Eiji Hase, Yu Tokizane, Masatomo Yamagiwa, Takeo Minamikawa, Hirotsugu Yamamoto, Isao Morohashi and Takeshi Yasui, “Multicascade-linked synthetic-wavelength digital holograpy using a line-by-line spectral-shaped optical frequency comb,” Optics Express 29 , 15772-15785 (2021).