Instantaneous complex conjugate resolved spectral domain and swept-source OCT using 3x3 fiber couplers

被引：124

作者：

Sarunic, MV ^{[1
]}

Choma, MA ^{[1
]}

Yang, CH ^{[1
]}

Izatt, JA ^{[1
]}

机构：

[1] Duke Univ, Dept Biomed Engn, Durham, NC 27708 USA

来源：

OPTICS EXPRESS | 2005年 / 13卷 / 03期

关键词：

D O I：

10.1364/OPEX.13.000957

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report that the complex conjugate artifact in Fourier domain optical coherence tomography approaches ( including spectral domain and swept source OCT) may be resolved by the use of novel interferometer designs based on 3x3 and higher order fiber couplers. Interferometers built from NxN (N>2) truly fused fiber couplers provide simultaneous access to non-complementary phase components of the complex interferometric signal. These phase components may be converted to quadrature components by trigonometric manipulation, then inverse Fourier transformed to obtain A-scans and images with resolved complex conjugate artifact. We demonstrate instantaneous complex conjugate resolved Fourier domain OCT using 3x3 couplers in both spectral domain and swept source implementations. Complex conjugate artifact suppression by factors of similar to20dB and similar to25dB are demonstrated for spectral domain and swept source implementations, respectively. (C) 2005 Optical Society of America.

引用

页码：957 / 967

页数：11

共 16 条

[1] Optical coherence tomography using a frequency-tunable optical source [J].