基于高非线性光纤中四波混频效应的光信噪比监测方式
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摘要
光通信系统正由传统的点对点通信形式向着智能化光网络的方向发展。为了实现智能化光网络的灵活性等特点,在光网络中采用了可重构光分插复用器(ROADM),但是这些变化给目前的光信号质量监测提出了新的挑战,尤其是光信噪比(OSNR)的监测。因为传统的带外OSNR监测方式已经不能准确的监测出实际的OSNR,需要迫切研究新型的带内OSNR监测方式,这也就是本论文研究的意义。
本文提出了一种基于高非线性光纤中四波混频效应的带内OSNR监测方式,并通过仿真模拟其监测效果,此外还仿真了利用级联四波混频效应带内OSNR监测方式,验证了这两种监测方式的可行性。本文主要工作如下：
(1)对于智能化光网络的发展进行了综述,表明了传统的带外OSNR监测方式在智能化光网络中所存在的问题和研究带内OSNR监测方式的重要性。
(2)分析了目前主要的带内OSNR监测方式及其各自基本原理,并指出各个方式中可能存在的问题。
(3)研究了高非线性光纤中四波混频的基本理论。介绍了其起因与基本原理。随后从非线性薛定谔方程出发,推导了描述四波混频过程的耦合波方程组,并建立四波混频的仿真模型。
(4)提出了基于高非线性光纤的四波混频效应OSNR监测方式,并阐述了其基本原理。随后在仿真模型上模拟了其OSNR监测过程,结果显示一般可以实现0-15dB范围的监测,并对其监测效果进行了分析。
(5)提出了基于级联四波混频的OSNR监测方式,并阐述了其基本原理。通过仿真模拟了其OSNR监测过程,结果显示一般可以实现0-20dB范围的监测。最后,对监测效果进行了优化。
Intelligent optical network plays an important role in the future optical telecommunication network, which will take the place of the point to point communication today. In order to meet the flexibility and other features, ROADM is used, which brings a new challenge to optical performance monitoring, especially OSNR monitoring. As the traditional out-band OSNR monitoring can not gain the true OSNR value, the in-band OSNR monitoring method should be developed.
In this article, one in-band OSNR monitoring method based FWM in HNLF is presented. In addition, the in-band OSNR monitoring method based on cascaded FWM also be demonstrated, and both of them are verified through simulation. The main work of this article is summarized in the following:
(1) The development of intelligent optical network is introduced, and the drawback of out-band OSNR monitoring and the importance of in-band OSNR monitoring are demonstrated.
(2) The main methods about in-band OSNR monitoring and their principle are analyzed, and the potential problem of each is pointed out.
(3) The basic principle of FWM in HNLF and the related basic theory was introduced. Then the coupled amplitude equations are induced from non-linear Schrodinger equation, and build the FWM model on them.
(4) The In-band OSNR monitoring method based on FWM in HNLF is proposed, and the basic principle was explained. The OSNR monitoring process was simulated, and it can commonly achieve 0dB-15dB range OSNR monitoring.
(5) One in-band OSNR monitoring method based on cascaded FWM is presented. From the simulation, it shows a 0dB-20dB OSNR montitoring range. Finially, the monitoring pefermonce is optimized.
本文提出了一种基于高非线性光纤中四波混频效应的带内OSNR监测方式,并通过仿真模拟其监测效果,此外还仿真了利用级联四波混频效应带内OSNR监测方式,验证了这两种监测方式的可行性。本文主要工作如下：
(1)对于智能化光网络的发展进行了综述,表明了传统的带外OSNR监测方式在智能化光网络中所存在的问题和研究带内OSNR监测方式的重要性。
(2)分析了目前主要的带内OSNR监测方式及其各自基本原理,并指出各个方式中可能存在的问题。
(3)研究了高非线性光纤中四波混频的基本理论。介绍了其起因与基本原理。随后从非线性薛定谔方程出发,推导了描述四波混频过程的耦合波方程组,并建立四波混频的仿真模型。
(4)提出了基于高非线性光纤的四波混频效应OSNR监测方式,并阐述了其基本原理。随后在仿真模型上模拟了其OSNR监测过程,结果显示一般可以实现0-15dB范围的监测,并对其监测效果进行了分析。
(5)提出了基于级联四波混频的OSNR监测方式,并阐述了其基本原理。通过仿真模拟了其OSNR监测过程,结果显示一般可以实现0-20dB范围的监测。最后,对监测效果进行了优化。
Intelligent optical network plays an important role in the future optical telecommunication network, which will take the place of the point to point communication today. In order to meet the flexibility and other features, ROADM is used, which brings a new challenge to optical performance monitoring, especially OSNR monitoring. As the traditional out-band OSNR monitoring can not gain the true OSNR value, the in-band OSNR monitoring method should be developed.
In this article, one in-band OSNR monitoring method based FWM in HNLF is presented. In addition, the in-band OSNR monitoring method based on cascaded FWM also be demonstrated, and both of them are verified through simulation. The main work of this article is summarized in the following:
(1) The development of intelligent optical network is introduced, and the drawback of out-band OSNR monitoring and the importance of in-band OSNR monitoring are demonstrated.
