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Dear Readers,
Last month, we invited you to enter our Rename the Wave Contest, whose aim
was to find a new name for our newsletter. Please note that the selection
committee is still in the process of analyzing the entries and therefore
the announcement of the winner as well as the new name will be published
in the near future. In the meantime, we would like to thank you all for participating
and we look forward to presenting our revamped newsletter and awarding the
prize.
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May
2006, Volume 12, Number 5 |
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SONET/SDH vs. Ethernet: Migration and Testing Issues
Switching from SONET/SDH to Ethernet does not
guarantee that network performance will be the
same or better. To ensure that a deployed 10GigE
system delivers acceptable quality of service,
several considerations must be taken into account.
[Click here for full story] |
Thin-Film Filters in CWDM Modules: The Beauty of Free-Space Measurements
CWDM modules often contain third-party thin-film filters, and typically only 10 to 20% of these components are tested before assembly. The current test setup consists of a broadband source, an OSA and a few collimators, but these are so small that the DUT must constantly be realigned manually. This article presents our answer to this problem
[Click here for full story] |
Measuring Noise over DSL
For many years, telecom service providers
measured the power of noise on circuits to
determine their acceptability.
Once the world started to move past dial-up
modems and started to run data directly over
the copper local loop, new ways to measure
noise had to be created.
[Click here for full story] |
