Development of robust and various speed wavelength-swept laser light source for ultrahigh-speed optical coherence tomography

Abstract

Stretched-pulse mode-locked laser is one of the most promising ultrahigh-speed wavelength-swept lasers which is recently introduced for optical coherence tomography. However, the optimal laser state of stretched-pulse mode-locked lasers in the previous studies should be found for every laser operation because they had poor operational robustness, and understanding what laser performance should be considered according to the change of the laser speed of this laser was insufficient because it has not been long since it was introduced. In this thesis, we introduce the method for highly robust stretched-pulse mode-locked laser, and investigate stretched-pulse mode-locked lasers with various types and speeds by building and analyzing them to find better stretched-pulse mode-locked laser.