Title :
New precise optical powermeter
Author :
Machekhin, Y.P. ; Tatyanko, D.N.
Author_Institution :
Kharkiv State Sci. & Res. Inst. of Metrol., Ukraine
Abstract :
The main components of the optical power meter are photodiode FD (G5832-01); an operational amplifier OA, which converts photocurrent into voltage feedback paths; a multiplexer, which switches feedback paths for automatic change of measurement range; an analog-digital converter which converts amplifier voltage output into digital code; and a microcontroller that is intended for amplification scheme control and also for realization of the function of interface with personal computer. Using a high-sensitivity photodiode allowed us to obtain the required dynamic range of power. The spectral characteristic of this photodiode and calibration factors K were determined from the curve of photodiode spectral sensitivity
Keywords :
analogue-digital conversion; calibration; measurement errors; multiplexing equipment; operational amplifiers; photodiodes; power meters; sensitivity; amplification scheme control; amplifier voltage output; analog-digital converter; calibration factors; digital code; dynamic range; feedback paths; high-sensitivity photodiode; measurement range; microcontroller; multiplexer; operational amplifier; personal computer; photocurrent; photodiode; photodiode spectral sensitivity; precise optical powermeter; spectral characteristic; voltage feedback paths; Analog-digital conversion; Operational amplifiers; Optical amplifiers; Optical feedback; Optical sensors; Output feedback; Photodiodes; Power amplifiers; Semiconductor optical amplifiers; Stimulated emission;
Conference_Titel :
Laser and Fiber-Optical Networks Modeling, 2001. Proceedings of LFNM 2001. 3rd International Workshop on
Conference_Location :
Kharkiv
Print_ISBN :
0-7803-6680-8
DOI :
10.1109/LFNM.2001.930236
