Numerical Modeling of Zero-Gain Brillouin Slow Light in a Tellurite Fiber

Abstract

We investigate numerically zero-gain Brillouin slow light in a single mode tellurite fiber. The effects of the bandwidth ratio β between the loss and gain on the pulse delay and widening are discussed in detail. Our simulated results show that, the time delay in 200 m long tellurite fiber can reach 255 ns and the corresponding widening factor of the input pulse (pulse width ∼ 20 ns) is less than 3 when the pump power is fixed at 1194.6 mW and β=10. The limitation of zero-gain slow light system is also discussed.