Abstract
We investigate the effect of packet transmission, i.e., noncontinuous
transmission of light, on polarization control for various traffic patterns
and loads. Time between feedback signal samples, where a packet is present,
i.e., when feedback is available, becomes a statistical quantity in
asynchronous networks. By simulations we characterize the polarization state
fluctuations occurring between valid samples when packet interarrival time
is random and exponentially distributed. We quantify dynamic polarization
control performance in this situation. Worst-case polarization state
fluctuations between valid samples can reach 30$^{\circ}$ and beyond, compared to max ${\sim} {\hbox {2.5}}^{\circ}$ rotation in a sample time interval with continuous light. As a
rule of thumb, polarization control is possible when packet lengths are
smaller than or comparable to the time scale of the polarization
fluctuations, even for traffic loads as low as 10%. Examples are links
carrying asynchronous IP packet traffic at bit rates of 2.5 Gb/s or higher,
with worst-case polarization fluctuations on the order of
microseconds.
© 2009 IEEE
PDF Article
More Like This
Cited By
You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Login to access Optica Member Subscription
Add to BibSonomy