The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
The concept of wavelength division multiplexing (WDM) has revolutionized the field of optical communications. However, the immense demand for bandwidth shows no sign of abating and is pushing service providers to deploy communication networks with increased capacity. Optical transport networks will soon require channel data rates in excess of 100 Gb/s in order to continue to meet the ever increasing...
The wavelength division multiplexed passive optical network (WDM PON) is a promising technology for next generation access networks as it provides greater bandwidth to the home, enhanced security and increased reach. One of the major obstacles to the adoption of the WDM PON architecture is the associated capital and operational expenditure required to implement such a distribution access network....
Optical transport networks will soon require channel data rates in excess of 100 Gb/s in order to continue to meet the demand for bandwidth. Bandwidth flexible optical networks, based on flex-grid ROADMs, have been proposed in the literature to support 400 Gb/s and 1 Tb/s super channels [1]. In such systems, techniques including coherent optical OFDM and Nyquist WDM transmission [2] may be employed...
The authors present a multi-carrier transmitter based on a gain switched laser employed in a next generation access network. The simple, robust and cost efficient direct modulation based comb generation technique offers closely spaced coherent channels. Each of the channels is imposed with 2.5 Gbaud data using QPSK and 16-QAM formats. The authors also present a performance comparison between the commonly...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.