High-resolution microwave phonon spectroscopy of dispersion-shifted fiber

Author

Oh, Ilwhan ; Yegnanarayanan, Siva ; Jalali, Bahram

Author_Institution

Electron. Eng. Dept., Mokpo Nat. Univ., South Korea

Volume

14

Issue

3

fYear

2002

fDate

3/1/2002 12:00:00 AM

Firstpage

358

Lastpage

360

Abstract

First measurements of acoustic modes in dispersion-shifted fiber are presented. High-resolution microwave phonon spectroscopy, performed using an improved method for resolving resonant spectral features, reveals the presence of the L/sub 04/ mode. The use of external cavity tunable lasers for pump and probe enables kilohertz range spectral resolution and high sensitivity. In addition, this method enables down conversion of the phonon spectrum to lower frequencies through the use of beat-Brillouin effect.

Keywords

microwave spectroscopy; optical fibre dispersion; optical fibre testing; stimulated Brillouin scattering; Brillouin spectra; acoustic modes; dispersion-shifted fiber; down conversion; external cavity tunable lasers; fiber-doping profile; high sensitivity; high-resolution microwave phonon spectroscopy; stimulated Brillouin amplification; swept microwave sideband; third higher order acoustic mode; Acoustic measurements; Dispersion; Fiber lasers; Laser modes; Microwave theory and techniques; Phonons; Pump lasers; Resonance; Spectroscopy; Tunable circuits and devices;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/68.986812

Filename

986812