© The Institution of Electrical Engineers
A new polarisation-insensitive and robust all-fibre-optic interferometer is outlined and demonstrated. The interferometer consists of a polarisation maintaining (PM) 3 dB coupler and a PM fibre in a simple Sagnac configuration. An insertion loss of 1.2 dB +0.1 dB and an extinction ratio better than 28 dB is obtained for an interferometer designed to have a free spectral range (FSR) of 16 GHz. Exploiting the interferometer for FM to AM conversion has high potential for overcoming dispersion limitations in long distance and highspeed optical communication systems.
References
-
-
1)
-
K. Nakagawa ,
S. Nishi ,
K. Aida ,
E. Yoneda
.
Trunk and distribution network application of erbium-doped fiber amplifier.
J. Lightwave Technol.
,
198 -
207
-
2)
-
M. Shirasaki ,
I. Yokota ,
T. Touge
.
20 Gbit/s no-chirp intensity modulation by DPSH-IM method and its fibre transmission through 330 ps/nm dispersion.
Electron. Lett.
,
33 -
35
-
3)
-
R.J.S. Pedersen ,
G. Schiellerup ,
G. Jacobsen ,
E. Bødtker
.
Direct optical characterisation of DFB lasers for CP-FSK system applications.
Electron. Lett.
,
1108 -
1110
http://iet.metastore.ingenta.com/content/journals/10.1049/el_19930982
Related content
content/journals/10.1049/el_19930982
pub_keyword,iet_inspecKeyword,pub_concept
6
6