本文選題：集成光波導(dǎo) + 電場(chǎng)傳感器��； 參考：《電子科技大學(xué)》2016年博士論文

【摘要】：集成光波導(dǎo)電場(chǎng)傳感器具有體積小、帶寬寬、抗電磁干擾能力強(qiáng)、對(duì)被測(cè)電場(chǎng)擾動(dòng)小等特點(diǎn),因此非常有潛力應(yīng)用于瞬態(tài)強(qiáng)電磁脈沖的時(shí)域測(cè)量。論文主要針對(duì)一種以鈮酸鋰(LiNbO3, LN)電光調(diào)制為基礎(chǔ)的馬赫增德?tīng)柛缮鎯x(Mach Zehnder Interferometer, MZI)型集成光波導(dǎo)脈沖電場(chǎng)傳感器及其系統(tǒng)展開(kāi)研究。主要內(nèi)容包括：1.集成光波導(dǎo)脈沖電場(chǎng)傳感器基本原理及其系統(tǒng)組成分析分析給出了LN集成MZI型光波導(dǎo)電場(chǎng)傳感器的基本工作原理及其系統(tǒng)的一般組成。分別從時(shí)域和頻域分析了π/2的固有相位差(線性工作點(diǎn))對(duì)MZI型集成光波導(dǎo)電場(chǎng)傳感器最大不失真地探測(cè)空間電場(chǎng)的重要性。推導(dǎo)給出了集成光波導(dǎo)電場(chǎng)傳感系統(tǒng)靈敏度的一般表達(dá)式,并得出系統(tǒng)最小可測(cè)電場(chǎng)與傳感器的半波電場(chǎng)成正比,同時(shí)還與系統(tǒng)噪聲帶寬的平方根成正比。最后分析給出了脈沖電場(chǎng)傳感系統(tǒng)線性最大可測(cè)電場(chǎng)和傳感器半波電場(chǎng)的關(guān)系,并對(duì)比分析了電場(chǎng)傳感器的頻域以及時(shí)域測(cè)試方法。2.基于波長(zhǎng)調(diào)諧的集成光波導(dǎo)電場(chǎng)傳感器工作點(diǎn)控制研究工作點(diǎn)的穩(wěn)定對(duì)傳感器的各項(xiàng)性能指標(biāo)包括靈敏度、帶寬、時(shí)域波形探測(cè)等都至關(guān)重要。分析得出,LN集成MZI型光波導(dǎo)電場(chǎng)傳感器工作點(diǎn)的漂移是一個(gè)普遍存在的、復(fù)雜的物理過(guò)程,想要從改進(jìn)器件制作工藝或者結(jié)構(gòu)等方面完全解決工作點(diǎn)的漂移問(wèn)題幾乎是不可能的。提出并通過(guò)軟硬件開(kāi)發(fā)出一套基于波長(zhǎng)調(diào)諧的新型集成光波導(dǎo)電場(chǎng)傳感器工作點(diǎn)控制系統(tǒng)。由于系統(tǒng)采用一種純光的控制技術(shù),因此不會(huì)對(duì)被測(cè)電場(chǎng)產(chǎn)生干擾。最后由實(shí)驗(yàn)測(cè)試得出,系統(tǒng)控制精度、控制時(shí)間等性能指標(biāo)滿足傳感器探測(cè)時(shí)域脈沖的要求。3.集成光波導(dǎo)三維納秒電磁脈沖傳感系統(tǒng)研究納秒電磁脈沖如核電磁脈沖的時(shí)域測(cè)量技術(shù)已成為電磁攻防領(lǐng)域急需解決的關(guān)鍵性科學(xué)問(wèn)題之一。論文使用CST Microwave Studio對(duì)電場(chǎng)傳感器天線及其電極進(jìn)行數(shù)值仿真,最終研制出一種高靈敏度的對(duì)數(shù)周期天線集成光波導(dǎo)三維(Three dimensional,3D)納秒電磁脈沖傳感系統(tǒng),和另一種低靈敏度的領(lǐng)結(jié)天線集成光波導(dǎo)3D納秒電磁脈沖傳感系統(tǒng)。時(shí)域測(cè)試表明,研制的3D納秒電磁脈沖傳感系統(tǒng)探測(cè)到的脈沖時(shí)域波形特性參數(shù)相對(duì)于原始波形誤差在2.5%以?xún)?nèi),并且3D電場(chǎng)傳感系統(tǒng)線性可測(cè)脈沖電場(chǎng)最小低于104 V/m,最大超過(guò)56 kV/m。頻響測(cè)試表明,3D電場(chǎng)傳感系統(tǒng)帶寬范圍為100 kHz到1 GHz。4.集成光波導(dǎo)三維微秒強(qiáng)電磁脈沖傳感系統(tǒng)研究對(duì)高電壓工程領(lǐng)域普遍存在的場(chǎng)強(qiáng)高達(dá)幾百甚至上千kV/m的微秒電磁脈沖進(jìn)行時(shí)域測(cè)量,對(duì)于保證電網(wǎng)安全可靠地運(yùn)行具有重要意義。以行波天線理論為基礎(chǔ),設(shè)計(jì)了一種天線阻抗?jié)u變的錐形天線集成光波導(dǎo)強(qiáng)電場(chǎng)傳感器,并通過(guò)制作三只天線和非對(duì)稱(chēng)MZI直波導(dǎo)臂夾角為54.7。的錐形天線集成光波導(dǎo)強(qiáng)電場(chǎng)傳感器,然后將它們安裝在一個(gè)正三棱柱的三個(gè)側(cè)面上,最終研制出一種體積更小的新型集成光波導(dǎo)三維強(qiáng)電場(chǎng)傳感器。使用標(biāo)準(zhǔn)雷電電磁脈沖對(duì)電場(chǎng)傳感系統(tǒng)進(jìn)行時(shí)域測(cè)試得出,系統(tǒng)線性最大可測(cè)脈沖電場(chǎng)可達(dá)1200 kV/m。最后由理論分析得出,傳感系統(tǒng)探測(cè)到的脈沖時(shí)域波形中夾雜的振蕩噪聲主要來(lái)自LN晶體逆壓電效應(yīng)引起壓電諧振,并對(duì)幾種可能的降噪方法進(jìn)行分析討論。5.集成光波導(dǎo)反射式脈沖電場(chǎng)傳感系統(tǒng)研究為了進(jìn)一步減小集成光波導(dǎo)電場(chǎng)傳感探頭的體積,使其能夠用于測(cè)量一些狹窄空間中的電場(chǎng),通過(guò)理論分析與仿真計(jì)算,研制出一種結(jié)構(gòu)更緊湊的新型反射式錐形偶極子天線陣列集成光波導(dǎo)電場(chǎng)傳感器。時(shí)域測(cè)試表明,研制的10組錐形偶極子天線陣列反射式光波導(dǎo)電場(chǎng)傳感系統(tǒng)線性可測(cè)脈沖電場(chǎng)范圍為640 V/m到29.4 kV/m；研制的4組錐形偶極子天線陣列反射式光波導(dǎo)電場(chǎng)傳感系統(tǒng)線性可測(cè)脈沖電場(chǎng)范圍為1.3 kV/m到58.7 kV/m。頻響測(cè)試表明,研制的反射式錐形偶極子天線陣列光波導(dǎo)電場(chǎng)傳感系統(tǒng)帶寬范圍為100 kHz到12 GHz。
[Abstract]:The integrated optical waveguide electric field sensor has the characteristics of small size, wide band, strong ability to resist electromagnetic interference and small disturbance to the measured electric field. Therefore, it has great potential to be applied to the time domain measurement of transient strong electromagnetic pulse. The paper mainly focuses on a Machka Del interferometer based on LiNbO3 (LN) electro-optical modulation (Mach Zehnder Interfe). Rometer, MZI) integrated light wave guided pulsed electric field sensor and its system development. The main contents include: 1. the basic principle and system composition of the integrated optical wave conduction pulse electric field sensor are analyzed and analyzed. The basic working principle and the general composition of the LN integrated MZI type optical waveguide electric field sensor are given. The importance