A new Optical Resilient Packet Ring buffer model was introduced in this paper, end-to-end delay of packet in
Optical Resilient Packet Ring was analyzed. The computing equation for end-to-end average delay of packet
with different service priority was proposed,while fiber-delay-lines acting as transfer buffer at node.The
relationship between delay and traffic, fiber delay lines unit length is analyzed via the equation.
Optical buffer is an important component in optical switching and optical signal processing. In this paper, we present a
novel all-optical buffer based on nonlinear polarization rotation induced by injection current of semiconductor optical
amplifier. With Mueller matrix, we theoretically investigate the change of polarization state induced by nonlinear
polarization rotation in semiconductor optical amplifier. The operation of the proposed optical buffer at 2.5Gb/s is
experimentally setup. The loading and reading operations with 1024bit with this optical buffer are demonstrated.
Polarization maintenance is taken into account to give the optimum operation condition