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Choosing between RF and optical automatic gain control
How automatic gain control (AGC) is implemented in the ONT receiver is critically important. Unlike the case of baseband light modulation, RF-modulated light requires special attention to distortio...
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Bend matters, Part 2: Microbending in optical fibers
Optical power loss is a significant determinant of network performance. Loss can come from a variety of sources, both environmental and man-made. One factor that can combine both environmental and ...
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Bend matters, Part 1: A look at macrobending
Wherever optical fiber is deployed, from transoceanic links to the final drop to the residential unit, protecting the optical power budget is of paramount importance. Between the exchange and termi...
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Finally FTTH blooms in Europe, but not everywhere
The number of fiber-to-the-home/building (FTTH/FTTB) connections in Europe is expected to double in the next five years, according to the latest market forecast commissioned by the FTTH Council Eur...
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New submarine cable systems target Latin America
More than a decade after submarine cable operators connected Latin America’s major markets, the region is witnessing another wave of submarine cable construction that could make it the leading unde...
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Fiber in Europe bucks economic trends
As the industry gears up for the FTTH Council Europe’s 2013 conference in London February 19-21, Lightwave European Correspondent Kurt Ruderman asked fiber-optics analyst Richard Mack of CRU Intern...
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Measuring latency in equity transactions
We’ve all heard the phrase “time is money.” Today’s evolution of data centers to distributed and cloud computing has become a key factor in network design, especially when it comes to financial mar...
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Optical network trends for 2013
If the past year could be defined by a few big headlines, one would be “Economic Crunch Hasn’t Slowed Urgency for Network Capacity.” Or how about “Network Players Constantly Evolving Business Model...
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Combining 40G DP-QPSK with 10G OOK channels on metro/regional networks
For all of the advantages of 40G coherent DP-QPSK signals in metro/regional applications, there is one hurdle that must be overcome when deploying this technology on legacy networks. Cross-phase mo...
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Real-time oscilloscope analysis for 28/32-Gbps SerDes measurements
Oscilloscope users that previously would only use sampling oscilloscopes now should also consider a real-time oscilloscope. Real-time oscilloscopes offer the advantage of making measurements in a s...
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