Interferometric noise reduction in fiber-optic links by superposition of high frequency modulation

Author

Pepeljugoski, Petar K. ; Lau, Kam Y.

Author_Institution

Dept. of Electr. Eng. & Comput. Sci., California Univ., Berkeley, CA, USA

Volume

10

Issue

7

fYear

1992

fDate

7/1/1992 12:00:00 AM

Firstpage

957

Lastpage

963

Abstract

The reduction of interferometric noise by superposition of high frequency modulation is analyzed. It is shown that the nature of this reduction is due to a redistribution of noise energy from baseband to higher frequencies where it can be discarded by low-pass filtering. Detailed analysis revealed the dependence of the noise reduction factor on the product f_0τ, and the modulation index of the high frequency superimposed modulation. The proper choice of parameters can lead to complete elimination of the converted phase noise from the system

Keywords

frequency modulation; noise; optical links; optical modulation; fiber-optic links; high frequency modulation; high frequency superimposed modulation; interferometric noise; light interferometry; low-pass filtering; modulation index; noise energy; noise reduction factor; phase noise; Acoustic reflection; Baseband; Fiber lasers; Filtering; Frequency modulation; Laser noise; Low pass filters; Noise reduction; Optical interferometry; Optical reflection; Phase noise; Pulse modulation; Semiconductor device noise;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/50.144919

Filename

144919