基于SLALOM的高速光串并轉(zhuǎn)換技術(shù)研究
發(fā)布時間：2019-01-06 18:04
【摘要】：當(dāng)前光網(wǎng)絡(luò)中傳輸能力和交換能力的不匹配已經(jīng)嚴(yán)重影響其進(jìn)一步應(yīng)用。而利用全光串并轉(zhuǎn)換器(All-Optical Serial-to-Parallel Converter,AOSPC)將高速串行的光信號轉(zhuǎn)換為多路低速并行的光信號,然后再進(jìn)行處理和交換是一種有效的解決方案。由于具有響應(yīng)速度快、易集成、穩(wěn)定度高等優(yōu)點(diǎn),半導(dǎo)體光放大器環(huán)路鏡(Semiconductor Laser Amplifier in a Loop Mirror,SLALOM)已經(jīng)得到了越來越多的關(guān)注。本文以SLALOM為研究基礎(chǔ),開展了全光域內(nèi)的串并轉(zhuǎn)換相關(guān)技術(shù)研究,并取得了如下研究成果:首先,在分析半導(dǎo)體光放大器(Semiconductor Optical Amplifier,SOA)工作特性的基礎(chǔ)上,提出了一種基于SLALOM的級聯(lián)型AOSPC。該方案采用級聯(lián)SLALOM的結(jié)構(gòu),以上一級SLALOM的輸出作為下一級SLALOM的輸入,將各級SLALOM之間的傳播延遲設(shè)置為輸入信號的比特周期,通過設(shè)置控制光與信號光之間的時序,實現(xiàn)光開關(guān)的窗口的周期性打開,以此完成各級SLALOM光脈沖的并行輸出。在仿真軟件Optiwave中實現(xiàn)了利用1?10光串并轉(zhuǎn)換器將80Gb/s高速串行光信號轉(zhuǎn)換為10路8Gb/s并行輸出信號。Optiwave仿真結(jié)果表明輸出信號眼圖張開度好,且1×10 AOSPC的端口接收靈敏度差異小于10dB。其次,針對級聯(lián)型AOSPC中噪聲累積導(dǎo)致輸出信號質(zhì)量惡化的問題,提出了一種基于SLALOM的混合型AOSPC,該方案采用由M行、N列SLALOM搭建的串并混合結(jié)構(gòu),可以實現(xiàn)1路信號到M?N路信號的串并轉(zhuǎn)換。仿真實現(xiàn)了利用4?4的混合型AOSPC將80Gb/s高速串行光信號得到16路5Gb/s并行輸出信號。該方案的優(yōu)點(diǎn)在于在保證輸出信號質(zhì)量的前提下,提高了串并轉(zhuǎn)換結(jié)構(gòu)輸出端口的可擴(kuò)展性。最后,提出了一種基于Add-Drop型微環(huán)諧振腔的級聯(lián)型AOSPC,它通過串聯(lián)N個Add-Drop型微環(huán)諧振腔組成級聯(lián)型AOSPC,并在微環(huán)諧振腔之間加入與輸入信號傳輸速率相關(guān)的傳播延時,并設(shè)置泵浦光脈沖信號的周期為串行輸入信號脈沖間隔的N倍,通過控制泵浦光脈沖的到來,實現(xiàn)N路并行信號的輸出。在仿真軟件VPI中實現(xiàn)了利用1?4光串并轉(zhuǎn)換器將10Gb/s串行光信號轉(zhuǎn)換為4路2.5Gb/s并行輸出信號,且輸出信號消光比為10dB。最后進(jìn)行了Add-Drop型微環(huán)諧振腔的光開關(guān)實驗,為其AOSPC方案提供了實驗依據(jù)。
[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.
【學(xué)位授予單位】：電子科技大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：TN929.1
本文編號：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.
【學(xué)位授予單位】：電子科技大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：TN929.1
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