(2) The main methods about in-band OSNR monitoring and their principle are analyzed, and the potential problem of each is pointed out.
(3) The basic principle of FWM in HNLF and the related basic theory was introduced. Then the coupled amplitude equations are induced from non-linear Schrodinger equation, and build the FWM model on them.
(4) The In-band OSNR monitoring method based on FWM in HNLF is proposed, and the basic principle was explained. The OSNR monitoring process was simulated, and it can commonly achieve 0dB-15dB range OSNR monitoring.
(5) One in-band OSNR monitoring method based on cascaded FWM is presented. From the simulation, it shows a 0dB-20dB OSNR montitoring range. Finially, the monitoring pefermonce is optimized.
引文
[1]S. L. Woodward, "Monitors to ensure the performance of photonic networks", In:Conference on optical fiber communications, Anaheim,2007, paper OMM.
[2]A. M. Saleh, J. M. Simmons, "Evolution toward the next-generation core optical network", Journal of Lightwave Technology,24(9),2006, pp.3303-21.
[3]吴承治, “探讨用于网格的光网络技术”,现代传输,1,2009,pp.63-75.
[4]钟磊,"ROADM技术在光网络中的应用”,电力系统通信,29(187),2008,pp.43-45.
[5]Y. C. Chung, "Optical performance monitoring techniques:current status and future challenges ", In:European conference on optical communications, Brussels, 2008, paper We.1.D.1.
[6]D. C. Kilper, R. Bach, D. J. Blumenthal et al. "Optical performance monitoring", Journal of Lightwave Technology,22(1),2004, pp.294-304.
[7]金晶, “准相位匹配光纤参量放大器平坦性的研究”,[硕士论文],杭州电子科技大学,2009
[8]Desurvire Emmanuel, Erbium-Doped Fiber Amplifiers, Principles and Applications, New York:John Wiley & Sons,1994.
[9]严志军,黄会玲,"40Gbit/s技术应用探讨”,湖北师范学院学报(自然科学版),26(4),2006,pp.76-79
[10]J. P. Gordon, H. J. Kogelnik, "PMD Fundamentals:Polarization Mode Dispersion in Optical Fibers", National Academy of Sciences,97(9),2000, pp. 4541-4550.
[11]G. P. Agrawal, Fiber-optic communication systems (3rd Edition), New York: John Wiley & Sons,2002, pp.226-278.
[12]K. Asahi, M. Yamashita, T. Hosoi etal. "Optical performance monitor built into EDFA repeaters for WDM networks", In:Optical Fiber Communication Conference and Exhibit, San Jose,1998.
[13]H. Suzuki, N. Takachio, "Optical signal quality monitor built into WDM linear repeaters using semiconductor arrayed waveguide grating filter monolithically integrated with eight photodiodes", Electronics Letters,35(10),1999, pp.836-837.
[14]Chen Wenlu, Zhong Shan, Zhu Zhonghua etal. "Adding OSNR monitoring functionality on AWG based power monitoring circuits", In:Optical Fiber Communication Conference and Exhibit, Anaheim,2002, pp.668-670
[15]J.H. Lee, D. K. Jung, C. H. Kim, Y. C. Chung. "OSNR monitoring technique using polarization-nulling method", Photonics Technology Letters,13(1),2001, pp.88-89
[16]J. H. Lee, Y. C. Chung, "Improved OSNR monitoring technique based on polarization-nulling method", Electronics Letters,2001,37(15), pp.972-973.
[17]M. Petersson, H. Sunnerud, M. Karlsson, B. E. Olsson. "Performance monitoring in optical networks using Stokes parameters", Photonics Technology Letters,16(2),2004, pp.686-688.
[18]Z. Tao, Z. Chen, L. Fu etal. "A novel method to monitor OSNR using a Mach-Zehnder interferometer", In:Conference on lasers and electro optics, Baltimore,2001, paper ThB2-4.
[19]S. K. Shin, K. J. Park, Y. C. Chung, "A novel optical signal-to-noise ratio monitoring technique for WDIM networks", In:Optical fiber communication conference, Baltimore,2000, paper WK6.
[20]C. J. Youn, S. K. Shin, K. J. Park, "OSNR monitoring technique using high-frequency", In:Asia-pacific optical and wireless communications, Beijing, 2001, pp.4584-03.
[21]C. J. Youn, K. J. Park, J. H. Lee, "OSNR monitoring technique based on orthogonal delayed-homodyne method ", Photonics Technology Letters,14(10),2002, pp.1469-1471
[22]J. H. Lee,N. Yoshikane, T. Tsuritani, "In-band OSNR monitoring technique based on link-by-link estimation for dynamic transparent optical networks ", Journal of Lightwave Technology,26(10),2008, pp.1217-1225.
[23]李燕, “双包层光子晶体光纤激光器及波长转换器研究”,[硕士论文],南开大学,2007.
