.png){kind=icon}
.png){kind=icon}
Return
Balanced detection for self-mixing interferometry
.png){kind=icon}
OA
AI
DOI：10.1364/OL.42.000283.png)
.png){kind=icon}
.png){kind=icon}
Share.png){kind=icon}
Save
Abstract
En 中文
We propose a new detection scheme for self-mixing interferometry using two photodiodes for implementing a differential acquisition. The method is based on the phase opposition of the self-mixing signal measured between the two laser diode facet outputs. The subtraction of the two outputs implements a sort of balanced detection that improves the signal quality, and allows canceling of unwanted signals due to laser modulation and disturbances on laser supply and transimpedance amplifier. Experimental results demonstrate the benefits of differential acquisition in a system for both absolute distance and displacement-vibration measurement. This Letter provides guidance for the design of self-mixing interferometers using balanced detection. (C) 2017 Optical Society of America
Keywords:
LASER-DIODE
SENSING APPLICATIONS
DISTANCE MEASUREMENT
SYSTEM
CAVITY
INTERFERENCE
VELOCIMETRY
MODULATION
GENERATION
VIBROMETER
AI Summary
Key information extracted from the uploaded paper, including a brief overview, abstract, background, key highlights, visual analysis, and future outlook.
Journal
IF:
3.3
Papers:
4.0W
Citations:
7.6W