基于SLALOM的高速光串并转换技术研究
发布时间：2019-01-06 18:04
【摘要】：当前光网络中传输能力和交换能力的不匹配已经严重影响其进一步应用。而利用全光串并转换器(All-Optical Serial-to-Parallel Converter,AOSPC)将高速串行的光信号转换为多路低速并行的光信号,然后再进行处理和交换是一种有效的解决方案。由于具有响应速度快、易集成、稳定度高等优点,半导体光放大器环路镜(Semiconductor Laser Amplifier in a Loop Mirror,SLALOM)已经得到了越来越多的关注。本文以SLALOM为研究基础,开展了全光域内的串并转换相关技术研究,并取得了如下研究成果:首先,在分析半导体光放大器(Semiconductor Optical Amplifier,SOA)工作特性的基础上,提出了一种基于SLALOM的级联型AOSPC。该方案采用级联SLALOM的结构,以上一级SLALOM的输出作为下一级SLALOM的输入,将各级SLALOM之间的传播延迟设置为输入信号的比特周期,通过设置控制光与信号光之间的时序,实现光开关的窗口的周期性打开,以此完成各级SLALOM光脉冲的并行输出。在仿真软件Optiwave中实现了利用1?10光串并转换器将80Gb/s高速串行光信号转换为10路8Gb/s并行输出信号。Optiwave仿真结果表明输出信号眼图张开度好,且1×10 AOSPC的端口接收灵敏度差异小于10dB。其次,针对级联型AOSPC中噪声累积导致输出信号质量恶化的问题,提出了一种基于SLALOM的混合型AOSPC,该方案采用由M行、N列SLALOM搭建的串并混合结构,可以实现1路信号到M?N路信号的串并转换。仿真实现了利用4?4的混合型AOSPC将80Gb/s高速串行光信号得到16路5Gb/s并行输出信号。该方案的优点在于在保证输出信号质量的前提下,提高了串并转换结构输出端口的可扩展性。最后,提出了一种基于Add-Drop型微环谐振腔的级联型AOSPC,它通过串联N个Add-Drop型微环谐振腔组成级联型AOSPC,并在微环谐振腔之间加入与输入信号传输速率相关的传播延时,并设置泵浦光脉冲信号的周期为串行输入信号脉冲间隔的N倍,通过控制泵浦光脉冲的到来,实现N路并行信号的输出。在仿真软件VPI中实现了利用1?4光串并转换器将10Gb/s串行光信号转换为4路2.5Gb/s并行输出信号,且输出信号消光比为10dB。最后进行了Add-Drop型微环谐振腔的光开关实验,为其AOSPC方案提供了实验依据。
[Abstract]:The mismatch of transmission capacity and switching capacity in optical networks has seriously affected its further application. It is an effective solution to convert high speed serial optical signal into multichannel low speed parallel optical signal by all optical series-parallel converter (All-Optical Serial-to-Parallel Converter,AOSPC), and then process and exchange it. Semiconductor optical amplifier loop mirror (Semiconductor Laser Amplifier in a Loop Mirror,SLALOM) has attracted more and more attention due to its advantages of fast response, easy integration and high stability. Based on the research of SLALOM, the related techniques of series-parallel conversion in optical domain are studied in this paper, and the following research results are obtained: firstly, based on the analysis of the characteristics of semiconductor optical amplifier (Semiconductor Optical Amplifier,SOA), A cascade AOSPC. based on SLALOM is proposed. In this scheme, the structure of cascaded SLALOM is adopted, and the output of SLALOM is used as the input of the next SLALOM. The propagation delay between the SLALOM at all levels is set as the bit period of the input signal, and the timing between the light and the signal light is controlled by setting the time sequence. The window of optical switch is opened periodically so that the parallel output of SLALOM optical pulse at all levels can be completed. In the simulation software Optiwave, the high speed serial optical signal of 80Gb/s is converted into 10 parallel output signals of 8Gb/s by using 1 / 10 optical series-parallel converter. The Optiwave simulation results show that the output signal has good eye opening. The sensitivity difference of 1 脳 10 AOSPC port is less than 10 dB. Secondly, aiming at the problem that noise accumulation in cascaded AOSPC leads to the deterioration of output signal quality, a hybrid AOSPC, scheme based on SLALOM is proposed. The scheme adopts a series-parallel hybrid structure constructed from M-row, N-column SLALOM. It can realize the serial parallel conversion from 1 channel signal to Mon N channel signal. The 16 parallel output signals of 80Gb/s are obtained by using the 80Gb/s high speed serial optical signal using the hybrid AOSPC of 4 + 4. The advantage of this scheme is that the extensibility of the output port is improved under the premise of guaranteeing the output signal quality. Finally, a cascade AOSPC, based on Add-Drop microring resonator is proposed, which is composed of cascaded AOSPC, via N Add-Drop microring resonators in series, and the propagation delay related to the transmission rate of the input signal is added between the microring resonators. The period of the pump pulse signal is N times of the pulse interval of the serial input signal. By controlling the arrival of the pump light pulse, the output of the N channel parallel signal is realized. In the simulation software VPI, the serial optical signal of 10Gb/s is converted into four parallel output signals of 2.5Gb/s by using 1 / 4 optical series-parallel converter, and the extinction ratio of output signal is 10 dB. Finally, the optical switch experiment of Add-Drop microring resonator is carried out, which provides the experimental basis for its AOSPC scheme.
