半导体激光器输出混沌光的自相关性及其带宽研究
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摘要
提出一种可用于降低半导体激光器(SL)输出混沌光的自相关性并增加其带宽的方案。该方案将具有单路相位调制光反馈的SL作为主激光器,将具有双路滤波光反馈的SL作为从激光器,并将主激光器输出的激光注入到从激光器中。数值研究了抽运因子、外光注入系数和主从激光器之间的频率失谐对从激光器输出混沌光的自相关性及其带宽的影响。结果表明:在所选的参数条件下,该方案能有效地降低从激光器输出混沌光的自相关性并增加其带宽,混沌激光带宽的极大值达到18.45 GHz。
A scheme for eliminating the autocorrelation and broadening the bandwidth of chaotic laser from semiconductor lasers( SL) is proposed. In this scheme, a SL with single-channel phase modulation optical feedback is taken as the master laser, and a SL with double-channel filter optical feedback is taken as the slave laser. The laser from the master laser is injected into the slave laser. We numerically investigate the influences of parameters, such as the pumping factor,external light injection coefficient and frequency detuning between master and slave lasers, on the autocorrelation and bandwidth of chaotic laser from slave laser. The results show that the proposed scheme can effectively reduce the autocorrelation and broaden the bandwidth of chaotic laser form slave laser under the selected parameter conditions. The bandwidth maximum value of chaotic laser can reach 18. 45 GHz.
A scheme for eliminating the autocorrelation and broadening the bandwidth of chaotic laser from semiconductor lasers( SL) is proposed. In this scheme, a SL with single-channel phase modulation optical feedback is taken as the master laser, and a SL with double-channel filter optical feedback is taken as the slave laser. The laser from the master laser is injected into the slave laser. We numerically investigate the influences of parameters, such as the pumping factor,external light injection coefficient and frequency detuning between master and slave lasers, on the autocorrelation and bandwidth of chaotic laser from slave laser. The results show that the proposed scheme can effectively reduce the autocorrelation and broaden the bandwidth of chaotic laser form slave laser under the selected parameter conditions. The bandwidth maximum value of chaotic laser can reach 18. 45 GHz.
引文
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[27]Lang R,Kobayashi K.External optical feedback effects on semiconductor injection laser properties[J].IEEE Journal of Quantum Electronics,1980,16(3):347-355.
[28]Udaltsov V S,Larger L,Goedgebuer J P,et al.Time delay identification in chaotic cryptosystems ruled by delay-differential equations[J].Journal of Optical Technology,2005,72(5):373-377.
[29]Gao F,Li N Q,Zhang L Y,et al.Study to suppress time delay signature of chaotic carrier utilizing chaotic optical injection[J].Journal of Quantum Optics,2016,22(3):289-297.高飞,李念强,张力月,等.采用混沌光注入实现混沌载波时延特征隐藏的研究[J].量子光学学报,2016,22(3):289-297.
[30]Mikami T,Kanno K,Aoyama K,et al.Estimation of entropy rate in a fast physical random-bit generator using a chaotic semiconductor laser with intrinsic noise[J].Physical Review E:Statistical,Nonlinear,and Soft Matter Physics,2012,85(2):016211.
[31]Sun W Y,Zhang S H,Wu T A,et al.Broadening the bandwidth of chaotic carrier transmitter in semiconductor lasers with chaotic optical injection[J].Laser&Optoelectronics Progress,2017,54(6):061410.孙巍阳,张胜海,吴天安,等.混沌光注入展宽半导体激光器混沌载波发射机带宽[J].激光与光电子学进展,2017,54(6):061410.
[2]Uchida A,Amano K,Inoue M,et al.Fast physical random bit generation with chaotic semiconductor lasers[J].Nature Photonics,2008,2(12):728-732.
[3]Gallager R G.Principles of digital communication[M].Cambridge:Cambridge University Press,2008.
[4]Metropolis N,Ulam S.The monte carlo method[J].Journal of the American Statistical Association,1949,44(247):335-341.
[5]Asmussen S,Glynn P W.Stochastic simulation:Algorithms and analysis[M].New York:Springer Science&Business Media,2007.
[6]Stinson D R.Cryptography:Theory and practice[M].Boca Raton:CRC press,2005.
[7]Lin F Y,Liu J M.Chaotic radar using nonlinear laser dynamics[J].IEEE Journal of Quantum Electronics,2004,40(6):815-820.
[8]Wang Y C,Wang B J,Wang A B.Chaotic correlation optical time domain reflectometer utilizing laser diode[J].IEEE Photonics Technology Letters,2008,20(19):1636-1638.
[9]Vicente R,Dauden J,Colet P,et al.Analysis and characterization of the hyperchaos generated by a semiconductor laser subject to a delayed feedback loop[J].IEEE Journal of Quantum Electronics,2005,41(4):541-548.
[10]Jafari A,Sedghi H,Mabhouti K,et al.Slave-master dynamics of semiconductor laser with short external cavity[J].Optics Communications,2011,284(12):3018-3029.
[11]Wu J G,Xia G Q,Tang X,et al.Time delay signature concealment of optical feedback induced chaos in an external cavity semiconductor laser[J].Optics Express,2010,18(7):6661-6666.
[12]Rontani D,Locquet A,Sciamanna M,et al.Time-delay identification in a chaotic semiconductor laser with optical feedback:A dynamical point of view[J].IEEE Journal of Quantum Electronics,2009,45(7):879-1891.
