基于多波长SFRL的光学任意波形产生及其测量的研究
发布时间：2019-05-30 01:05
【摘要】：光学任意波形产生器(OAWG)能够输出任意波形的超短光脉冲,是一种多功能超快调制器。OAWG突破了电子瓶颈对速度的制约,在激光技术、高速光通信以及微波光子学等领域都有着重要的应用价值。因此,本文首先提出了一种基于多波长半导体光纤环形腔激光器(SFRL)的光学任意波形产生器,并对其进行了深入地理论研究和性能分析。随着光学任意波形产生技术的飞速发展,对产生的光学任意波形进行准确地测量,进而提高产生的光学任意波形和目标光学任意波形的相似度至关重要,探索精确的光学任意波形测量技术、研制性能优良的光学任意波形测量装置迫在眉睫。因此,本文提出了一种基于单模光纤的交叉相位调制(XPM)型互相关频率分辨光学开关(X-FROG)光学任意波形测量方案,实现了对光学任意波形的幅度和相位的准确测量,并对其工作性能进行了深入的分析。具体内容如下:(1)阐述了光学任意波形产生及其测量技术的研究意义,综述了国内外光学任意波形产生及其测量技术的研究现状。(2)提出了一种新的基于多波长SFRL的光学任意波形产生方案。利用基于傅里叶变换的谱线逐行整形(line-by-line shaping)原理,考虑半导体光放大器(SOA)的材料增益谱分布、载流子和光场的纵向分布以及放大自发辐射(ASE)谱分布,结合单模光纤的模式耦合理论以及传输矩阵法,建立了完善的基于多波长SFRL的OAWG的宽带理论模型。(3)对基于多波长SFRL的光学任意波形产生器进行了数值模拟和性能研究。实现了周期性高斯脉冲、周期性三角脉冲以及周期性光学任意波形的产生,并研究了幅度控制、相位控制、谱线间隔、谱线数量和SOA注入电流对产生的光学任意波形相似度的影响。(4)提出了一种新的基于单模光纤的XPM型X-FROG光学任意波形测量方案。利用单模光纤的应力双折射和交叉相位调制效应,采用基于矩阵的主元素广义投影(PCGP)算法,建立了基于单模光纤的XPM型X-FROG光学任意波形测量的理论模型。(5)对基于单模光纤的XPM型X-FROG光学任意波形测量方案进行了仿真。实现了光学任意波形的准确测量,并研究了光纤长度、门脉冲形状以及门脉冲和待测光学任意波形相对强度对测量准确性的影响。
[Abstract]:Optical arbitrary waveform generator (OAWG) can output ultra-short optical pulse of arbitrary waveform, which is a multifunctional ultra-fast modulator. OAWG breaks through the restriction of electronic bottleneck on speed, in laser technology, High-speed optical communication and microwave photonics have important application value. Therefore, in this paper, an optical arbitrary waveform generator based on multi-wavelength semiconductor fiber ring cavity laser (SFRL) is proposed, and its theoretical research and performance analysis are carried out. With the rapid development of optical arbitrary waveform generation technology, it is very important to measure the generated optical arbitrary waveform accurately, and then to improve the similarity between the generated optical arbitrary waveform and the target optical arbitrary waveform. It is urgent to explore accurate optical arbitrary waveform measurement technology and develop optical arbitrary waveform measurement device with excellent performance. Therefore, a cross-phase modulation (XPM) cross-correlation frequency-resolved optical switch (X-FROG) optical arbitrary waveform measurement scheme based on single-mode fiber is proposed in this paper, which realizes the accurate measurement of the amplitude and phase of optical arbitrary waveform. Its working performance is analyzed deeply. The specific contents are as follows: (1) the research significance of optical arbitrary waveform generation and its measurement technology is described. The research status of optical arbitrary waveform generation and its measurement technology at home and abroad is reviewed. (2) A new optical arbitrary waveform generation scheme based on multi-wavelength SFRL is proposed. Based on the principle of spectral line progressive shaping (line-by-line shaping) based on Fourier transform, the material gain spectrum distribution, carrier and light field longitudinal distribution and amplified spontaneous emission (ASE) spectrum distribution of semiconductor optical amplifier (SOA) are considered. Based on the mode coupling theory of single-mode fiber and the transmission matrix method, a perfect broadband theoretical model of OAWG based on multi-wavelength SFRL is established. (3) the numerical simulation and performance of optical arbitrary waveform generator based on multi-wavelength SFRL are studied. The generation of periodic Gao Si pulse, periodic triangular pulse and periodic optical arbitrary waveform is realized, and amplitude control, phase control and spectral line interval are studied. The influence of the number of spectral lines and SOA injection current on the similarity of optical arbitrary waveforms. (4) A new optical arbitrary waveform measurement scheme of XPM X-FROG based on single-mode fiber is proposed. Based on the stress birefringence and cross phase modulation effect of single mode fiber, the matrix based principal element generalized projection (PCGP) algorithm is adopted. The theoretical model of X-FROG optical arbitrary waveform measurement based on single mode fiber is established. (5) the measurement scheme of XPM optical arbitrary waveform based on single mode fiber is simulated. The accurate measurement of optical arbitrary waveform is realized, and the effects of optical fiber length, gate pulse shape and the relative intensity of gate pulse and optical arbitrary waveform on the accuracy of measurement are studied.
