Title :
Noise reduction in an optical interferometer for picometer measurements
Author :
Fujimoto, H. ; Tanaka, M. ; Nakayama, K.
Author_Institution :
Nat. Res. Lab. of Metrol., Ibaraki, Japan
fDate :
June 27 1994-July 1 1994
Abstract :
An optical interferometer with the resolution of picometer level was developed. Several techniques are exploited to reduce the output fluctuation due to the thermal drift, and air movement. The short term noise performance was better than 3 pm.<>
Keywords :
interference suppression; laser beam applications; light interferometers; spatial variables measurement; thermal noise; air movement; noise reduction; optical interferometer; output fluctuation; picometer measurement; short term noise performance; thermal drift; Fluctuations; Laser beams; Noise measurement; Noise reduction; Optical beam splitting; Optical interferometry; Optical modulation; Optical noise; Optical sensors; Phase shifting interferometry;
Conference_Titel :
Precision Electromagnetic Measurements, 1994. Digest., 1994 Conference on
Conference_Location :
Boulder, CO, USA
Print_ISBN :
0-7803-1984-2
DOI :
10.1109/CPEM.1994.333183
