抄録
This paper describes the overview of special issue on exploration of the new world by optical frequency
comb technology. As an introduction of the special issue, I describe the history of technology development
and new trends on optical frequency comb applications. Optical frequency comb is no longer a
simple optical frequency ruler, but a platform of broad science and technology fields, which enables innovative
applications. This special issue will visualize such new trends of optical frequency comb applications.
