DocumentCode
73151
Title
Tunable bandpass filters based on π -shifted mechanical long-period fibre gratings in two-mode fibres
Author
Sakata, H. ; Komori, K. ; Ono, Y.
Author_Institution
Dept. of Electr. & Electron. Eng., Shizuoka Univ., Hamamatsu, Japan
Volume
51
Issue
11
fYear
2015
fDate
5 28 2015
Firstpage
843
Lastpage
845
Abstract
A phase-shifted tunable long-period fibre grating in which a passband can be tuned over a wide spectral range is presented. This device is operated with an electromagnet in combination with a coil spring that includes a shift ring inserted in the middle. The passband wavelength is changed between 1520 and 1630 nm by actuating the coil spring. The minimum transmittance of the rejection band is controlled down to -15 dB by turning on the electromagnet.
Keywords
band-pass filters; coils; diffraction gratings; optical fibres; optical tuning; π-shifted mechanical long-period fibre gratings; coil spring; electromagnet; minimum transmittance; passband wavelength; phase-shifted tunable long-period fibre grating; rejection band; shift ring; tunable bandpass filters; two-mode fibres; wide spectral range;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el.2015.0635
Filename
7110778
Link To Document