Highly efficient all-fiber tunable polarization filter using torsional acoustic wave | Zendy

Kwang Jo Lee | Zendy; Hoon Cheol Park | Zendy; Byoung Yoon Kim | Zendy

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Highly efficient all-fiber tunable polarization filter using torsional acoustic wave

Author(s) -

Kwang Jo Lee,

Hoon Cheol Park,

Byoung Yoon Kim

Publication year - 2007

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.15.012362

Subject(s) - optics , birefringence , materials science , polarization (electrochemistry) , polarization maintaining optical fiber , polarizing filter , wavelength , mode coupling , optical filter , optical fiber , bandwidth (computing) , optoelectronics , fiber optic sensor , physics , telecommunications , chemistry , computer science

We demonstrate an all-fiber tunable polarization filter with high coupling efficiency based on acousto-optic coupling between two optical polarization modes of the LP(01) mode propagating in a highly birefringent single mode optical fiber. An over-coupling between the two polarization modes is realized over the wavelength range from 1530 nm to 1610 nm using traveling torsional acoustic wave. The measured 3-dB optical bandwidth of the filter was 4.8 nm at the wavelength around 1550 nm. The details of the filter transmission and the coupling characteristics are discussed.

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