Title :
Direct comparison of absolute distance meter using an optical comb and integrated optical interferometer with an optical sub-wavelength accuracy
Author :
Minoshima, Kaoru ; Sakai, Yasuhiro ; Takahashi, Hisanari ; Inaba, Hajime ; Kawato, Sakae
Author_Institution :
Nat. Inst. of Adv. Ind. Sci. & Technol. (AIST), Nat. Metrol. Inst. of Japan (NMIJ), Tsukuba, Japan
Abstract :
Distance measurements using the 821st-harmonic of the intermode beat frequency in an optical comb with optical-sub-wavelength accuracy are demonstrated. Direct comparison with a laser interferometer for the same optical setup reveals good agreement to 20-nm.
Keywords :
distance measurement; light interferometers; optical elements; 821st-harmonic; absolute distance meter; distance measurements; intermode beat frequency; laser interferometer; optical comb; optical interferometer; optical sub-wavelength accuracy; wavelength 20 nm; Distance measurement; Frequency; Integrated optics; Optical crosstalk; Optical interferometry; Optical modulation; Optical refraction; Optical sensors; Optical variables control; Ultrafast optics; (000.0000) Optical combs; (120.3940) Metrology; (120.4800) Optical standards and testing;
Conference_Titel :
Lasers and Electro-Optics, 2009 and 2009 Conference on Quantum electronics and Laser Science Conference. CLEO/QELS 2009. Conference on
Conference_Location :
Baltimore, MD
Print_ISBN :
978-1-55752-869-8
Electronic_ISBN :
978-1-55752-869-8
