Electro Optic Conversion Methods in Intra-Body Communication

2014 ◽  
Vol 513-517 ◽  
pp. 4458-4461
Author(s):  
Jian Li ◽  
Shuang Zhang
Keyword(s):  
Data Transmission ◽  
Communication System ◽  
High Speed ◽  
Optical Fiber Communication ◽  
Fiber Communication ◽  
External Modulation ◽  
Electro Optic ◽  
High Speed Data ◽  
Data Transmission System ◽  
Modulation Methods

Galvanic coupling method has been observed to be the best method for data transmission in intra-body communication, which is proposed by Zimmerman in 1995. With the increasing transmission requirements and the development of optical fiber communication, a high speed data transmission system is required and it is possible to design an apparatus to realize the electro optic conversion. In this paper, the characteristics of the intra-body communication system are introduced. Principles and structures of the electro-optic modulation methods for intra-body communication are reviewed. Internal and external modulation methods are introduced and discussed. A system of the electro-optic and acousto-optic modulation are recommended for the intra-body communication system and discussed.

Electro Optic Methods in Intra-Body Communication System

2013 ◽  
Vol 380-384 ◽  
pp. 3517-3521 ◽  
Author(s):  
Jian Li ◽  
Shuang Zhang ◽  
Yi He Liu
Keyword(s):  
Optical Fiber ◽  
Data Transmission ◽  
Communication System ◽  
High Speed ◽  
Optical Fiber Communication ◽  
Galvanic Coupling ◽  
Fiber Communication ◽  
External Modulation ◽  
Electro Optic ◽  
Modulation Methods

Intra-body communication is proposed by Zimmerman in 1995 and the galvanic coupling has been observed to be the best method for data transmission. With the increasing transmission requirements and the development of optical fiber communication, a high speed system is possible to be designed based on the Electro optic methods. In this paper, the characteristics of the intra-body communication system are introduced. Principles and structures of optic modulation for intra-body communication are reviewed. Internal and external modulation methods are introduced and discussed. A system of the electro optic modulation is recommended and discussed.

Study and Realize of High-Speed Data Transmission System Based on MODEM

2012 ◽  
Vol 155-156 ◽  
pp. 77-81
Author(s):  
Jing Zhang ◽  
Wei Dong
Keyword(s):  
Data Transmission ◽  
High Speed ◽  
Serial Communication ◽  
Transmission System ◽  
Serial Port ◽  
System Configuration ◽  
High Speed Data ◽  
Data Transmission System ◽  
Speed Data Transmission

System uses micro-controller MSP430 as MCU of a whole system, using an embedded MODEM as a MODEM of data of system, MODEM connection with the microcontroller through the serial port, using another chip of microcontroller to implement a serial communication with PC interface in order to achieve the overall system configuration. The innovations of author: system uses the data achieved by MSP430F149 to transmission system,it has some versatility, it is through an embedded MODEM module connection with the UART of microcontroller for data transmission.

Loss Characteristics Analysis and Optimization of an Off-Axis Rotary Optical Fiber Communication System

2014 ◽  
Vol 596 ◽  
pp. 788-793 ◽  
Author(s):  
Xiao Hua Wang ◽  
Qian Zhao ◽  
Li Li ◽  
Jie Ding ◽  
Qiu Xin Zheng ◽  
...  
Keyword(s):  
Optical Fiber ◽  
Communication System ◽  
High Speed ◽  
Optical Fiber Communication ◽  
Fiber Communication ◽  
Experiment Platform ◽  
Optical Fiber Communication System ◽  
Characteristics Analysis ◽  
Fiber Collimator ◽  
The Stability

The losses of the off-axis rotary optical fiber communication system were derived from optical fiber coupling, three kinds of misalignments between optical fiber collimators (Axial separation Z0, lateral offset X0, angular tilting θ), incomplete alignment of optical fiber collimator during rotation and system tremble caused by high speed rotating. Some measures were taken to reduce the loss. The thermally expanded core fiber collimator cut down the influence of axial separation and angular tilting. The position of the optical fiber collimator on the flange was adjusted and infrared right angle prisms were installed to reduce the losses during rotation of the system. In addition, improving the precision and optimizing device of mechanical structure can increase the stability of the whole experiment platform and decrease the losses.

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