Abstract
We demonstrate a novel time-resolved $Q$-factor measurement technique and demonstrate its application in
the analysis of optical packet switching systems with high information
spectral density. For the first time, we report the time-resolved $Q$-factor measurement of 42.6 Gbit/s AM-PSK and DQPSK modulated
packets, which were generated by a SGDBR laser under wavelength switching.
The time dependent degradation of $Q$-factor performance during the switching transient was analyzed
and was found to be correlated with different laser switching
characteristics in each case.
© 2010 IEEE
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