Abstract
We measure the half-wave voltage of LiNbO<sub>3</sub> phase modulators in a 26-GHz wideband
frequency range, and then analyze it by the phase modulation photonic peak gain linked to the
interferometric demodulation. The optical interferometer is constructed with two 50:50 couplers and
two fiber arms with a 1-m difference in fiber length. The photonic link gain peaks are frequency
dependent, as indicated by the differential time delay in the interferometer. The procedure
described is a new and practical half-wave voltage measurement method that can accurately predict
the nonlinear frequency characteristics of the phase modulator. Moreover, the method can be applied
to various types of LiNbO<sub>3</sub> phase modulators.
© 2013 Chinese Optics Letters
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