Title :
Data Transmission System of an Optically Steered Modulated Laser Beam
Author :
Khaing, Thiri Thitsar ; Win, Tha Pyay
Author_Institution :
Comput. Hardware Technol. Dept., Comput. Univ., Taungoo, Myanmar
Abstract :
The main goal of this project is to develop and implement a prototype optical transmission system supporting point-to-point communication link. A free space laser link and a plastic fiber link have been designed and implemented in this present work. Both link have been tested with two data source systems: "PC as a host" and "PIC as a host" by asynchronous serial transmission. Since any serial data from either host is represented by turning the laser beam as on for a one and off for a zero, visible red laser diode is the heart of this project. Just up to the maximum speed of serial port that can be offered, 115200 bps, has been tested and is reliable at distance of 30 feet. As a result of this work, wireless laser system was designed and can be used as a direct link between adjacent buildings whereas plastic fiber link in short range communication network architecture without EMI, impossible direct interception and the transmission can be detected by no instrument. Any information in all types of files and any image can successfully transfer by Hyper Terminal and self-developed software through those links.
Keywords :
data communication; optical communication equipment; optical fibre networks; optical links; optical modulation; semiconductor lasers; telecommunication network reliability; Hyper Terminal transfer; PC host; PIC host; adjacent building link; asynchronous serial transmission; bit rate 115200 bit/s; data transmission system; distance 30 feet; free space laser link; optically steered modulated laser beam; plastic fiber link design; point-to-point communication link; prototype optical transmission system; reliability; self-developed software; serial port speed; short range communication network; visible red laser diode; wireless laser system; Data communication; Fiber lasers; Integrated optics; Laser beams; Optical design; Optical fiber communication; Optical fiber testing; Optical modulation; Plastics; Prototypes; OOK modulation; PS/2 and RS-232 interface; fiber optics; keyboard scanning and PIC microcontroller firmware; laser concepts;
Conference_Titel :
Computer Engineering and Applications (ICCEA), 2010 Second International Conference on
Conference_Location :
Bali Island
Print_ISBN :
978-1-4244-6079-3
Electronic_ISBN :
978-1-4244-6080-9
DOI :
10.1109/ICCEA.2010.122
