Fabrication and Characteristics of Ce-Doped Fiber for High-Resolution OCT Source

Liu, Chun-Nien; Huang, Yi-Chung; Lin, Yung Sheng; Wang, Shengyuan; Huang, Peng; Shih, Tien‐Tsorng; Huang, Sheng‐Lung; Cheng, Wood-Hi

doi:10.1109/lpt.2014.2327127

Cited by 16 publications

(2 citation statements)

References 12 publications

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“…Yi and Li also used a xenon lamp as an incoherent source in an OCT setup to measure absorption and scattering spectra in bead phantoms [141], and later fit SOCT spectra to obtain oxygen saturation information from erythrocytes using the same source [142]. Other approaches to developing low-cost broadband visible sources include Ce:YAG pumped by blue laser light to transmit a broadband fluorescence spectrum [143,144]. A company, Opticent Health, has announced the intention to launch the first commercial spectroscopic vis-OCT system, the Halo ™ 275 in 2021, intended for research purposes only and not for use in diagnostic purposes.…”

Section: Visible-light and Spectroscopic Octmentioning

confidence: 99%

A review of low-cost and portable optical coherence tomography

et al. 2021

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Optical coherence tomography (OCT) is a powerful optical imaging technique capable of visualizing the internal structure of biological tissues at near cellular resolution. For years, OCT has been regarded as the standard of care in ophthalmology, acting as an invaluable tool for the assessment of retinal pathology. However, the costly nature of most current commercial OCT systems has limited its general accessibility, especially in low-resource environments. It is therefore timely to review the development of low-cost OCT systems as a route for applying this technology to population-scale disease screening. Low-cost, portable and easy to use OCT systems will be essential to facilitate widespread use at point of care settings while ensuring that they offer the necessary imaging performances needed for clinical detection of retinal pathology. The development of low-cost OCT also offers the potential to enable application in fields outside ophthalmology by lowering the barrier to entry. In this paper, we review the current development and applications of low-cost, portable and handheld OCT in both translational and research settings. Design and cost-reduction techniques are described for general low-cost OCT systems, including considerations regarding spectrometer-based detection, scanning optics, system control, signal processing, and the role of 3D printing technology. Lastly, a review of clinical applications enabled by low-cost OCT is presented, along with a detailed discussion of current limitations and outlook.

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Section: Visible-light and Spectroscopic Octmentioning

confidence: 99%

A review of low-cost and portable optical coherence tomography

et al. 2021

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“…1,2 On one hand radiation detection has been the motivation to forward the research on scintillators; 3,4 and on the other hand Ce-doped silica fiber has been studied for non-invasive biomedical technique such as high resolution optical coherence tomography (OCT). 5,6 At the same time, Ce has been used with phosphors to achieve white light from light-emitting diodes. 7 However, due to excellent fluorescence spectrum promise of Ce-doped silica fibers they may be employed in future for both visible light emission and possibly supplement greatly exciting and rapidly growing field of visible light communication.…”

Section: Introductionmentioning

confidence: 99%

405-nm pumped Ce3+-doped silica fiber for broadband fluorescence from cyan to red

Yadav

Chichkov

Gumenyuk

et al. 2019

Optical Components and Materials XVI

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A pure Ce-doped silica fiber is fabricated using modified chemical vapor deposition (MCVD) technique. Fluorescence characteristrics of a Ce-doped silica fiber are experimentally investigaed with continous wave pumping from 440 nm to 405 nm. Best pump absorption and broad flourescence spectrum is observed for ∼ 405 nm laser. Next, the detailed anaysis of spectral response as a function of pump power and fiber length is performed. It is observed that a-10dB spectral width of ∼ 280 mn can be easily achieved with different combinations of the fiber length and pump power. Lastly, we present, for the first time to the best of our knowledge, a broadband fluorescence spectrum with-10dB spectral width of 301 nm, spanning from ∼ 517.36 nm to ∼ 818 nm, from such fibers with non-UV pump lasers.

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