Acta Optica Sinica, Volume. 26, Issue 10, 1469(2006)
New Method for Power Equilibrium in ReCircular AllOptical Buffer Based on Semiconductor Optical Amplifier
Alloptical buffer can store the packet in optical domain without the opticalelectronicoptical conversion and becomes the important element in alloptical network. Its performance greatly influences the loss packet probability of network. But in semiconductor optical amplifier (SOA) cross phase modulation and cross gain modulation are coexisting. So in recircular alloptical buffer based on SOA, the output power between stored packet and packet without being stored is unbalanced and bit-error ratio of network increases. After analyzing the working principle of alloptical buffer, a new method for power equilibrium in recircular alloptical buffer based on SOA is presented. By changing the usual positive control pulse to negative and using an electronic variable optical attenuator, the buffer gets an uniform output power and its performance is improved markedly. This method can be applied in all recircular alloptical buffer based on SOA.
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[in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese]. New Method for Power Equilibrium in ReCircular AllOptical Buffer Based on Semiconductor Optical Amplifier[J]. Acta Optica Sinica, 2006, 26(10): 1469