Title :
Diode lasers with external optical feedback for small displacement measurements
Author :
Gamidov, R. ; Cetintas, M. ; Sadinkhov, E. ; Sautenkov, V.
Author_Institution :
Ulusal Metroloji Enstitusu, Gebze-Kocaeli, Turkey
Abstract :
A new approach to non-contact investigation of small displacements by measuring a diode laser frequency shift was demonstrated. The laser frequency shift is due to an optical feedback from a surface of the moving object and proportional to the object displacement. The technique was applied for calibration of standard accelerometer.
Keywords :
accelerometers; calibration; displacement measurement; laser feedback; measurement by laser beam; semiconductor lasers; calibration; diode laser frequency shift; diode lasers; displacement measurements; external optical feedback; laser frequency shift; moving object; non-contact investigation; object displacement; optical feedback; standard accelerometer; vibrational displacement; Calibration; Diode lasers; Displacement measurement; Frequency measurement; Laser feedback; Laser noise; Optical feedback; Optical surface waves; Spatial resolution; Vibration measurement;
Conference_Titel :
Precision Electromagnetic Measurements Digest, 1996 Conference on
Conference_Location :
Braunschweig, Germany
Print_ISBN :
0-7803-3376-4
DOI :
10.1109/CPEM.1996.546650
