Investigation of all-optical nonreturn-to-zero-to-return-to-zero format converter based on a semiconductor optical amplifier and a reconfigurable delayed interferometer.
Investigation of all-optical nonreturn-to-zero-to-return-to-zero format converter based on a semiconductor optical amplifier and a reconfigurable delayed interferometer.
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DOI：
10.1364/ao.49.001158
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发表时间：
2010-03
期刊：
影响因子：
1.9
通讯作者：
Xiaofan Zhao;C. Lou
中科院分区：
文献类型：
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作者：
Xiaofan Zhao;C. Lou
利用半导体光放大器（SOA）和可重构延迟干涉仪实现了一种简单、鲁棒的全光非归零到归零（RZ）格式转换器。该方案可用于对不同比特率的输入信号进行转换，并获得占空比可调的转换信号。在误码率为10（-9）的情况下，以-4.9 dB的负功率代价实现了10 Gb/s的格式转换。转换后的RZ信号在80 km的色散管理光纤链路上的传输仅导致0.9 dB的小功率损失。此外，由于SOA工作在饱和状态，因此格式转换器对光时钟的功率波动不敏感。
A simple and robust all-optical nonreturn-to-zero to return-to-zero (RZ) format converter is demonstrated and investigated using a semiconductor optical amplifier (SOA) and a reconfigurable delayed interferometer. The scheme can be used to convert input signals at different bit rates and obtain converted signals with tunable duty cycles. Format conversion at 10 Gb/s is achieved with a negative power penalty of -4.9 dB at a bit-error rate of 10(-9). Transmission of the converted RZ signal over a dispersion-managed fiber link of 80 km results in only a small power penalty of 0.9 dB. In addition, the format converter is found to be insensitive to the power fluctuation of the optical clock, as the SOA works in the saturation regime.