双混沌光注入VCSEL获取宽带宽偏振混沌信号
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摘要
基于自旋反转模型(SFM),理论研究了双混沌光注入时偏振混沌信号的带宽特性。研究结果表明,与单混沌光注入方式相比,双混沌光注入方式可减弱注入锁定效应,垂直腔面发射激光器(VCSEL)可在注入强度和频率失谐参数空间的更大范围内获得偏振宽带宽混沌信号。对于给定的注入强度,当双混沌光的两个频率失谐绝对值同为较大值时,系统更易产生宽带宽的偏振混沌;对于给定的频率失谐,系统可在两个注入强度参数空间的特定区域内实现宽带宽混沌输出,且正的频率失谐条件更有利于该区域的扩展。
Based on the spin flip model(SFM), the bandwidth characteristics of the polarized chaotic signals generated subject to dual chaotic optical injection are studied theoretically. The research results show that, in contrast with the case of single chaotic optical injection, the dual chaotic optical injection weakens the injection locking effect, and the vertical-cavity surface-emitting laser(VCSEL) can achieve wideband polarized chaotic signals in a wider range of the parameter space of injection intensity and frequency detuning. Under the given injection intensity, when two frequency detunings associated with the dual chaotic optical injection possess large absolute values, the system is more inclined to produce wide-bandwidth polarized chaos. Under the given frequency detuning, the specific region in the parameter space of two injection intensities required for generating wideband chaos can be determined and expanded if a positive frequency detuning is chosen.
Based on the spin flip model(SFM), the bandwidth characteristics of the polarized chaotic signals generated subject to dual chaotic optical injection are studied theoretically. The research results show that, in contrast with the case of single chaotic optical injection, the dual chaotic optical injection weakens the injection locking effect, and the vertical-cavity surface-emitting laser(VCSEL) can achieve wideband polarized chaotic signals in a wider range of the parameter space of injection intensity and frequency detuning. Under the given injection intensity, when two frequency detunings associated with the dual chaotic optical injection possess large absolute values, the system is more inclined to produce wide-bandwidth polarized chaos. Under the given frequency detuning, the specific region in the parameter space of two injection intensities required for generating wideband chaos can be determined and expanded if a positive frequency detuning is chosen.
引文
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[24] Liao J F, Sun J Q. Polarization dynamics and chaotic synchronization in unidirectionally coupled VCSELs subjected to optoelectronic feedback[J]. Optics Communications, 2013, 295(10): 188-196.
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[27] Martin-Regalado J, Prati F, San Miguel M, et al. Polarization properties of vertical-cavity surface-emitting lasers[J]. IEEE Journal of Quantum Electronics, 1997, 33(5): 765-783.
[28] Lin F Y, Chao Y K, Wu T C. Effective bandwidths of broadband chaotic signals[J]. IEEE Journal of Quantum Electronics, 2012, 48(8): 1010-1014.
[29] Zhong Z Q, Wu Z M, Wu J G, et al. Time-delay signature suppression of polarization-resolved chaos outputs from two mutually coupled VCSELs[J]. IEEE Photonics Journal, 2013, 5(2): 1500409.
[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] Lin F Y, Liu J M. Chaotic lidar[J]. IEEE Journal of Selected Topics in Quantum Electronics, 2004, 10(5): 991-997.
[4] Yang H B, Wu Z M, Tang X, et al. Influence of feedback strength on the characteristics of the random number sequence extracted from an external-cavity feedback semiconductor laser[J]. Acta Physica Sinica, 2015, 64(8): 084204. 杨海波, 吴正茂, 唐曦, 等. 反馈强度对外腔反馈半导体激光器混沌熵源生成的随机数序列性能的影响[J]. 物理学报, 2015, 64(8): 084204.
[5] Yang H H, Yang L Z, Zhang J, et al. Chaos complexity of erbium-doped chaotic fiber ring laser[J]. Acta Optica Sinica, 2015, 35(7): 0714002. 杨欢欢, 杨玲珍, 张俊, 等. 掺铒光纤环形激光器混沌复杂度分析[J]. 光学学报, 2015, 35(7): 0714002.
[6] Li Q L, Lu S S, Bao Q, et al. Bidirectional signal transmission based on two coupled chaotic semiconductor lasers[J]. Chinese Journal of Lasers, 2018, 45(5): 0506001. 李齐良, 卢珊珊, 包琪, 等. 基于耦合混沌半导体激光器之间双向信号传输的研究[J]. 中国激光, 2018, 45(5): 0506001.
[7] Simpson T B, Liu J M, Huang K F, et al. Nonlinear dynamics induced by external optical injection in semiconductor lasers[J]. Quantum and Semiclassical Optics: Journal of the European Optical Society Part B, 1997, 9(5): 765-784.
[8] Wang A B, Wang Y C, Wang J F. Route to broadband chaos in a chaotic laser diode subject to optical injection[J].Optics Letters, 2009, 34(8): 1144-1146.
[9] Wang A B, Wang Y C, He H C. Enhancing the bandwidth of the optical chaotic signal generated by a semiconductor laser with optical feedback[J]. IEEE Photonics Technology Letters, 2008, 20(19): 1633-1635.
[10] Lenstra D. Relaxation oscillation dynamics in semiconductor diode lasers with optical feedback[J]. IEEE Photonics Technology Letters, 2013, 25(6): 591-593.
