An all-fiber optic catheter-based polarization-sensitive optical coherence tomography system is demonstrated. A novel multiplexing method was used to illuminate the sample, splitting the light from a 58.5 kHz Fourier-domain mode-locked laser such that two different polarization states, alternated in time, are generated by two semiconductor optical amplifiers. A 2.3 mm forward-view cone-scanning catheter probe was designed, fabricated, and used to acquire sample scattering intensity and phase retardation images. The system was first verified with a quarter-wave plate and then by obtaining intensity and phase retardation images of high-birefringence plastic, human skin in vivo, and untreated and thermally ablated porcine myocardium ex vivo. The system can potentially in vivo image of the cardiac wall to aid radio-frequency ablation therapy for cardiac arrhythmias.
© 2014 Optical Society of AmericaFull Article | PDF Article
W.Y. Oh, S.H. Yun, B.J. Vakoc, M. Shishkov, A.E. Desjardins, B.H. Park, J.F. de Boer, G.J. Tearney, and B.E. Bouma
Opt. Express 16(2) 1096-1103 (2008)
Stavros G. Demos and Shiva Sharareh
Opt. Express 16(19) 15286-15296 (2008)
Christine P. Fleming, Kara J. Quan, Hui Wang, Guy Amit, and Andrew M. Rollins
Opt. Express 18(3) 3079-3092 (2010)