Title :
Frequency-Path Modeling for Three-Longitudinal-Mode Interferometer
Author :
Olyaee, Saeed ; Nejad, Shahram Mohammad
Abstract :
In this paper, a frequency-path model for three-longitudinal-mode interferometer (TLMI) is presented. The model describes two main error sources that affect the accuracy of displacement in heterodyne interferometers. Unwanted leakage between the reference and the target paths and inter-modulation error due to the nonlinearity of current to voltage converter, double balanced mixer, and pre-amplifier are two main error sources in the TLMI. Using a three-longitudinal-mode stabilized He-Ne laser, six frequency-path components and 21 distinct interference terms is produced.
Keywords :
error analysis; light interferometers; optical modulation; double balanced mixer; frequency-path modeling; heterodyne interferometers; inter-modulation error; pre-amplifier; stabilized He-Ne laser; three-longitudinal-mode interferometer; voltage converter; Avalanche photodiodes; Displacement measurement; Frequency; Interference; Laser beam cutting; Laser modes; Laser stability; Laser theory; Optical interferometry; Semiconductor lasers;
Conference_Titel :
Electronics, Circuits and Systems, 2006. ICECS '06. 13th IEEE International Conference on
Conference_Location :
Nice
Print_ISBN :
1-4244-0395-2
Electronic_ISBN :
1-4244-0395-2
DOI :
10.1109/ICECS.2006.379755