【学位授予单位】：南京邮电大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TN761
本文编号：2488379
[Abstract]:Optical arbitrary waveform generator (OAWG) can output ultra-short optical pulse of arbitrary waveform, which is a multifunctional ultra-fast modulator. OAWG breaks through the restriction of electronic bottleneck on speed, in laser technology, High-speed optical communication and microwave photonics have important application value. Therefore, in this paper, an optical arbitrary waveform generator based on multi-wavelength semiconductor fiber ring cavity laser (SFRL) is proposed, and its theoretical research and performance analysis are carried out. With the rapid development of optical arbitrary waveform generation technology, it is very important to measure the generated optical arbitrary waveform accurately, and then to improve the similarity between the generated optical arbitrary waveform and the target optical arbitrary waveform. It is urgent to explore accurate optical arbitrary waveform measurement technology and develop optical arbitrary waveform measurement device with excellent performance. Therefore, a cross-phase modulation (XPM) cross-correlation frequency-resolved optical switch (X-FROG) optical arbitrary waveform measurement scheme based on single-mode fiber is proposed in this paper, which realizes the accurate measurement of the amplitude and phase of optical arbitrary waveform. Its working performance is analyzed deeply. The specific contents are as follows: (1) the research significance of optical arbitrary waveform generation and its measurement technology is described. The research status of optical arbitrary waveform generation and its measurement technology at home and abroad is reviewed. (2) A new optical arbitrary waveform generation scheme based on multi-wavelength SFRL is proposed. Based on the principle of spectral line progressive shaping (line-by-line shaping) based on Fourier transform, the material gain spectrum distribution, carrier and light field longitudinal distribution and amplified spontaneous emission (ASE) spectrum distribution of semiconductor optical amplifier (SOA) are considered. Based on the mode coupling theory of single-mode fiber and the transmission matrix method, a perfect broadband theoretical model of OAWG based on multi-wavelength SFRL is established. (3) the numerical simulation and performance of optical arbitrary waveform generator based on multi-wavelength SFRL are studied. The generation of periodic Gao Si pulse, periodic triangular pulse and periodic optical arbitrary waveform is realized, and amplitude control, phase control and spectral line interval are studied. The influence of the number of spectral lines and SOA injection current on the similarity of optical arbitrary waveforms. (4) A new optical arbitrary waveform measurement scheme of XPM X-FROG based on single-mode fiber is proposed. Based on the stress birefringence and cross phase modulation effect of single mode fiber, the matrix based principal element generalized projection (PCGP) algorithm is adopted. The theoretical model of X-FROG optical arbitrary waveform measurement based on single mode fiber is established. (5) the measurement scheme of XPM optical arbitrary waveform based on single mode fiber is simulated. The accurate measurement of optical arbitrary waveform is realized, and the effects of optical fiber length, gate pulse shape and the relative intensity of gate pulse and optical arbitrary waveform on the accuracy of measurement are studied.
【学位授予单位】：南京邮电大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TN761
【参考文献】
相关硕士学位论文 前1条
1 孙辉;全光任意波形产生器的设计及梳状相干光源的研究[D];天津理工大学;2012年
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