title: Dispersion-free optical coherence depth sensing with a spatial frequency comb generated by an angular spectrum modulator.
abstract: As an alternative to the conventional optical frequency comb technique, a spatial frequency comb technique is proposed for dispersion-free optical coherence depth sensing. Instead of generating an optical frequency comb over a wide range of time spectrum, we generate a spatial frequency comb by modulating the incident angle of a monochromatic plane wave with a spatial light modulator (SLM). The use of monochromatic light combined with the SLM enables dispersion-free depth sensing that is free from mechanical moving components.
authors.forename: Zhihui
authors.initials: Z
authors.lastname: Duan
authors.forename: Yoko
authors.initials: Y
authors.lastname: Miyamoto
authors.forename: Mitsuo
authors.initials: M
authors.lastname: Takeda