Title :
High-precision absolute length metrology using fiber-based optical frequency combs
Author_Institution :
Nat. Metrol. Inst. of Japan (NMIJ), Nat. Inst. of Adv. Ind. Sci. & Technol. (AIST), Tsukuba, Japan
Abstract :
A distance measurement technique with sub-wavelength accuracy using 821st-harmonic of the intermode-beats of a fiber-based frequency comb was developed. The developed method can provide a coherent link to an integrated laser interferometer for absolute-long-distance measurements, taking advantage of the ultrahigh dynamic range of frequency combs.
Keywords :
distance measurement; erbium; high-speed optical techniques; integrated optics; laser modes; light coherence; light interferometers; measurement by laser beam; JkJk:Er; absolute-long-distance measurement technique; coherent link; fiber-based optical frequency combs; high-precision absolute length metrology; integrated laser interferometer; intermode beats; ultrahigh dynamic frequency combs; Frequency measurement; Measurement by laser beam; Optical fiber sensors; Optical fibers; Optical interferometry;
Conference_Titel :
Electromagnetics in Advanced Applications (ICEAA), 2010 International Conference on
Conference_Location :
Sydney, NSW
Print_ISBN :
978-1-4244-7366-3
DOI :
10.1109/ICEAA.2010.5650676
