Title :
Measuring Multiple Parameters in a Self-Mixing Optical Feedback System
Author :
Yanguang Yu ; Jiangtao Xi ; Enbang Li ; Chicharo, J.F. ; Bosch, T.
Abstract :
We propose a new approach that yields the values of multiple parameters at the same time for self-mixing optical feedback interferometric systems. These parameters are the linewidth enhancement factor of semiconductor lasers, the optical feedback level factor as well as vibration information of a target including the frequency and the amplitude. The method is based on optical feedback interferometry. Its effectiveness has been confirmed by computer simulations and experiments
Keywords :
light interferometry; measurement by laser beam; optical feedback; semiconductor lasers; spectral line breadth; vibration measurement; interferometric systems; linewidth enhancement factor; multiple parameters; optical feedback interferometry; optical feedback level factor; self-mixing optical feedback; semiconductor lasers; vibration information; Equations; Fluid flow measurement; Frequency; Goniometers; Laser feedback; Optical feedback; Optical interferometry; Semiconductor lasers; Signal processing algorithms; Vibration measurement; Keywords-Linewidth enhancement factor; fitting algorithm; optical feedback; self-mixing interferometry; semiconductor lase; vibration measurement;
Conference_Titel :
Optoelectronic and Microelectronic Materials and Devices, 2004 Conference on
Conference_Location :
Brisbane, Qld.
Print_ISBN :
0-7803-8820-8
DOI :
10.1109/COMMAD.2004.1577538
