Abstract
A passive white light cavity (WLC) based on a fiber resonator can be used for
high-bandwidth optical data buffering. Here, we report on experimental studies of such a WLC,
employing stimulated Brillouin scattering (SBS) for producing the negative dispersion, using two
different configurations. In one configuration, an absorption peak produced by a Brillouin pump is
used. In the other configuration, two gain peaks produced by two separate Brillouin pumps are
employed. In each case, we see evidence of the WLC effect. However, the range of parameters
accessible experimentally limits the degree of the WLC effect significantly. We present a
theoretical analysis for the optimal combinations of parameters, such as a high Brillouin gain
coefficient and a low transmission loss, necessary for achieving the condition of a vanishing
group index, as required for creating an ideal WLC.
© 2013 IEEE
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