Title :
In Vivo OCT Imaging Based on La-Codoped Bismuth-Based Erbium-Doped Fiber
Author :
Jianbing Xu ; Haiyan Ou ; Xie Wang ; Chui, P.C. ; Hwa Yaw Tam ; Wong, Kenneth K. Y.
Author_Institution :
Dept. of Electr. & Electron. Eng., Univ. of Hong Kong, Hong Kong, China
Abstract :
We demonstrate a Fourier domain mode-locked laser based on lanthanum-codoped bismuth-based erbium-doped fiber (Bi-EDF) for swept source optical coherence tomography (SS-OCT) imaging. Raman amplification is incorporated to suppress the gain competition and homogenous linewidth broadening effects of Bi-EDF. A wavelength sweeping bandwidth of 81 nm is generated under stable operation. Therefore, in vivo OCT imaging of human finger print and orange slices is enabled and the results are also presented. This scheme paves the way for doped fiber amplifiers to be employed to generate ultra-wideband SSs for OCT applications.
Keywords :
Fourier transform optics; Raman spectra; bismuth; doping; erbium; lanthanum; laser mode locking; optical fibre amplifiers; optical fibres; optical tomography; spectral line broadening; Bi:Er,La; Fourier domain mode-locked laser; La-codoped bismuth-based erbium-doped fiber; Raman amplification; SS-OCT imaging; doped fiber amplifier; gain competition suppression; homogenous linewidth broadening effect suppression; human finger print; in vivo OCT imaging; lanthanum-codoped Bi-EDF; orange slice; swept source optical coherence tomography; ultrawideband SS generation; wavelength 81 nm; wavelength sweeping bandwidth generation; Bandwidth; Optical amplifiers; Optical fiber amplifiers; Optical fiber sensors; Optical imaging; Erbium; bismuth; mode locked laser; optical imaging;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2013.2275185
