Title :
Interference imaging profilometry using optical frequency comb and compressive sensing
Author :
Quang Duc Pham ; Hayasaki, Yoshio
Author_Institution :
Center for Opt. Res. & Educ. (CORE), Utsunomiya Univ., Utsunomiya, Japan
fDate :
June 30 2013-July 4 2013
Abstract :
We describe a new optical system using an ultra-stable mode-locked frequency comb femtosecond laser and the compressive sensing to measure an object surface profile. The highly-stabilized frequency comb laser is used to measure an object with a large depth very precisely without any 2π phase ambiguity. The compressive sensing is able to perform profilometry with two single pixel fast photo-receivers and few measurements. We demonstrate high dynamic range profilometry for a large depth object.
Keywords :
compressed sensing; high-speed optical techniques; laser mode locking; laser stability; measurement by laser beam; optical images; optical receivers; surface topography measurement; compressive sensing; high dynamic range profilometry; interference imaging profilometry; object surface profile; single pixel fast photoreceivers; ultra-stable mode-locked frequency comb femtosecond laser; Frequency measurement; Laser mode locking; Measurement by laser beam; Optical interferometry; Optical sensors; Optical variables measurement; Ultrafast optics;
Conference_Titel :
Lasers and Electro-Optics Pacific Rim (CLEO-PR), 2013 Conference on
Conference_Location :
Kyoto
DOI :
10.1109/CLEOPR.2013.6600041
