Modulated laser signal front-end processing technology

The paper presents a research on the front-end receiving circuit for processing the modulated laser signal. In order to get an overall understanding of optical filtering, some knowledge about the light collection and the spatial filtering is discussed firstly. Subsequently, to improve the design of...

Full description

Saved in:
Bibliographic Details
Published in2010 International Conference on Computer, Mechatronics, Control and Electronic Engineering Vol. 3; pp. 423 - 426
Main Authors Guozhong Yao, Jianqun Wang, Zhengshan Li, Xuejun Ran
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.08.2010
Subjects
current to voltage conversion
laser receiving
Lasers
Lenses
modulated laser signal
Optical filters
Optical sensors
transimpedance amplifier
Online AccessGet full text

Cover

More Information
Summary:The paper presents a research on the front-end receiving circuit for processing the modulated laser signal. In order to get an overall understanding of optical filtering, some knowledge about the light collection and the spatial filtering is discussed firstly. Subsequently, to improve the design of front-end circuit, several traditional laser receiving circuits are completely studied, and the advantage and the disadvantage of each circuit are summed up. On this base, furthermore, the TCVCC (Transimpedance current-to-voltage conversion circuit) with parallel LC feedback is put forward and explored. To verify the TCVCC with parallel LC frequency selective network, in detecting and recognizing weak modulated laser signal, is superior to the traditional laser receiving circuit, and an experiment is carried out finally. The experiment results show it is capable to extract the weak modulated laser signal from the strong noise.
ISBN:9781424479573
1424479576
ISSN:2159-6026
DOI:10.1109/CMCE.2010.5610274