Title :
Femtosecond-comb distance meter: ultrahigh-resolution distance measurement using a mode-locked laser
Author :
Minoshima, Kaoru ; Tomita, Tatsuo ; Matsumoto, Hirokazu
Author_Institution :
Nat. Inst. of Adv. Ind. Sci. & Technol., AIST, Ibaraki, Japan
Abstract :
An ultrahigh accuracy distance meter with a simple setup and high reliability for a practical measurement is developed using a broad and stable femtosecond frequency comb. This device is fabricated to overcome the problem of cyclic error that originates from the electric and optical crosstalks. Since the femtosecond-comb distance meter (FCDM) does not require an external modulator, the setup is simple and thus the cyclic error is significantly suppressed. In this study, a world-record 2-μm uncertainty in the FCDM is achieved.
Keywords :
distance measurement; high-speed optical techniques; laser mode locking; optical crosstalk; reliability; cyclic error; electric crosstalks; femtosecond frequency comb; femtosecond-comb distance meter; optical crosstalks; reliability; ultrahigh-resolution distance measurement; uncertainty; Displacement measurement; Distance measurement; Fluctuations; Laser beams; Laser mode locking; Optical filters; Optical modulation; Phase measurement; Radio frequency; Ultrafast optics;
Conference_Titel :
Lasers and Electro-Optics, 2003. CLEO/Pacific Rim 2003. The 5th Pacific Rim Conference on
Print_ISBN :
0-7803-7766-4
DOI :
10.1109/CLEOPR.2003.1276950
