A study on optical coherence tomography using high frequency swept source

Lei Ding; Xinglin Tong; Liang Chen; Pan Hu; Di Huang; Minli Zhao; Hongqiao Wen

doi:10.1117/12.2223404

26 May 2016 A study on optical coherence tomography using high frequency swept source

Lei Ding, Xinglin Tong, Liang Chen, Pan Hu, Di Huang, Minli Zhao, Hongqiao Wen

Proceedings Volume 9854, Image Sensing Technologies: Materials, Devices, Systems, and Applications III; 985411 (2016) https://doi.org/10.1117/12.2223404
Event: SPIE Commercial + Scientific Sensing and Imaging, 2016, Baltimore, MD, United States

Abstract

Optical coherence tomography based on ultra technology is used for the assessment of subcutaneous tissue. Using high swept laser technology based on Fourier domain mode locking (FDML), the system operated in the 1300 nm wavelength range with axial scan rate of 150 kHz. Imaging at this wavelength range reduces optical scattering and improves imaging penetration depths in the tissues. The laser consists of a semiconductor amplifier as the gain medium, a tunable Fabry-Perot filter to change the wavelengthcand a long fiber ring cavity. The tuning range of laser is 102 nm. A balanced detector is used for spectra collection instead of the expensive CCD.

Citation Download Citation

Lei Ding, Xinglin Tong, Liang Chen, Pan Hu, Di Huang, Minli Zhao, and Hongqiao Wen "A study on optical coherence tomography using high frequency swept source", Proc. SPIE 9854, Image Sensing Technologies: Materials, Devices, Systems, and Applications III, 985411 (26 May 2016); https://doi.org/10.1117/12.2223404

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