基于SOA级联滤波器的高速全光波长转换技术的研究
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摘要
半导体光放大器(SOA)以其低功耗与高非线性成为实现全光波长转换的关键器件,但由于SOA载流子恢复速度慢,波长转换速率受到码型效应的限制。而通过在SOA输出端级联光学滤波器,可以有效地抑制码型效应的影响,目前据报道已有多种类型的滤波器级联方案实现了高速波长转换。本文对SOA级联非对称马赫泽德干涉仪(AMZI)、高斯滤波器的高速波长转换方案进行了深入的理论分析与实验研究,主要研究内容如下:
(1)总结了基于SOA非线性效应的各种波长转换方案,并简要阐述了各方案的原理,分析比较了各种XPM型波长转换方案的优缺点。
(2)基于SOA的超快响应理论模型,详细分析码型效应对SOA输出探测光增益、相位以及啁啾特性的影响。结合小信号分析模型,阐述了用AMZI或高斯滤波器抑制线性码型效应的原理。接着分析了非线性码型效应对不同滤波器方案转换结果的影响,并提出了相应的解决方案。
(3)在第二章理论分析的基础上,对基于SOA交叉相位调制效应实现波长转换的三个方案:SOA级联AMZI、SOA级联失谐滤波器、SOA级联AMZI与失谐滤波器进行了优化设计,分析了AMZI分光比、相移、延时差,高斯滤波器3dB带宽、失谐量对各方案转换结果的影响。
(4)对基于SOA级联AMZI与蓝移失谐滤波器的波长转换方案进行了实验研究,实现了80Gb/s同向波长转换,并且转换光消光比相对原始信号光得到了改善。
(5)对基于SOA级联AMZI与失谐滤波器以及SOA级联AMZI与AWG的四信道多波长转换方案进行了理论研究,研究了AWG的频谱响应特性,并考察了信道间隔为200GHz的不同速率的多波长转换。
Semiconductor optical amplifier(SOA) has become the essential device to realize all-optical wavelength conversion(AOWC) because of its low power consumption and high nonlinear effects. However, the speed of AOWC is limited by patterning effect, while the patterning effect which caused by the slow recovery of the carrier could be removed by using cascading optical filter, and high speed AOWC have been realized by using different types of fiters. In this paper high speed AOWC based on cascading SOA and asymmetric Mach-Zehnder interferometer(AMZI), Guass filter is theoretically and experimentally studied. The main contents are listed as follows:
(1)Several scheme of AOWC based on nonlinear effects of SOA are summarized and explained, and several scheme based on XPM are analyzed.
(2)The pattern effect on the gain, phase and chirp of the probe light are analyzed based on ultrafast dynamic model of SOA. The scheme of linear patterning effect removed by optical filter is explained using small signal analysis, of which the nonlinear pattern effect removal technique is researched
(3)Each scheme of chapter 2 is optimized, including cascading an SOA,an AMZI or a Guass filter, or both of them. The relation between the parameters of filters and the performance of the converter is researched.
(4)Extinction ratio improvement AOWC based on cascading an SOA, an AMZI and a blue shift detuned Guass filter is experimentally studied, and 80Gb/s AOWC is realized.
(5)Both scheme of Multi-wavelength converters(MWC) based on cascading an SOA, an AMZI ,four detuned Guass filters or an AWG is theoretically researched. The spectrum response of the AWG is researched, and different speed MWC is reviewed ,of which the spacing is 200GHz.
(1)总结了基于SOA非线性效应的各种波长转换方案,并简要阐述了各方案的原理,分析比较了各种XPM型波长转换方案的优缺点。
(2)基于SOA的超快响应理论模型,详细分析码型效应对SOA输出探测光增益、相位以及啁啾特性的影响。结合小信号分析模型,阐述了用AMZI或高斯滤波器抑制线性码型效应的原理。接着分析了非线性码型效应对不同滤波器方案转换结果的影响,并提出了相应的解决方案。
(3)在第二章理论分析的基础上,对基于SOA交叉相位调制效应实现波长转换的三个方案:SOA级联AMZI、SOA级联失谐滤波器、SOA级联AMZI与失谐滤波器进行了优化设计,分析了AMZI分光比、相移、延时差,高斯滤波器3dB带宽、失谐量对各方案转换结果的影响。
(4)对基于SOA级联AMZI与蓝移失谐滤波器的波长转换方案进行了实验研究,实现了80Gb/s同向波长转换,并且转换光消光比相对原始信号光得到了改善。
(5)对基于SOA级联AMZI与失谐滤波器以及SOA级联AMZI与AWG的四信道多波长转换方案进行了理论研究,研究了AWG的频谱响应特性,并考察了信道间隔为200GHz的不同速率的多波长转换。
Semiconductor optical amplifier(SOA) has become the essential device to realize all-optical wavelength conversion(AOWC) because of its low power consumption and high nonlinear effects. However, the speed of AOWC is limited by patterning effect, while the patterning effect which caused by the slow recovery of the carrier could be removed by using cascading optical filter, and high speed AOWC have been realized by using different types of fiters. In this paper high speed AOWC based on cascading SOA and asymmetric Mach-Zehnder interferometer(AMZI), Guass filter is theoretically and experimentally studied. The main contents are listed as follows:
(1)Several scheme of AOWC based on nonlinear effects of SOA are summarized and explained, and several scheme based on XPM are analyzed.
