TY - GEN
T1 - Modulated laser signal front-end processing technology
AU - Yao, Guozhong
AU - Wang, Jianqun
AU - Li, Zhengshan
AU - Ran, Xuejun
PY - 2010
Y1 - 2010
N2 - 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.
AB - 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.
KW - Current to voltage conversion
KW - Laser receiving
KW - Modulated laser signal
KW - Transimpedance amplifie
UR - http://www.scopus.com/inward/record.url?scp=78649981561&partnerID=8YFLogxK
U2 - 10.1109/CMCE.2010.5610274
DO - 10.1109/CMCE.2010.5610274
M3 - Conference contribution
AN - SCOPUS:78649981561
SN - 9781424479566
T3 - 2010 International Conference on Computer, Mechatronics, Control and Electronic Engineering, CMCE 2010
SP - 423
EP - 426
BT - 2010 International Conference on Computer, Mechatronics, Control and Electronic Engineering, CMCE 2010
T2 - 2010 International Conference on Computer, Mechatronics, Control and Electronic Engineering, CMCE 2010
Y2 - 24 August 2010 through 26 August 2010
ER -