Title :
Current source design of the reference laser diode for space-borne Fourier transform spectrometer
Author :
Xiaoqiang Jin ; Zuoxiao Dai ; Ren Chen ; Dayu Li ; Xiaojie Sun
Author_Institution :
Shanghai Inst. of Tech. Phys., Chinese Acad. of Sci., Shanghai, China
Abstract :
A laser diode is adopted as the reference light source in the Fourier transform spectrometer. Due to the high spectral accuracy, the fluctuation of the current source that drives the laser diode should be less than 15 uA. A high precision current source for the laser diode is described in this paper. The principle is analyzed and the simulation is realized. Experiments are setup and test data are obtained. It is found that the stability of the current source is better than 10 uA.
Keywords :
Fourier transform spectrometers; MOSFET; laser frequency stability; operational amplifiers; optical testing; remote sensing by laser beam; semiconductor lasers; current fluctuation; frequency stability; high precision current source design; laser diode; op-amp; optical testing; space-borne Fourier transform spectrometer; Circuit stability; Diode lasers; Fourier transforms; Laser stability; Semiconductor lasers; Stability analysis; Thermal stability; Fourier transform spectrometer; current source; laser diode;
Conference_Titel :
Image and Signal Processing (CISP), 2010 3rd International Congress on
Conference_Location :
Yantai
Print_ISBN :
978-1-4244-6513-2
DOI :
10.1109/CISP.2010.5646829