(2)The pattern effect on the gain, phase and chirp of the probe light are analyzed based on ultrafast dynamic model of SOA. The scheme of linear patterning effect removed by optical filter is explained using small signal analysis, of which the nonlinear pattern effect removal technique is researched
(3)Each scheme of chapter 2 is optimized, including cascading an SOA,an AMZI or a Guass filter, or both of them. The relation between the parameters of filters and the performance of the converter is researched.
(4)Extinction ratio improvement AOWC based on cascading an SOA, an AMZI and a blue shift detuned Guass filter is experimentally studied, and 80Gb/s AOWC is realized.
(5)Both scheme of Multi-wavelength converters(MWC) based on cascading an SOA, an AMZI ,four detuned Guass filters or an AWG is theoretically researched. The spectrum response of the AWG is researched, and different speed MWC is reviewed ,of which the spacing is 200GHz.
引文
[1] S. J. B. Yoo Wavelength conversion technologies for WDM network applications. J. Lightwave Technology, 1996, 14(6): 955~966
[2]朱竹青,王发强,殷奎喜.全光波长转换技术在混合WDM/OTDM网络节点中的应用与实验进展.光通信技术. 2004, 28(5): 113~115
[3] Rajesh K. Pankaj. Wavelength requirements for multicasting in all-optical network. IEEE/ACM Transactions on Networking, 1999, 7(3): 414~424
[4] B. Mukherjee. WDM optical communication networks: Progress and challenges. J. Lightwave Technology, 2006(18): 1810~1824
[5] S. Sygletos, I. Tomkos, J. Leuthold. Technological challenges on the road toward transparent networking. J. Optical Networking, 2008, 7(4): 321~350
[6] Kohsuke Nishimura, Masashi Usami. All-optical wavelength conversion by electroabsorption modulator. IEEE Journal of Selected Topics in Quantum Electronics, 2005, 11: 278~284
[7] A. L. Zhang, M. S. Demokan. Broadband wavelength converter based on four-wave mixing in a highly nonlinear photonic crystal fiber. Opt. Lett, 2005, 30(18) : 2375-2377
[8]薛挺,于建,杨天新等. 1. 5μm波段基于级联二阶非线性的铌酸锂光波导全光波长变换的理论分析.物理学报, 2002, 51(1): 91~97
[9]张新亮.半导体光放大器用作全光波长转换器的研究. [博士学位论文].武汉.华中科技大学图书馆, 2000
[10]董建绩.基于单端SOA的全光波长转换器的理论和实验研究. [硕士学位论文].武汉:华中科技大学图书馆, 2006
[11] Zhang Xinliang, Huang Dexiu, Sun Junqiang, et al, Extinction ratio improvement in XGM wavelength conversion based on novel scheme. Communication Technology Proceedings, 2001: 1571~1574
[12] Y. Ben-Ezra, M. Haridim, B. I. Lenbrikov. Theoretical analysis of gain-recovery time and chirp in QD-SOA. IEEE Photonics Technology Letters, 2005, 17(9):1803~1805
[13] M. Karasek, J. Vojtech, J. Radil. Multicasting at 10Gb/s and 40 GHz using a hybrid integrated SOA Mach-Zehnder interferometer. OFC, 2009: JWA26-1~ JWA26-3
[14] Y. Ueno, M. Takahashi, S. Nakamura, et al. Control scheme for optimizing the interferometer phase bias in a Symmetric-Mach-Zehnder-Type All-optical switch. IEEE Phtonics Technology Letters, 2002, 14(12): 1692~1694
[15] Mads L. Nielsen, Jesper M?rk. Increasing the modulation bandwidth of semiconductor-optical-amplifier-based switches by using optical filtering. J. OSA, 2004, 21(9): 1606~1619
[16] Y. Ueno, S. Nakamura, K. Tajima, et al. 3. 8-THz wavelength conversion of picosecond pulses using a semiconductor delayed interference signal wavelength converter (DISC). IEEE Photonics Technol. Lett, 1998, 10(3): 346~348
[17] Na Young Kim, John C. Cartledge. Regenerative properties of 10Gb/s SOA-DI wavelength converter with practical pulse widths. OFC, 2008: OWK2-1~ OWK2-3