【学位授予单位】：电子科技大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TN929.1
本文编号：2403137
[Abstract]:The mismatch of transmission capacity and switching capacity in optical networks has seriously affected its further application. It is an effective solution to convert high speed serial optical signal into multichannel low speed parallel optical signal by all optical series-parallel converter (All-Optical Serial-to-Parallel Converter,AOSPC), and then process and exchange it. Semiconductor optical amplifier loop mirror (Semiconductor Laser Amplifier in a Loop Mirror,SLALOM) has attracted more and more attention due to its advantages of fast response, easy integration and high stability. Based on the research of SLALOM, the related techniques of series-parallel conversion in optical domain are studied in this paper, and the following research results are obtained: firstly, based on the analysis of the characteristics of semiconductor optical amplifier (Semiconductor Optical Amplifier,SOA), A cascade AOSPC. based on SLALOM is proposed. In this scheme, the structure of cascaded SLALOM is adopted, and the output of SLALOM is used as the input of the next SLALOM. The propagation delay between the SLALOM at all levels is set as the bit period of the input signal, and the timing between the light and the signal light is controlled by setting the time sequence. The window of optical switch is opened periodically so that the parallel output of SLALOM optical pulse at all levels can be completed. In the simulation software Optiwave, the high speed serial optical signal of 80Gb/s is converted into 10 parallel output signals of 8Gb/s by using 1 / 10 optical series-parallel converter. The Optiwave simulation results show that the output signal has good eye opening. The sensitivity difference of 1 脳 10 AOSPC port is less than 10 dB. Secondly, aiming at the problem that noise accumulation in cascaded AOSPC leads to the deterioration of output signal quality, a hybrid AOSPC, scheme based on SLALOM is proposed. The scheme adopts a series-parallel hybrid structure constructed from M-row, N-column SLALOM. It can realize the serial parallel conversion from 1 channel signal to Mon N channel signal. The 16 parallel output signals of 80Gb/s are obtained by using the 80Gb/s high speed serial optical signal using the hybrid AOSPC of 4 + 4. The advantage of this scheme is that the extensibility of the output port is improved under the premise of guaranteeing the output signal quality. Finally, a cascade AOSPC, based on Add-Drop microring resonator is proposed, which is composed of cascaded AOSPC, via N Add-Drop microring resonators in series, and the propagation delay related to the transmission rate of the input signal is added between the microring resonators. The period of the pump pulse signal is N times of the pulse interval of the serial input signal. By controlling the arrival of the pump light pulse, the output of the N channel parallel signal is realized. In the simulation software VPI, the serial optical signal of 10Gb/s is converted into four parallel output signals of 2.5Gb/s by using 1 / 4 optical series-parallel converter, and the extinction ratio of output signal is 10 dB. Finally, the optical switch experiment of Add-Drop microring resonator is carried out, which provides the experimental basis for its AOSPC scheme.
【学位授予单位】：电子科技大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TN929.1
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