Analysis of 160 Gb/s all-optical NRZ-to-RZ data format conversion using quantum-dot semiconductor optical amplifiers assisted Mach-Zehnder interferometer

作者：Yang Wei^*; Zhang Min; Ye Peida

来源：Optics Communications, 2009, 282(9): 1744-1750.

DOI：10.1016/j.optcom.2009.01.055

• Format conversion
• Nonreturn-to-zero
• Return-to-zero
• Quantum-dot semiconductor optical amplifiers

A scheme of all-optical data format conversion from nonreturn-to-zero to return-to-zero is proposed using quantum-dot semiconductor optical amplifiers (QD SOAs) assisted Mach-Zehnder interferometer (MZI). The proposed scheme has the potential to operate at much larger bit rate similar to 160 Gb/s, and the converted signal has a lower frequency chirp. 160 Gb/s all-optical format conversion is verified through numerical simulations, and the output contrast ratio and Q-factor are analyzed to evaluate the system performance. With properly selected parameters, the converted signal with a contrast ratio over 8 dB and a Q-factor over 8 can be achieved.

• 出版日期2009-5-1
• 单位北京邮电大学