Acoustooptic Coherent Mode Coupling in Polarization-Maintaining Fiber and Its Application as a Variable-Polarization-Dependent Loss Element

Author

Huang, Rong ; Alhassen, Fares ; Tseng, David ; Boyraz, Ozdal ; Lee, Henry P.

Author_Institution

Henry Samueli Sch. of Eng., California Univ., Irvine, CA

Volume

19

Issue

9

fYear

2007

fDate

5/1/2007 12:00:00 AM

Firstpage

665

Lastpage

667

Abstract

In this letter, we investigate coherent acoustooptic coherent mode coupling from the LP₀₁ core mode to LP_1m cladding mode of a polarization-maintaining fiber (PMF) induced by two acoustic gratings. We show narrowband variable attenuation along either birefringent axis of the PMF by varying the relative phase between the two acoustic gratings. By launching two acoustic gratings at different frequencies, variable attenuation and low crosstalk along either birefringent axis within the acoustooptic coupling bandwidth are demonstrated

Keywords

acousto-optical filters; birefringence; diffraction gratings; optical fibre cladding; optical fibre filters; optical fibre losses; optical fibre polarisation; LP₀₁ core mode; LP_1m cladding mode; acoustic gratings; acoustooptic mode coupling; acoustooptic tunable filter; birefringence; coherent mode coupling; fiber acoustooptic filter; narrowband variable attenuation; polarization-maintaining fiber; variable-polarization-dependent loss element; Acoustic waves; Attenuation; Birefringence; Fiber gratings; Filters; Frequency; Optical fiber polarization; Page description languages; Piezoelectric polarization; Piezoelectric transducers; Acoustooptic tunable filter; coherent coupling; piezoelectric transducer (PZT); polarization-dependent loss (PDL);

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2007.894339

Filename

4147628