[18] Motoharu Matsuura, Naoto Kishi, Tetsuya Miki. Performances of a widely pulsewidth tunable multiwavelength pulse generator by a single SOA-based delay interferometric switch. Optics Express, 2005, 13(25): 10010~10021
[19] Na Young Kim, Xuefeng Tang, John C. Cartledge, et al. Design and performance of an all-optical wavelength converter based on a semiconductor optical amplifier and delay interferometer. J. Lightwave Technology, 2007, 25(12): 3730~3738
[20] J. Leuthold, B. Mikkelsen, G. Raybon. All-optical wavelength conversion between 10 and 100Gb/s with SOA delay-interference configuration. Optical and Quantum Electronics, 2001: 939~952
[21] Jun Sakaguchi, Mads L. Nielsen, Takashi Ohira, et al. Observation of small sub-pulses out of the delayed-interference signal-wavelength converter. Japanese Journal of applied physics, 2005, 44(11): 1358~1360
[22] Zhixin Chen. Simple novel all-optical wavelength converter. Optical Engineering, 2009, 48(2), 025003-1~025003-5
[23] Jianji Dong, Songnian Fu, Xinliang Zhang, et al. Analytical absolution for SOA-based all-optical wavelength conversion using transient cross-phase modulation. Photonics technology letter, 2006, 18(24): 2554~2556
[24] G. Giraut, A. M. Clarke, D. Reid, et al. Analysis of bit rate dependence up to 80Gbits of a simple wavelength converter based on XPM in a SOA and a shifted filtering. Optics Communications, 2008, 281: 5721~5738
[25] Y. Liu, E. Tangdiongga, Z. Li, et al. Error-free all-optical wavelength conversion at 160 Gbt/s using a semiconductor optical amplifier and an optical bandpass filter. J. Lightwave Technology, 2006, 24(1): 230~236
[26] Y. Liu, E. Tangdiongga, Z. Li, et al. Error-free 320Gb/s all-optical wavelength conversion using a single semiconductor optical amplifier. J. Lightwave Technology, 2007, 25(1): 103~107
[27] O. Raz, J, Herrera, H. J. S Dorren. Enhanced 40 and 80 Gb/s wavelength conversion using a rectangular shaped optical filter for both red and blue spectral slicing. Optical Express, 2009, 17(3):1184~1193
[28] Hsiao-Yun Yu, Daniel Mahgerefteh, Pak S. Cho, et al. Optimization of the frequency response of a semiconductor optical amplifier wavelength converter using a fiber bragg grating. J. Lightwave Technology, 1999, 17(2): 308~315
[29] J. Leuthold, M. Marom, J. Jaques, et al. All-optical wavelength converter based on a pulse reformatting optical filter. J. Lightwave Technology, 2004, 22(1): 186~192
[30] Jin Wang, Andrej Marculescu, Jingshi Li, et al. Pattern effect removal technique for semiconductor-optical-amplifier-based wavelength conversion. IEEE Photonics Technology Letters, 2007, 19(24): 1955~1957
[31] Zhou Enbo, Zhang Xinliang, Yu Yu, et al. Suppression of patterning effect in wavelength conversion based on transient cross-phase modulation in semiconductor optical amplifier assisted with a detuning filter. China Physic Letter, 2009, 26(3): 034213-1~034213-4
[32] K. E. Zoiros, T. Siarkos, C. S. Koikourlis. Theoretical analysis of pattern effect suppression in semiconductor optical amplifier utilizing optical delay interferometer. Optics Communications, 2008, 81: 3648~3657
[33] J. Leuthold, L. Moller, J. Jaques, et al. 160Gbit/s SOA all-optical wavelength convertion and assessment of its regenerative properties. IEEE Electronics Letters, 2004. 554~555
[34] K. Vyrsokinos, D. Apostolopoulos, P. Zakynthinos, et al. Wavelength conversion forNRZ signals with enhanced regenerative characteristics. OFC, 2009. JWS21-1~ JWS21-3
