Title :
Wide-band suppression of laser intensity noise
Author :
Ivanov, Eugene N.
Author_Institution :
Sch. of Phys., Univ. of Western Australia, Crawley, WA
fDate :
1/1/2009 12:00:00 AM
Abstract :
A simple and efficient laser intensity stabilization system was constructed based on an electro-optical modulator (EOM) and a photodetector. It is capable of reducing the laser intensity fluctuations to the shot noise limit within the range of Fourier frequencies from a few tens of hertz to a few megahertz. The achieved bandwidth of the laser control system is limited by the light handling capacity of the photodetector and spurious resonances of the EOM. We discuss the general approach to the design of the laser intensity stabilization system and its noise properties.
Keywords :
electro-optical modulation; fluctuations; laser beams; laser noise; optical control; photodetectors; shot noise; Fourier frequencies; bandwidth; electrooptical modulator; laser control system; laser intensity fluctuations; laser intensity noise; laser intensity stabilization system; light handling capacity; photodetector; shot noise limit; wide-band suppression; Electrooptic modulators; Fluctuations; Frequency; Intensity modulation; Laser noise; Laser stability; Lasers and electrooptics; Noise reduction; Photodetectors; Wideband;
Journal_Title :
Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on
DOI :
10.1109/TUFFC.2009.1001
