A combined multiple-SLED broadband light source at 1300 nm for high resolution optical coherence tomography
✍ Scribed by Hui Wang; Michael W. Jenkins; Andrew M. Rollins
- Publisher
- Elsevier Science
- Year
- 2008
- Tongue
- English
- Weight
- 574 KB
- Volume
- 281
- Category
- Article
- ISSN
- 0030-4018
No coin nor oath required. For personal study only.
✦ Synopsis
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.