Download Coarse Wavelength Division Multiplexing: Technologies and by Hans Jorg Thiele, Marcus Nebeling PDF
By Hans Jorg Thiele, Marcus Nebeling
Explaining what CWDM is, the way it is completed, and why it's going to be deployed, Coarse Wavelength department Multiplexing: applied sciences and purposes merges assurance of remoted elements of Coarse Wavelength department Multiplexing (CWDM) characteristically stumbled on as device-related or particular procedure issues. Emphasizing expense discount rates and function enhancement, the publication integrates details on part concerns, method architectures, recommendations for extensions and enhancements, in addition to useful functions right into a complete, single-volume resource.Beginning with a precis of the ITU-T criteria defining CWDM, the e-book addresses the 3 crucial part sessions, optical fibers, transceivers, and WDM filters, which mix to shape the foundation for the CWDM transmission hyperlink. the subsequent chapters comprise assurance of other architectures similar to hubbed jewelry and meshed networks, and improve paths to beat barriers of present CWDM structures. The publication outlines the feasibility of optically amplified CWDM structures, investigates the demanding situations current with high-speed CWDM and bidirectional transmission, and at last elucidates the significance of CWDM for quite a lot of purposes. each one bankruptcy offers enough details for use independently and comprises references to proper papers and articles for additional examine. The final sections of the publication specialise in functions and case experiences the place CWDM performs an ever-increasing position. They comprise large reports on networking, achieve extension by means of amplification, and the most recent thoughts of transmission skill improvements utilizing elevated bit-rates or new channel plans. choked with functional info, the e-book presents a transparent realizing of contemporary advancements within the dynamic box of CWDM.
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Extra resources for Coarse Wavelength Division Multiplexing: Technologies and Applications (Optical Science and Engineering)
695 to describe the concatenation of an optical multiplexer, an optical fiber cable, and an optical demultiplexer, along with all the associated optical connectors, patch cords, and splices. The black link model allows the optical characteristics to be defined at the single channel interface between a CWDM transceiver, typically a CWDM small form-factor pluggable (SFP) or gigabit interface converter (GBIC) transceiver* and the tributary inputs of an optical multiplexer or the tributary outputs of an optical demultiplexer.
It also specifies values for these parameters and specifies testing methods, usually by reference to IEC standards. 671 include attenuators, splitters, connectors, filters, isolators, splices, switches, dispersion compensators, multiplexers and demultiplexers, and OADMs. For CWDM multiplexers and demultiplexers, the following parameters are defined: • • • • • • • Channel insertion loss: The reduction in optical power between an input and an output of a CWDM device. Channel insertion loss deviation: The maximum variation of insertion loss across the wavelength range of a CWDM channel.
Right: 4¥10-Gb/s channels of the DWDM overlay. 25 Experimental setup for 10-Gb/s uncompensated transmission over a mixed fiber plant. 26 Dispersion of SSMF (dashed) and NZDSF (solid) across the CWDM spectrum. Dotted vertical lines indicate nominal CWDM wavelengths. 27 Optical spectrum of 10-Gb/s EA-EML and DML overlay channels after 50-km TrueWave-RS fiber. Inset: back-to-back filtered eye diagram of center DML. , Proceedings OECC 2003, paper 16E1-4, pp. 717–718. 28 Left: 16¥10-Gb/s CWDM spectrum measured after multiplexing; right: BER measurements for all 10-Gb/s channels at T = 25∞C after 40-km of simultaneous transmission over low water peak NZDSF.