[14p-F205-1~15] 3.3 Information photonics and image engineering

[14p-F205-8] Cascade link multi-wavelength digital holography using optical frequency comb referenced synthesizer

〇Masatomo Yamagiwa^1,2, Takayuki Ogawa¹, Yusuke Kawahito¹, Clement Torovato³, Takeo Minamikawa^1,2, Hirotsugu Yamamoto^2,4, Takeshi Yasui^1,2 (1.Tokushima Univ., 2.JST, ERATO MINOSHIMA IOS, 3.Univ. of Bordeaux, 4.Utsunomiya Univ.)

Keywords:Digital holography, Optical Frequency Comb, Optical metrology

We present cascade link multi-wavelength digital holography using optical frequency comb referenced synthesizer. This system expands the dynamic range of height in digital holography by cascade link. In the experiment, 4 synthesized wavelengths generated by an optical frequency comb referenced synthesizer and a single wavelength were cascaded, and steps of 10 mm was measured.