherence tomography (SEES-OCT) technique in an attempt to improve signal strength for ophthalmic imaging. A line illumination with a visual angle of 7.9 mrad is produced by introducing a dispersive element in the infinity space of the sample arm. The max...

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Bibliographic Details
Main Authors: Yu, Xiaojun, Tang, Hongying, Liu, Xinyu, Cui, Dongyao, Beotra, Meghna R., Girard, Michael J. A., Sun, Ding, Gu, Jun, Liu, Linbo
Other Authors: School of Electrical and Electronic Engineering
Format: Article
Language:English
Published: 2015
Subjects:
DRNTU::Engineering::Electrical and electronic engineering::Optics, optoelectronics, photonics
Online Access:https://hdl.handle.net/10356/107219
http://hdl.handle.net/10220/25313
http://dx.doi.org/10.1364/OL.39.006803
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Institution: Nanyang Technological University
Language: English
Description
Summary:We have developed an extended source optical coherence tomography (SEES-OCT) technique in an attempt to improve signal strength for ophthalmic imaging. A line illumination with a visual angle of 7.9 mrad is produced by introducing a dispersive element in the infinity space of the sample arm. The maximum permissible exposure (MPE) of such an extended source is 3.1 times larger than that of a ‘standard’ point source OCT, which corresponds to sensitivity improvement of 5-dB. The advantage of SEES-OCT in providing superior penetration depth over a point source system is demonstrated using swine eye tissues ex vivo.

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