Wide-band suppression of laser intensity noise

Author

Ivanov, Eugene N.

Author_Institution

Sch. of Phys., Univ. of Western Australia, Crawley, WA

Volume

56

Issue

1

fYear

2009

fDate

1/1/2009 12:00:00 AM

Firstpage

22

Lastpage

26

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;

fLanguage

English

Journal_Title

Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on

Publisher

ieee

ISSN

0885-3010

Type

jour

DOI

10.1109/TUFFC.2009.1001

Filename

4775260