[35] J. Monlina Vazquez, Z. Li, Y. Liu, et al. Optimization of optical band-pass filters for all-optical wavelength conversion using genetic algorithms. IEEE J. Quantum Electronics, 2007, 43(1): 57~64
[36] B. Zhang, S. Kumar, L. S. Yan, et al. Extinction ratio enhancement of SOA-based delay-interference signal converter using detuned filtering. Optical Communication 2007, 280: 202~205
[37]张帆.高速全光波长转换器滤波过程的优化. [硕士学位论文].武汉.华中科技大学图书馆, 2008
[38] Y. Liu, E. Tangdiongga, H. de Waardt. Wavelength conversion using nonlinear polarization rotation in a single semiconductor optical amplifier. IEEE Photonics Technol Lett, 2003, 15(1): 90~92
[39]滕翔,张汉一,郭奕理等.基于半导体光放大器中交叉偏振调制效应的波长转换器.中国激光. 2005, 32(6): 810~814
[40] X. Yang, D, Lenstra, G. D. Khoe, et al. Nonlinear polarization retation induced by ultrashort optical pulses in a semiconductor optical amplifier. Optics Communications, 2003(223): 169~179
[41]齐江,迟楠,郑远.基于SOA双泵浦FWM全光波长变换的研究.电子学报, 2001, 29(1): 38~40
[42] A. Mecozzi, J. Mork. Saturation induced by picosecond pulses in semiconductor optical amplifiers. J. Opt. Soc. Am. B, 1997, 14(4): 761~770
[43] Inuk Kang, Christophe Dorrer, Liming Zhang, et al. Characterization of the dynamical processes in all-optical signal processing using semiconductor optical amplifiers. IEEE J. Quantum Electronics, 2008, 14(3): 758~769
[44] Yunfeng Shen, Jun Hong Ng, Chao Lu, et al. Single to multi-wavelength conversion using amplified spontaneous emission of semiconductor optical amplifier. OFC, 2001. ME1-1~ME1-3
[45] J. L. Pleumeekers, J. Leuthold, M. Kauer, et al. All-optical wavelength conversion and broadcasting to eight separate channels by a single semiconductor opticalamplifier delay interferometer. OFC, 2002. 596~597
[46] N. Yan, J. del Val Puente, T. G. Silveira, et al. Simulation and experimental characterization of SOA-MZI-Based multi-wavelength conversion. J. Lightwave Technology, 2009, 27(2): 117~127
[47] Litai Zhang, Jinlong Yu, Hao Hu, et al. Regenerative multi-wavelength conversion at 4×10-Gbit/s using a single SOA. Microwave And Optical Technology, 2009, 51(2): 466~469
[48] L. Xu, N. Chi, K. Yvind, et al. 7×40 Gb/s base-rate RZ all-optical broadcasting utilizing an electroabsorption modulator. Optics Express, 2004, 12(3): 416~420
[49] N. Yan, A. Teixeira, T. Silveira, et al. Optical multicasting performance evaluation using multi-wavelength conversion by four-wave mixing in DSF at 10/20/40 Gb/s for optical layer multicast. Microwave and Optical Technology Letters, 2007, 49(5): 1067~1071
[50]鲁平.新型阵列波导器件的理论与实验研究. [博士学位论文].武汉.华中科技大学图书馆, 2005
[51]郭福源,王明华.阵列波导光栅解复用器光谱响应特性分析.光学工程, 2006, 33(10): 49~55
[2]朱竹青,王发强,殷奎喜.全光波长转换技术在混合WDM/OTDM网络节点中的应用与实验进展.光通信技术. 2004, 28(5): 113~115
[3] Rajesh K. Pankaj. Wavelength requirements for multicasting in all-optical network. IEEE/ACM Transactions on Networking, 1999, 7(3): 414~424
[4] B. Mukherjee. WDM optical communication networks: Progress and challenges. J. Lightwave Technology, 2006(18): 1810~1824
[5] S. Sygletos, I. Tomkos, J. Leuthold. Technological challenges on the road toward transparent networking. J. Optical Networking, 2008, 7(4): 321~350
[6] Kohsuke Nishimura, Masashi Usami. All-optical wavelength conversion by electroabsorption modulator. IEEE Journal of Selected Topics in Quantum Electronics, 2005, 11: 278~284
[7] A. L. Zhang, M. S. Demokan. Broadband wavelength converter based on four-wave mixing in a highly nonlinear photonic crystal fiber. Opt. Lett, 2005, 30(18) : 2375-2377
[8]薛挺,于建,杨天新等. 1. 5μm波段基于级联二阶非线性的铌酸锂光波导全光波长变换的理论分析.物理学报, 2002, 51(1): 91~97
[9]张新亮.半导体光放大器用作全光波长转换器的研究. [博士学位论文].武汉.华中科技大学图书馆, 2000
