【摘要】：光學(xué)任意波形產(chǎn)生器(OAWG)能夠輸出任意波形的超短光脈沖,是一種多功能超快調(diào)制器。OAWG突破了電子瓶頸對(duì)速度的制約,在激光技術(shù)、高速光通信以及微波光子學(xué)等領(lǐng)域都有著重要的應(yīng)用價(jià)值。因此,本文首先提出了一種基于多波長(zhǎng)半導(dǎo)體光纖環(huán)形腔激光器(SFRL)的光學(xué)任意波形產(chǎn)生器,并對(duì)其進(jìn)行了深入地理論研究和性能分析。隨著光學(xué)任意波形產(chǎn)生技術(shù)的飛速發(fā)展,對(duì)產(chǎn)生的光學(xué)任意波形進(jìn)行準(zhǔn)確地測(cè)量,進(jìn)而提高產(chǎn)生的光學(xué)任意波形和目標(biāo)光學(xué)任意波形的相似度至關(guān)重要,探索精確的光學(xué)任意波形測(cè)量技術(shù)、研制性能優(yōu)良的光學(xué)任意波形測(cè)量裝置迫在眉睫。因此,本文提出了一種基于單模光纖的交叉相位調(diào)制(XPM)型互相關(guān)頻率分辨光學(xué)開(kāi)關(guān)(X-FROG)光學(xué)任意波形測(cè)量方案,實(shí)現(xiàn)了對(duì)光學(xué)任意波形的幅度和相位的準(zhǔn)確測(cè)量,并對(duì)其工作性能進(jìn)行了深入的分析。具體內(nèi)容如下:(1)闡述了光學(xué)任意波形產(chǎn)生及其測(cè)量技術(shù)的研究意義,綜述了國(guó)內(nèi)外光學(xué)任意波形產(chǎn)生及其測(cè)量技術(shù)的研究現(xiàn)狀。(2)提出了一種新的基于多波長(zhǎng)SFRL的光學(xué)任意波形產(chǎn)生方案。利用基于傅里葉變換的譜線逐行整形(line-by-line shaping)原理,考慮半導(dǎo)體光放大器(SOA)的材料增益譜分布、載流子和光場(chǎng)的縱向分布以及放大自發(fā)輻射(ASE)譜分布,結(jié)合單模光纖的模式耦合理論以及傳輸矩陣法,建立了完善的基于多波長(zhǎng)SFRL的OAWG的寬帶理論模型。(3)對(duì)基于多波長(zhǎng)SFRL的光學(xué)任意波形產(chǎn)生器進(jìn)行了數(shù)值模擬和性能研究。實(shí)現(xiàn)了周期性高斯脈沖、周期性三角脈沖以及周期性光學(xué)任意波形的產(chǎn)生,并研究了幅度控制、相位控制、譜線間隔、譜線數(shù)量和SOA注入電流對(duì)產(chǎn)生的光學(xué)任意波形相似度的影響。(4)提出了一種新的基于單模光纖的XPM型X-FROG光學(xué)任意波形測(cè)量方案。利用單模光纖的應(yīng)力雙折射和交叉相位調(diào)制效應(yīng),采用基于矩陣的主元素廣義投影(PCGP)算法,建立了基于單模光纖的XPM型X-FROG光學(xué)任意波形測(cè)量的理論模型。(5)對(duì)基于單模光纖的XPM型X-FROG光學(xué)任意波形測(cè)量方案進(jìn)行了仿真。實(shí)現(xiàn)了光學(xué)任意波形的準(zhǔn)確測(cè)量,并研究了光纖長(zhǎng)度、門(mén)脈沖形狀以及門(mén)脈沖和待測(cè)光學(xué)任意波形相對(duì)強(qiáng)度對(duì)測(cè)量準(zhǔn)確性的影響。
[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.
【學(xué)位授予單位】：南京郵電大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：TN761

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相關(guān)碩士學(xué)位論文 前1條

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本文編號(hào)：2488379