A Combined Multiple-SLED Broadband Light Source at 1300 nm for High Resolution Optical Coherence Tomography

Optics Communications
Hui WangAndrew M Rollins

Abstract

We demonstrate a compact, inexpensive, and reliable fiber-coupled light source with broad bandwidth and sufficient power at 1300 nm for high resolution optical coherence tomography (OCT) imaging in real-time applications. By combining four superluminescent diodes (SLEDs) with different central wavelengths, the light source has a bandwidth of 145 nm centered at 1325 nm with over 10 mW of power. OCT images of an excised stage 30 embryonic chick heart acquired with our combined SLED light source (<5 μm axial resolution in tissue) are compared with images obtained with a single SLED source (~10 μm axial resolution in tissue). The high resolution OCT system with the combined SLED light source provides better image quality (smaller speckle noise) and a greater ability to observe fine structures in the embryonic heart.

References

Apr 12, 2003·Physical Review Letters·K L CorwinR S Windeler
Jan 13, 2004·Journal of Biomedical Optics·Wolfgang Drexler
Sep 2, 2005·Journal of the Optical Society of America. A, Optics, Image Science, and Vision·Yimin WangFrank Wise
Nov 17, 2007·Optics Letters·Renu TripathiJohannes F de Boer

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Citations

Aug 20, 2010·Optics Express·Wei KangAndrew M Rollins
Mar 3, 2020·Journal of the Optical Society of America. A, Optics, Image Science, and Vision·Anna GuanSteven Hinckley

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