Handbook of Fiber Optic Data Communication: A Practical by Casimer DeCusatis

By Casimer DeCusatis

The 4th version of this renowned guide maintains to supply an easy-to-use advisor to the numerous interesting new advancements within the box of optical fiber information communications. With ninety% new content material, this version includes all new fabric describing the transformation of the trendy facts communications community, either in the information middle and over prolonged distances among information facilities, besides most sensible practices for the layout of hugely virtualized, converged, power effective, safe, and flattened community infrastructures.

Key issues contain networks for cloud computing, software program outlined networking, built-in and embedded networking home equipment, and occasional latency networks for monetary buying and selling or different time-sensitive purposes. community architectures from the best proprietors are defined (including clever Analytic suggestions, Qfabric, FabricPath, and Exadata) in addition to the newest revisions to criteria for interoperable networks, together with lossless Ethernet, 16G Fiber Channel, RoCE, FCoE, TRILL, IEEE 802.1Qbg, and more.
• Written by means of specialists from IBM, HP, Dell, Cisco, Ciena, and sunlight/ Oracle
• Case reviews and 'How to...' demonstrations on quite a lot of issues, together with Optical Ethernet, subsequent iteration web, RDMA and Fiber Channel over Ethernet
• Quick reference tables of the entire key optical community parameters for protocols like ESCON, FICON, and SONET/ATM and a word list of technical phrases and acronyms

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Extra resources for Handbook of Fiber Optic Data Communication: A Practical Guide to Optical Networking (4th Edition)

Sample text

Commercial components work at 650 nm, with a spectral width on the order of 20 nm. Commercial RC-LED have 2 or 4 quantum wells (2QW or 4QW); in general 2QW sources are faster while 4QW sources are more powerful. On average, the typical bandwidth of an RC-LED source is on the order of 250 MHz, while the output power goes up to 0 dBm. In summary, it is worth recalling that when high-speed components are necessary, such as VCSELs and RC-LEDs, then working in the red wavelength is currently the only option.

Typically, silicon photodiodes are used with PMMA-SI-POF. 36 1 500 125 1500 high also at 650 nm; some variants that exhibit their best performance at 800 nm exist. The performance decays when working at shorter wavelengths, but the lower attenuation of fiber in green and blue is able to compensate for such decay. Typical photodiodes have an area of 500À800 µm; considering the fiber diameter of 980 µm, it is quite common to use spherical coupling lenses in the photodiode package for improving coupling efficiency.

5 dB of extra attenuation has to be considered for each 10 mm bend, while there is virtually no extra attenuation to be considered when the bending radius exceeds 25 mm. 6 Extra attenuation versus bending radius. It is worth mentioning that Rayleigh and Brillouin backscattering phenomena exist in this type of fiber as well, but their effects on communication performance are negligible. However, they both are being deeply studied for sensing applications, which are outside the scope of this chapter.

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