Title :
Performance implications of three-mirror Fabry-Perot demultiplexers for 10-Gb/s WDM dispersion-supported transmission with 0.5-nm channel spacing
Author :
Freire, Mário M. ; De Carvalho, Álvaro M F ; Silva, Henrique J A da
Author_Institution :
Dept. of Electr. Eng., Coimbra Univ., Portugal
Abstract :
This letter assesses the performance of dispersion-supported transmission (DST) for three 10-Gb/s WDM channels separated 0.5 nm, using a three-mirror Fabry-Perot demultiplexer. It is shown that the use of three-mirror demultiplexers reduces the crosstalk penalty to less than 1 dB in the region of small linear increase of dispersion penalty of the DST method, while double-cavity Fabry-Perot demultiplexers are less suitable to operate at this channel spacing. Compared with published performance studies for WDM-DST systems with 1 nm of channel spacing, these results indicate the channel spacing may be cut in a half, if a three-mirror filter is used as demultiplexer.
Keywords :
Fabry-Perot resonators; demultiplexing equipment; frequency response; mirrors; optical crosstalk; optical fibre communication; optical fibre dispersion; optical filters; wavelength division multiplexing; 10 Gbit/s; DST method; Gb/s WDM channels; Gb/s WDM dispersion-supported transmission; channel spacing; crosstalk penalty; dispersion penalty; dispersion-supported transmission; double-cavity Fabry-Perot demultiplexers; nm channel spacing; three-mirror Fabry-Perot demultiplexer; three-mirror filter; Band pass filters; Channel spacing; Fabry-Perot; Frequency response; Mirrors; Optical fiber polarization; Shape measurement; System performance; Transfer functions; Wavelength division multiplexing;
Journal_Title :
Photonics Technology Letters, IEEE
