Open AccessDispersion-free optical coherence depth sensing with a spatial frequency comb generated by an angular spectrum modulator
Author(s) -
Zhihui Duan,
Yoko Miyamoto,
Mitsuo Takeda
Publication year - 2006
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.14.012109
Subject(s) - optics , spatial light modulator , monochromatic color , dispersion (optics) , coherence (philosophical gambling strategy) , frequency comb , spatial frequency , optical modulator , physics , materials science , phase modulation , laser , phase noise , quantum mechanics
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.