© The Institution of Electrical Engineers
A novel polarisation-independent optical circulator, which employs two fibre-optic polarising beam splitters and two yttrium-iron-garnet (YIG) spherical lenses, is reported. The present structure has the advantage of low-loss splicing with other single-mode fibres. The insertion loss was 2.5 dB at 1.30 μm wavelength, and was almost independent of the incident polarisation angle. The backward attenuation was more than 18 dB.
References
-
-
1)
-
H. Iwamura ,
H. Iwasaki ,
K. Kubodera ,
Y. Torii ,
J. Noda
.
Simple polarisation-independent optical circulator for optical transmission systems.
Electron. Lett.
,
830 -
831
-
2)
-
I. Yokohama ,
K. Okamoto ,
J. Noda
.
Fibre-optic polarisingbeam splitter employing birefringent-fibre coupler.
Electron. Lett.
,
415 -
416
-
3)
-
T. Matsumoto
.
Polarisation-independent optical circulator coupled with multimode fibres.
Electron. Lett.
,
8 -
9
-
4)
-
Y. Sasaki ,
T. Hosaka ,
J. Noda
.
Low crosstalk polarisation-maintaining optical fibre with an 11 km length.
Electron. Lett.
,
784 -
785
-
5)
-
K. Okamoto
.
Single-polarisation operation in highly birefringent optical fibres.
Appl. Opt.
,
2638 -
2642
-
6)
-
M. Shirasaki ,
H. Kuwahara ,
T. Obokata
.
Compact polarisation-independent optical circulator.
Appl. Opt.
,
2683 -
2687
-
7)
-
I. Yokohama ,
K. Okamoto ,
J. Noda
.
Optical circulator consisting of a YIG spherical lens, PANDA-fibre polarisers and fibreoptic polarising beam splitter.
Electron. Lett.
,
746 -
748
-
8)
-
T. Sugie ,
M. Saruwatari
.
An effective nonreciprocal circuit for semiconductor laser-to-optical-fibre coupling using a YIG sphere.
IEEE J. Lightwave Technol.
,
121 -
130
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