22-04-2014, 11:01 AM
BER ANALYSIS OF AN OPTICAL CROSS-CONNECT DUE TO CROSS TALK IN DWDM SYSTEM
DWDM SYSTEM.doc (Size: 54 KB / Downloads: 15)
ABSTRACT
Optical Wavelength Division Multiplexing(WDM) network are very promising networks because of their large bandwidth, greater felxibiliy and big possibility to upgrade the existin g fiber networks to WDM networks. But their performance depends on many devices. One of the device is optical crossconnect
Optical Crossconnects (OXC) can work on optical domain or electrical domain and connect the channels. Various topologies of OXCs have been developed but their uses are limited, with a small number of input-output fibers and wavelength channels. In practical system, many signals and wavelength channels could influence each other and cause significant crosstalk in the OXCs. The intraband crosstalk gives to an increased in the bit error probability. This type of crosstalk degrade network performance.
In this research I will be analysizing the Bit Error Rate(BER) as a function of different input power under different levels of crosstalk.
introduction
Optical Wavelength Division Multiplexing(WDM) network are very promising networks because of their large bandwidth, greater felxibiliy and big possibility to upgrade the existin g fiber networks to WDM networks. DWDM is a fiber-optic transmission technique that employs light wavelengths to transmit data parallel-by-bit or serial-by-character. DWDM puts together large number of signals and send them at the sametime along a fiber, with transmission taking place at different wavelengths. These fibers can transmit at speeds of upto 400 gigabits per second.
Optical Crossconnects (OXC) are the important devices in optical communication. Some OCX's works on optical domain and connects optical channels directly in the photonic domain. This is known as photonic switching or transparent OXCs. Whereas hybrid OXCs work on electrical domain. Various topologies of OXCs have been developed but their uses are limited, with a small number of input-output fibers and wavelength channels[ ]. In practical system, many signals and wavelength channels could influence each other and cause significant crosstalk in the OXCs , this fact has probably prevented the wide spread use of OXCs in the commercial system[ ]. This crosstalk gives to an increased in the bit error probability. The more dominant crosstalk is intraband crosstalk. This is the cross-talk within the same wavelength slot. This type of crosstalk gegrade network performance.
Sub-Sub-Heading
Use Heading 3 from the selection of styles on the menu bar above. Do NOT use all capitals, but write as is shown above. Do not use anything else as the Table of Contents has been automated to include this style for a sub-subheading.
Referencing
When do your referencing, use the automatic system provided by Microsoft Word. To use this, from the Menu bar, go to Insert > Reference > Footnote. Now select Endnote > end of document. For the options, select Number format > 1, 2, 3; Custom mark > leave blank; Start at > 1; Numbering > continuous. If you do this, you will see a superscript inserted at the point of your cursor, as in this example, with the cursor automatically going to the end of your document for you to insert your reference detailsi. This keeps a continuous numbering system as you progress through your proposal. Once you are done, you could move this from the last page to the last page before the Appendices.