[10]董建绩.基于单端SOA的全光波长转换器的理论和实验研究. [硕士学位论文].武汉:华中科技大学图书馆, 2006
[11] Zhang Xinliang, Huang Dexiu, Sun Junqiang, et al, Extinction ratio improvement in XGM wavelength conversion based on novel scheme. Communication Technology Proceedings, 2001: 1571~1574
[12] Y. Ben-Ezra, M. Haridim, B. I. Lenbrikov. Theoretical analysis of gain-recovery time and chirp in QD-SOA. IEEE Photonics Technology Letters, 2005, 17(9):1803~1805
[13] M. Karasek, J. Vojtech, J. Radil. Multicasting at 10Gb/s and 40 GHz using a hybrid integrated SOA Mach-Zehnder interferometer. OFC, 2009: JWA26-1~ JWA26-3
[14] Y. Ueno, M. Takahashi, S. Nakamura, et al. Control scheme for optimizing the interferometer phase bias in a Symmetric-Mach-Zehnder-Type All-optical switch. IEEE Phtonics Technology Letters, 2002, 14(12): 1692~1694
[15] Mads L. Nielsen, Jesper M?rk. Increasing the modulation bandwidth of semiconductor-optical-amplifier-based switches by using optical filtering. J. OSA, 2004, 21(9): 1606~1619
[16] Y. Ueno, S. Nakamura, K. Tajima, et al. 3. 8-THz wavelength conversion of picosecond pulses using a semiconductor delayed interference signal wavelength converter (DISC). IEEE Photonics Technol. Lett, 1998, 10(3): 346~348
[17] Na Young Kim, John C. Cartledge. Regenerative properties of 10Gb/s SOA-DI wavelength converter with practical pulse widths. OFC, 2008: OWK2-1~ OWK2-3
[18] Motoharu Matsuura, Naoto Kishi, Tetsuya Miki. Performances of a widely pulsewidth tunable multiwavelength pulse generator by a single SOA-based delay interferometric switch. Optics Express, 2005, 13(25): 10010~10021
[19] Na Young Kim, Xuefeng Tang, John C. Cartledge, et al. Design and performance of an all-optical wavelength converter based on a semiconductor optical amplifier and delay interferometer. J. Lightwave Technology, 2007, 25(12): 3730~3738
[20] J. Leuthold, B. Mikkelsen, G. Raybon. All-optical wavelength conversion between 10 and 100Gb/s with SOA delay-interference configuration. Optical and Quantum Electronics, 2001: 939~952
[21] Jun Sakaguchi, Mads L. Nielsen, Takashi Ohira, et al. Observation of small sub-pulses out of the delayed-interference signal-wavelength converter. Japanese Journal of applied physics, 2005, 44(11): 1358~1360
[22] Zhixin Chen. Simple novel all-optical wavelength converter. Optical Engineering, 2009, 48(2), 025003-1~025003-5
[23] Jianji Dong, Songnian Fu, Xinliang Zhang, et al. Analytical absolution for SOA-based all-optical wavelength conversion using transient cross-phase modulation. Photonics technology letter, 2006, 18(24): 2554~2556
[24] G. Giraut, A. M. Clarke, D. Reid, et al. Analysis of bit rate dependence up to 80Gbits of a simple wavelength converter based on XPM in a SOA and a shifted filtering. Optics Communications, 2008, 281: 5721~5738
[25] Y. Liu, E. Tangdiongga, Z. Li, et al. Error-free all-optical wavelength conversion at 160 Gbt/s using a semiconductor optical amplifier and an optical bandpass filter. J. Lightwave Technology, 2006, 24(1): 230~236
[26] Y. Liu, E. Tangdiongga, Z. Li, et al. Error-free 320Gb/s all-optical wavelength conversion using a single semiconductor optical amplifier. J. Lightwave Technology, 2007, 25(1): 103~107
[27] O. Raz, J, Herrera, H. J. S Dorren. Enhanced 40 and 80 Gb/s wavelength conversion using a rectangular shaped optical filter for both red and blue spectral slicing. Optical Express, 2009, 17(3):1184~1193
