Abstract
We present a speckle reduction technique for optical coherence tomography based on strain compounding. Decorrelation is introduced between B-scans by altering the sample’s strain. A theoretical description of the technique, based on a transfer-function formalism, and experimental results on silicone phantoms are presented. Nearly complete decorrelation between successive B-scan speckle patterns was observed for a variation in strain of 0.045. Strain compounding by averaging nine B-scans, with 0.003 strain increments between them, resulted in a 1.5-fold reduction in speckle contrast ratio.
© 2010 Optical Society of America
Full Article | PDF ArticleMore Like This
Dongyao Cui, En Bo, Yuemei Luo, Xinyu Liu, Xianghong Wang, Si Chen, Xiaojun Yu, Shi Chen, Ping Shum, and Linbo Liu
Opt. Lett. 42(1) 125-128 (2017)
Norman Lippok, Poul Nielsen, and Frédérique Vanholsbeeck
Opt. Lett. 38(11) 1787-1789 (2013)
M. Bashkansky and J. Reintjes
Opt. Lett. 25(8) 545-547 (2000)