[24]Govind P.Agrawal,贾东方等(译),非线性光纤光学原理及应用,电子工业出版社,2002,pp.259-260
[25]M. Matsumoto, "Regeneration of RZ-DPSK signals by fiber-based all-optical regenerators", Photonics Technology Letters,17(5),2005, pp.1055-1057
[26]M. Matsumoto, "A Fiber-Based All-Optical 3R Regenerator for DPSK Signals", Photonics Technology Letters,19(5),2007, pp.273-275.
[27]E. Ciaramella, S. Trillo, "All-optical signal reshaping via four-wave mixing in optical fibers", Photonics Technology Letters,12(07),2000, pp.849-851.
[2]A. M. Saleh, J. M. Simmons, "Evolution toward the next-generation core optical network", Journal of Lightwave Technology,24(9),2006, pp.3303-21.
[3]吴承治, “探讨用于网格的光网络技术”,现代传输,1,2009,pp.63-75.
[4]钟磊,"ROADM技术在光网络中的应用”,电力系统通信,29(187),2008,pp.43-45.
[5]Y. C. Chung, "Optical performance monitoring techniques:current status and future challenges ", In:European conference on optical communications, Brussels, 2008, paper We.1.D.1.
[6]D. C. Kilper, R. Bach, D. J. Blumenthal et al. "Optical performance monitoring", Journal of Lightwave Technology,22(1),2004, pp.294-304.
[7]金晶, “准相位匹配光纤参量放大器平坦性的研究”,[硕士论文],杭州电子科技大学,2009
[8]Desurvire Emmanuel, Erbium-Doped Fiber Amplifiers, Principles and Applications, New York:John Wiley & Sons,1994.
[9]严志军,黄会玲,"40Gbit/s技术应用探讨”,湖北师范学院学报(自然科学版),26(4),2006,pp.76-79
[10]J. P. Gordon, H. J. Kogelnik, "PMD Fundamentals:Polarization Mode Dispersion in Optical Fibers", National Academy of Sciences,97(9),2000, pp. 4541-4550.
[11]G. P. Agrawal, Fiber-optic communication systems (3rd Edition), New York: John Wiley & Sons,2002, pp.226-278.
[12]K. Asahi, M. Yamashita, T. Hosoi etal. "Optical performance monitor built into EDFA repeaters for WDM networks", In:Optical Fiber Communication Conference and Exhibit, San Jose,1998.
[13]H. Suzuki, N. Takachio, "Optical signal quality monitor built into WDM linear repeaters using semiconductor arrayed waveguide grating filter monolithically integrated with eight photodiodes", Electronics Letters,35(10),1999, pp.836-837.
[14]Chen Wenlu, Zhong Shan, Zhu Zhonghua etal. "Adding OSNR monitoring functionality on AWG based power monitoring circuits", In:Optical Fiber Communication Conference and Exhibit, Anaheim,2002, pp.668-670
[15]J.H. Lee, D. K. Jung, C. H. Kim, Y. C. Chung. "OSNR monitoring technique using polarization-nulling method", Photonics Technology Letters,13(1),2001, pp.88-89
[16]J. H. Lee, Y. C. Chung, "Improved OSNR monitoring technique based on polarization-nulling method", Electronics Letters,2001,37(15), pp.972-973.
[17]M. Petersson, H. Sunnerud, M. Karlsson, B. E. Olsson. "Performance monitoring in optical networks using Stokes parameters", Photonics Technology Letters,16(2),2004, pp.686-688.
[18]Z. Tao, Z. Chen, L. Fu etal. "A novel method to monitor OSNR using a Mach-Zehnder interferometer", In:Conference on lasers and electro optics, Baltimore,2001, paper ThB2-4.
[19]S. K. Shin, K. J. Park, Y. C. Chung, "A novel optical signal-to-noise ratio monitoring technique for WDIM networks", In:Optical fiber communication conference, Baltimore,2000, paper WK6.
[20]C. J. Youn, S. K. Shin, K. J. Park, "OSNR monitoring technique using high-frequency", In:Asia-pacific optical and wireless communications, Beijing, 2001, pp.4584-03.
[21]C. J. Youn, K. J. Park, J. H. Lee, "OSNR monitoring technique based on orthogonal delayed-homodyne method ", Photonics Technology Letters,14(10),2002, pp.1469-1471
[22]J. H. Lee,N. Yoshikane, T. Tsuritani, "In-band OSNR monitoring technique based on link-by-link estimation for dynamic transparent optical networks ", Journal of Lightwave Technology,26(10),2008, pp.1217-1225.
[23]李燕, “双包层光子晶体光纤激光器及波长转换器研究”,[硕士论文],南开大学,2007.
[24]Govind P.Agrawal,贾东方等(译),非线性光纤光学原理及应用,电子工业出版社,2002,pp.259-260
[25]M. Matsumoto, "Regeneration of RZ-DPSK signals by fiber-based all-optical regenerators", Photonics Technology Letters,17(5),2005, pp.1055-1057
[26]M. Matsumoto, "A Fiber-Based All-Optical 3R Regenerator for DPSK Signals", Photonics Technology Letters,19(5),2007, pp.273-275.
[27]E. Ciaramella, S. Trillo, "All-optical signal reshaping via four-wave mixing in optical fibers", Photonics Technology Letters,12(07),2000, pp.849-851.