[11] Uchida A, Heil T, Liu Y, et al. High-frequency broad-band signal generation using a semiconductor laser with a chaotic optical injection[J]. IEEE Journal of Quantum Electronics, 2003, 39(11): 1462-1467.
[12] Yan S L. Enhancing the relaxation oscillation frequency of a chaotic semiconductor laser transmitter using optical dual-feedback light[J]. Optics Communications, 2010, 283(17): 3305-3309.
[13] Zhang Y Y, Zhang J Z, Zhang M J, et al. 2.87-Gb/s random bit generation based on bandwidth-enhanced chaotic laser[J]. Chinese Optics Letters, 2011, 9(3): 031404.
[14] Zhang M J, Liu T G, Li P, et al. Generation of broadband chaotic laser using dual-wavelength optically injected Fabry-Perot laser diode with optical feedback[J]. IEEE Photonics Technology Letters, 2011, 23(24): 1872-1874.
[15] Li N Q, Pan W, Xiang S Y, et al. Photonic generation of wideband time-delay-signature-eliminated chaotic signals utilizing an optically injected semiconductor laser[J]. IEEE Journal of Quantum Electronics, 2012, 48(10): 1339-1345.
[16] Xiang S Y, Pan W, Luo B, et al. Wideband unpredictability-enhanced chaotic semiconductor lasers with dual-chaotic optical injections[J]. IEEE Journal of Quantum Electronics, 2012, 48(8): 1069-1076.
[17] Li Y J, Zong N, Peng Q J. Characteristics and progress of vertical-cavity surface-emitting semiconductor lasers[J]. Laser & Optoelectronics Progress, 2018, 55(5): 050006. 李玉娇,宗楠, 彭钦军. 垂直腔面发射半导体激光器的特性及其研究现状[J]. 激光与光电子学进展, 2018, 55(5): 050006.
[18] Lü Z C, Wang Q, Yao S, et al. 4×15 Gbit/s 850 nm vertical cavity surface emitting laser array[J]. Acta Optica Sinica, 2018, 38(5): 0514001. 吕朝晨, 王青, 尧舜, 等. 4×15 Gbit/s 850 nm垂直腔面发射激光器列阵[J]. 光学学报, 2018, 38(5):0514001.
[19] Koyama F. Recent advances of VCSEL photonics[J]. Journal of Lightwave Technology, 2006, 24(12): 4502-4513.
[20] Li X J, Wu Z M, Deng T, et al. Investigation on the bistability performances of vertical-cavity surface-emitting lasers with time-varying orthogonal optical injection subject to weak optical feedback[J]. Acta Optica Sinica, 2012, 32(12): 1214001. 李小坚, 吴正茂, 邓涛, 等. 弱光反馈下正交时变光注入VCSEL的双稳特性研究[J]. 光学学报, 2012, 32(12): 1214001.
[21] Chen J J, Xia G Q, Wu Z M. Power-induced polarization switching and bistability characteristics in 1550-nm VCSELs subjected to orthogonal optical injection[J]. Chinese Physics B, 2015, 24(2): 024210.
[22] Chen J J, Duan Y N, Zhong Z Q. Complex-enhanced chaotic signals with time-delay signature suppression based on vertical-cavity surface-emitting lasers subject to chaotic optical injection[J]. Optical Review, 2018, 25(3): 356-364.
[23] Xu P, Xia G Q, Wu Z M, et al. Circular polarization switching and polarization bistability of optically pumped 1300 nm spin vertical-cavity surface-emitting lasers[J]. Chinese Journal of Lasers, 2018, 45(4): 0401002. 徐攀, 夏光琼, 吴正茂, 等. 光抽运下1300 nm自旋垂直腔面发射激光器输出激光的圆偏振转换及偏振双稳特性[J]. 中国激光, 2018, 45(4): 0401002.
[24] Liao J F, Sun J Q. Polarization dynamics and chaotic synchronization in unidirectionally coupled VCSELs subjected to optoelectronic feedback[J]. Optics Communications, 2013, 295(10): 188-196.
[25] Chen J J, Wu Z M, Tang X, et al. Generation of polarization-resolved wideband unpredictability-enhanced chaotic signals based on vertical-cavity surface-emitting lasers subject to chaotic optical injection[J]. Optics Express, 2015, 23(6): 7173-7183.
[26] Quirce A, Valle A, Thienpont H, et al. Enhancement of chaos bandwidth in VCSELs induced by simultaneous orthogonal optical injection and optical feedback[J]. IEEE Journal of Quantum Electronics, 2016, 52(10): 2400609.
[27] Martin-Regalado J, Prati F, San Miguel M, et al. Polarization properties of vertical-cavity surface-emitting lasers[J]. IEEE Journal of Quantum Electronics, 1997, 33(5): 765-783.
[28] Lin F Y, Chao Y K, Wu T C. Effective bandwidths of broadband chaotic signals[J]. IEEE Journal of Quantum Electronics, 2012, 48(8): 1010-1014.
[29] Zhong Z Q, Wu Z M, Wu J G, et al. Time-delay signature suppression of polarization-resolved chaos outputs from two mutually coupled VCSELs[J]. IEEE Photonics Journal, 2013, 5(2): 1500409.