All-optical modulation format conversion from on-off-keying to multiple-level phase-shift-keying based on nonlinearity in optical fiber.
All-optical modulation format conversion from on-off-keying to multiple-level phase-shift-keying based on nonlinearity in optical fiber.
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DOI：
10.1364/oe.15.008444
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发表时间：
2007-06
期刊：
影响因子：
3.8
通讯作者：
K. Mishina;S. Kitagawa;A. Maruta
中科院分区：
文献类型：
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作者：
K. Mishina;S. Kitagawa;A. Maruta
提出了一种基于光纤非线性的非归零开关键控（NRZ-OOK）到归零（RZ）多电平相移键控（PSK）的全光调制格式转换方案。建议的转换方案进行了数值研究和实验证明。我们通过实验证明了NRZ-OOK/RZ-二进制PSK转换在10.7 Gb/s下的无错误操作。NRZ-OOK/RZ-正交PSK转换的操作通过在10.7Gsymbol/s的符号速率下平衡接收之后的眼图张开来示出。此外，我们还通过数值仿真证明了从NRZ-OOK到RZ-8电平PSK调制格式转换的可行性。
We propose an all-optical modulation format conversion scheme from non-return-to-zero on-off-keying (NRZ-OOK) to return-to-zero (RZ) multiple-level phase-shift-keying (PSK) based on nonlinearity in optical fiber. The proposed conversion scheme is numerically investigated and experimentally demonstrated. We experimentally demonstrate error-free operation of NRZ-OOK/RZ- binary PSK conversion at 10.7 Gb/s. The operation of the NRZ-OOK/RZ-quadrature PSK conversion is shown by eye opening after balanced receiving at a symbol rate of 10.7 Gsymbol/s. In addition, we demonstrate the feasibility of the modulation format conversion from NRZ-OOK to RZ-8-levels PSK by numerical simulation.