[28] Hsiao-Yun Yu, Daniel Mahgerefteh, Pak S. Cho, et al. Optimization of the frequency response of a semiconductor optical amplifier wavelength converter using a fiber bragg grating. J. Lightwave Technology, 1999, 17(2): 308~315
[29] J. Leuthold, M. Marom, J. Jaques, et al. All-optical wavelength converter based on a pulse reformatting optical filter. J. Lightwave Technology, 2004, 22(1): 186~192
[30] Jin Wang, Andrej Marculescu, Jingshi Li, et al. Pattern effect removal technique for semiconductor-optical-amplifier-based wavelength conversion. IEEE Photonics Technology Letters, 2007, 19(24): 1955~1957
[31] Zhou Enbo, Zhang Xinliang, Yu Yu, et al. Suppression of patterning effect in wavelength conversion based on transient cross-phase modulation in semiconductor optical amplifier assisted with a detuning filter. China Physic Letter, 2009, 26(3): 034213-1~034213-4
[32] K. E. Zoiros, T. Siarkos, C. S. Koikourlis. Theoretical analysis of pattern effect suppression in semiconductor optical amplifier utilizing optical delay interferometer. Optics Communications, 2008, 81: 3648~3657
[33] J. Leuthold, L. Moller, J. Jaques, et al. 160Gbit/s SOA all-optical wavelength convertion and assessment of its regenerative properties. IEEE Electronics Letters, 2004. 554~555
[34] K. Vyrsokinos, D. Apostolopoulos, P. Zakynthinos, et al. Wavelength conversion forNRZ signals with enhanced regenerative characteristics. OFC, 2009. JWS21-1~ JWS21-3
[35] J. Monlina Vazquez, Z. Li, Y. Liu, et al. Optimization of optical band-pass filters for all-optical wavelength conversion using genetic algorithms. IEEE J. Quantum Electronics, 2007, 43(1): 57~64
[36] B. Zhang, S. Kumar, L. S. Yan, et al. Extinction ratio enhancement of SOA-based delay-interference signal converter using detuned filtering. Optical Communication 2007, 280: 202~205
[37]张帆.高速全光波长转换器滤波过程的优化. [硕士学位论文].武汉.华中科技大学图书馆, 2008
[38] Y. Liu, E. Tangdiongga, H. de Waardt. Wavelength conversion using nonlinear polarization rotation in a single semiconductor optical amplifier. IEEE Photonics Technol Lett, 2003, 15(1): 90~92
[39]滕翔,张汉一,郭奕理等.基于半导体光放大器中交叉偏振调制效应的波长转换器.中国激光. 2005, 32(6): 810~814
[40] X. Yang, D, Lenstra, G. D. Khoe, et al. Nonlinear polarization retation induced by ultrashort optical pulses in a semiconductor optical amplifier. Optics Communications, 2003(223): 169~179
[41]齐江,迟楠,郑远.基于SOA双泵浦FWM全光波长变换的研究.电子学报, 2001, 29(1): 38~40
[42] A. Mecozzi, J. Mork. Saturation induced by picosecond pulses in semiconductor optical amplifiers. J. Opt. Soc. Am. B, 1997, 14(4): 761~770
[43] Inuk Kang, Christophe Dorrer, Liming Zhang, et al. Characterization of the dynamical processes in all-optical signal processing using semiconductor optical amplifiers. IEEE J. Quantum Electronics, 2008, 14(3): 758~769
[44] Yunfeng Shen, Jun Hong Ng, Chao Lu, et al. Single to multi-wavelength conversion using amplified spontaneous emission of semiconductor optical amplifier. OFC, 2001. ME1-1~ME1-3
[45] J. L. Pleumeekers, J. Leuthold, M. Kauer, et al. All-optical wavelength conversion and broadcasting to eight separate channels by a single semiconductor opticalamplifier delay interferometer. OFC, 2002. 596~597
[46] N. Yan, J. del Val Puente, T. G. Silveira, et al. Simulation and experimental characterization of SOA-MZI-Based multi-wavelength conversion. J. Lightwave Technology, 2009, 27(2): 117~127
[47] Litai Zhang, Jinlong Yu, Hao Hu, et al. Regenerative multi-wavelength conversion at 4×10-Gbit/s using a single SOA. Microwave And Optical Technology, 2009, 51(2): 466~469
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