80 Gb/s to 10 Gb/s polarization-insensitive demultiplexing with circularlypolarized spun fiber in a two-wavelength nonlineas optical loop mirror

Citation
Jw. Lou et al., 80 Gb/s to 10 Gb/s polarization-insensitive demultiplexing with circularlypolarized spun fiber in a two-wavelength nonlineas optical loop mirror, IEEE PHOTON, 12(12), 2000, pp. 1701-1703
Citations number
6
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
IEEE PHOTONICS TECHNOLOGY LETTERS
ISSN journal
1041-1135 → ACNP
Volume
12
Issue
12
Year of publication
2000
Pages
1701 - 1703
Database
ISI
SICI code
1041-1135(200012)12:12<1701:8GT1GP>2.0.ZU;2-B
Abstract
We demonstrate the first polarization insensitive demultiplexing of 10-Gb/s channels from 80-Gb/s pseudorandom bit streams using a two-wavelength nonl inear optical loop mirror with circularly polarized spun fiber The polariza tion sensitivity of the device is reduced to <1 dB for >90% transmission, a nd bit-error-rate measurements show that the remaining polarization sensiti vity leads to a power penalty difference of 1.5 dB. The nonlinear transmiss ion is 91% for a switching energy of 4 pJ/pulse, and the full-width at half -maximum timing window is 9.6 ps, The circularly polarized spun fiber has a lambda (0) of 1541 nm, a length of similar to1 km, and similar to4.1 times higher nonlinearity than that of conventional dispersion-shifted fiber. Th e spin rate is 16 turns/m and the birefringence is Deltan similar to 1 x 10 (-6), corresponding to 25 turns/beat length.