Tunable polarization-dependent loss element based on acoustooptic mode coupling in a polarization-maintaining fiber

Author

Jung, Hyung Gi ; Lee, Sang Hoon ; Ji, Ho Chul ; Kim, Byoung Yoon ; Shin, Sang-Yung

Author_Institution

Dept. of Electr. Eng. & Comput. Sci., Korea Adv. Inst. of Sci. & Technol., Daejeon, South Korea

Volume

16

Issue

6

fYear

2004

fDate

6/1/2004 12:00:00 AM

Firstpage

1510

Lastpage

1512

Abstract

We demonstrate a tunable polarization-dependent loss (PDL) element based on the polarization-dependent coupling of the fundamental core mode to the cladding mode by the flexural acoustic wave in a polarization-maintaining fiber with an elliptical stress member. The resonant wavelength of PDL is tunable by adjusting the frequency of radio-frequency (RF) signal applied to the acoustic transducer, while the magnitude of PDL is variable by the voltage of the same RF signal. Over the wavelength from 1530 to 1570 nm, the variable ranges of PDL for two linear orthogonal polarizations are 16 and 17 dB, respectively.

Keywords

acousto-optical effects; optical fibre cladding; optical fibre couplers; optical fibre losses; optical fibre polarisation; optical tuning; 1530 to 1570 nm; acoustic transducer; acoustooptic mode coupling; cladding mode; elliptical stress member; flexural acoustic wave; fundamental core mode; orthogonal polarization; polarization-maintaining fiber; radiofrequency signal; tunable polarization-dependent loss element; Acoustic transducers; Acoustic waves; Birefringence; Couplings; Fiber gratings; Optical fiber devices; Optical fiber polarization; Page description languages; Radio frequency; Resonance;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2004.826808

Filename

1300648