Nonlinear behavior of light such as chaos can be observed during
propagation of a laser beam inside the microring resonator (MRR)
systems. This Brief highlights the design of a system of MRRs to
generate a series of logic codes. An optical soliton is used to generate
an entangled photon. The ultra-short soliton pulses provide the required
communication signals to generate a pair of polarization entangled
photons required for quantum keys. In the frequency domain, MRRs can be
used to generate optical millimetre-wave solitons with a broadband
frequency of 0-100 GHz. The soliton signals are multiplexed and
modulated with the logic codes to transmit the data via a network
system. The soliton carriers play critical roles to transmit the data
via an optical communication link and provide many applications in
secured optical communications. Therefore, transmission of data
information can be performed via a communication network using soliton
pulse carriers. A system known as optical multiplexer can be used to
increase the channel capacity and security of the signals.