[13]Zhao Q C,Wang Y C,Wang A B.Eavesdropping in chaotic optical communication using the feedback length of an external-cavity laser as a key[J].Applied Optics,2009,48(18):3515-3520.
[14]Udaltsov V S,Goedgebuer J P,Larger L,et al.Cracking chaos-based encryption systems ruled by nonlinear time delay differential equations[J].Physics Letters A,2003,308(1):54-60.
[15]Zhang J B,Zhang J Z,Yang Y B,et al.Randomness analysis of external cavity semiconductor laser as entropy source[J].Acta Physica Sinica,2010,59(11):7679-7685.张继兵,张建忠,杨毅彪,等.外腔半导体激光器随机数熵源的腔长分析[J].物理学报,2010,59(11):7679-7685.
[16]Wang A B,Yang Y B,Wang B J,et al.Generation of wideband chaos with suppressed time-delay signature by delayed self-interference[J].Optics Express,2013,21(7):8701-8710.
[17]Feng Y,Yang Y B,Wang A B,et al.Generation of 27GHz flat broadband chaotic laser with semiconductor laser loop[J].Acta Physica Sinica,2011,60(6):064206.冯野,杨毅彪,王安帮,等.利用半导体激光器环产生27 GHz的平坦宽带混沌激光[J].物理学报,2011,60(6):064206.
[18]Li N Q,Pan W,Yan L S,et al.Enhanced two-channel optical chaotic communication using isochronous synchronization[J].IEEE Journal of Selected Topics in Quantum Electronics,2013,19(4):0600109.
[19]Rontani D,Locquet A,Sciamanna M,et al.Loss of time-delay signature in the chaotic output of a semiconductor laser with optical feedback[J].Optics Letters,2007,32(20):2960-2962.
[20]Wu J G,Xia G Q,Cao L P,et al.Experimental investigations on the external cavity time signature in chaotic output of an incoherent optical feedback external cavity semiconductor laser[J].Optics Communications,2009,282(15):3153-3156.
[21]Lee M W,Rees P,Shore K A,et al.Dynamical characterisation of laser diode subject to double optical feedback for chaotic optical communications[J].IEE Proceedings-Optoelectronics,2005,152(2):97-102.
[22]Zhang J Z,Wang A B,Zhang M J,et al.Elimination of time-delay signature in an external cavity semiconductor laser by randomly modulating feedback phase[J].Acta Physica Sinica,2011,60(9):094207.张建忠,王安帮,张明江,等.反馈相位随机调制消除混沌半导体激光器的外腔长信息[J].物理学报,2011,60(9):094207.
[23]Xiang S Y,Pan W,Zhang L Y,et al.Phase-modulation dual-path feedback for time delay signature suppression from intensity and phase chaos in semiconductor laser[J].Optics Communications,2014,324:38-46.
[24]Sun W Y,Zhang S H,Wu T A,et al.Time delay signature concealment in chaotic semiconductor lasers with double optical feedback and dual-path injection[J].Laser&Optoelectronics Progress,2016,53(12):121406.孙巍阳,张胜海,吴天安,等.双光反馈双光注入混沌半导体激光器延时特征峰抑制[J].激光与光电子学进展,2016,53(12):121406.
[25]Zhang J Z,Feng C K,Zhang M J,et al.Time-delay signature suppression in chaotic laser source with optical feedback by Brillouin scattering[J].Chinese Journal of Lasers,2017,44(2):0208002.张建忠,冯昌坤,张明江,等.布里渊散射对光反馈混沌源时延特征的抑制[J].中国激光,2017,44(2):0208002.
[26]Lu D,Zhong Z Q,Xia G Q,et al.Chaotic signal generation with low time-delay signature based on a semiconductor laser subject to double filtered optical feedback[J].Acta Photonica Sinica,2016,45(10):1014003.卢东,钟祝强,夏光琼,等.用双滤波反馈半导体激光器产生低延时特征的混沌信号[J].光子学报,2016,45(10):1014003.
[27]Lang R,Kobayashi K.External optical feedback effects on semiconductor injection laser properties[J].IEEE Journal of Quantum Electronics,1980,16(3):347-355.
[28]Udaltsov V S,Larger L,Goedgebuer J P,et al.Time delay identification in chaotic cryptosystems ruled by delay-differential equations[J].Journal of Optical Technology,2005,72(5):373-377.
[29]Gao F,Li N Q,Zhang L Y,et al.Study to suppress time delay signature of chaotic carrier utilizing chaotic optical injection[J].Journal of Quantum Optics,2016,22(3):289-297.高飞,李念强,张力月,等.采用混沌光注入实现混沌载波时延特征隐藏的研究[J].量子光学学报,2016,22(3):289-297.
[30]Mikami T,Kanno K,Aoyama K,et al.Estimation of entropy rate in a fast physical random-bit generator using a chaotic semiconductor laser with intrinsic noise[J].Physical Review E:Statistical,Nonlinear,and Soft Matter Physics,2012,85(2):016211.
[31]Sun W Y,Zhang S H,Wu T A,et al.Broadening the bandwidth of chaotic carrier transmitter in semiconductor lasers with chaotic optical injection[J].Laser&Optoelectronics Progress,2017,54(6):061410.孙巍阳,张胜海,吴天安,等.混沌光注入展宽半导体激光器混沌载波发射机带宽[J].激光与光电子学进展,2017,54(6):061410.