Abstract
Experimental performances analysis of an optical radiofrequency signal mixer based on a
semiconductor optical amplifier Mach–Zehnder Interferometer utilizing an all-optical sampling
method is presented. An optical pulse source generating 21-ps width pulses at a repetition rate of
7.8 GHz samples an intensity-modulated optical carrier carrying an electrical subcarrier at the
intermediate frequency 1 GHz. The efficiency of the all-optical radiofrequency mixer is evaluated
in terms of mixing conversion gain and third-order input intercept point. The conversion gain
varies from 14.4 dB to 20.3 dB according to the chosen frequency. In addition, the electrical
subcarrier modulated by a Quadrature phase shift keying (QPSK) and a 16-quadrature amplitude
modulation (QAM) signal at a data rate of 1 MSymb/s has been frequency up-converted up to 40 GHz
with an error vector magnitude of 11.68% for the QPSK modulation and 10.94% for the
16-QAM.
© 2013 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