Automatic bias control of electro-optic modulator in optical-fiber Brillouin sensing system

2012 ◽  
Author(s):  
Yongqian Li ◽  
Lipeng Yu ◽  
Anqiang Lv
Keyword(s):  
Optical Fiber ◽  
Sensing System ◽  
Electro Optic ◽  
Electro Optic Modulator

An Electro-Optic Modulator Bias Point Stabilization Technique for the Distributed Brillouin Sensing System

2011 ◽  
Vol 71-78 ◽  
pp. 1200-1203
Author(s):  
Kai Zhang ◽  
Yi Xin Zhang
Keyword(s):  
Digital Signal Processor ◽  
Extinction Ratio ◽  
Digital Signal ◽  
External Factors ◽  
Sensing System ◽  
Electro Optic ◽  
Variable Bias ◽  
Stabilization Technique ◽  
Bias Point ◽  
Electro Optic Modulator

During the measurement of a BOTDR system, it is significant to keep the extinction ratio of probe pulse uniform if constant sensing performance is desired. However the bias point of an electro-optic modulator (EOM) may slowly changes due to many external factors. Thus the variable bias point of the EOM must be stabilized. In this paper, a novel and simplified stabilization technique based on digital signal processor and step-by-step tracking algorithm is proposed. Contrast experiments with and without the stabilization are performed. The experimental results show that our method can lock the EOM’s bias point quite well and improve the sensing system’s performance obviously.

An Optical Fiber Electro-Optic Modulator

1987 ◽  
Author(s):  
M. A. El-Sherif ◽  
P. M. Shankar ◽  
P. R. Herczfeld ◽  
L. Bobb ◽  
H. Krumboltz
Keyword(s):  
Optical Fiber ◽  
Electro Optic ◽  
Electro Optic Modulator

Electro-Optic Modulator for Compensation of Third-Order Intermodulation Distortion Using Frequency Chirp Modulation

2020 ◽  
Vol E103.C (11) ◽  
pp. 653-660
Author(s):  
Daichi FURUBAYASHI ◽  
Yuta KASHIWAGI ◽  
Takanori SATO ◽  
Tadashi KAWAI ◽  
Akira ENOKIHARA ◽  
...  
Keyword(s):  
Intermodulation Distortion ◽  
Frequency Chirp ◽  
Third Order ◽  
Chirp Modulation ◽  
Electro Optic ◽  
Electro Optic Modulator

Velocity matching of III-V travelling-wave electro-optic modulator structures

1990 ◽  
Vol 26 (1) ◽  
pp. 32-33 ◽  
Author(s):  
M.R.T. Tan ◽  
I. Kim ◽  
J. Chang ◽  
S.Y. Wang
Keyword(s):  
Travelling Wave ◽  
Electro Optic ◽  
Velocity Matching ◽  
Electro Optic Modulator
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