Analytic Modeling of Optical Recirculating Loop to Define the Constraints of Using it as Optical Buffer

s-This paper derives an expression for nonregenerative recirculating loop and proposes a concept of modeling all-optical buffer in optical packet switches using optical recirculating loop. We simulate a generalized optical delay produced by a recirculating loop which has been used to emulate optical buffers. The theorem developed in this paper can be exploited to model all-optical recirculating buffers. The paper establishes a relation between maximum delay and maximum number of pulses. The algebraic expression has been derived with assumption that no amplifier has been used.