of the intrinsic phase difference (linear working point) of PI /2 to the detection of the spatial electric field in the MZI integrated optical waveguide electric field sensor is analyzed. The general expression of the sensitivity of the integrated optical waveguide electric field sensing system is derived, and the minimum measurable electric field of the system is proportional to the half wave electric field of the sensor. The square root of the noise bandwidth is proportional to the square root. Finally, the relationship between the linear maximum measurable electric field of the pulsed electric field sensing system and the half wave electric field of the sensor is given, and the stability of the frequency domain and time domain test method of the electric field sensor is compared and analyzed. The stability of the work point of the work point control of an integrated optical waveguide electric field sensor based on the wavelength tuning.2. is compared and analyzed. Every performance index of the sensor, including sensitivity, bandwidth and time domain waveform detection, is very important. It is concluded that the drift of the working point of the LN integrated MZI type optical waveguide electric field sensor is a universal and complex physical process, and it is necessary to solve the drift problem of the work point completely from the aspects of improving the fabrication process or the structure of the device. It is almost impossible to develop a new type of integrated optical waveguide electric field sensor control system based on wavelength tuning. Because the system uses a pure light control technology, it will not interfere with the measured electric field. Finally, the performance of the system control precision and control time is obtained by the experimental test. .3. integrated optical waveguide three-dimensional nanosecond electromagnetic pulse sensing system to meet the requirements of sensor detection in time domain pulse. The time domain measurement technology of nanosecond electromagnetic pulse, such as nuclear electromagnetic pulse, has become one of the key scientific problems to be solved in the field of electromagnetic attack and defense. The paper uses CST Microwave Studio for the electric field sensor antenna and its electricity A highly sensitive logarithmic periodic antenna integrated optical waveguide three-dimensional (Three dimensional, 3D) nanosecond electromagnetic pulse sensing system and another low sensitive tie antenna integrated optical waveguide 3D nanosecond electromagnetic pulse sensing system are finally developed. The time domain test shows that the developed 3D nanosecond electromagnetic pulse sensing system is developed. The characteristic parameters of the detected pulse time waveform are less than 2.5% of the original waveform error, and the linear measurable pulse electric field of the 3D electric field sensing system is less than 104 V/m, and the maximum over 56 kV/m. frequency response test shows that the bandwidth range of the 3D electric field sensing system is from 100 kHz to 1 GHz.4. integrated optical waveguide three dimensional strong electromagnetic pulse sensing system In order to ensure the safe and reliable operation of the power grid, it is of great significance to study the time domain measurement for the time domain of the microsecond electromagnetic pulse which is up to hundreds or even thousands of kV/m in the field of high voltage engineering. Based on the theory of traveling wave antenna, a kind of integrated optical waveguide electric field sensor with tapered antenna with gradual antenna impedance is designed. A conical antenna with three antennas and an asymmetrical MZI straight waveguide arm with an angle of 54.7. is integrated to integrate light wave conduction field sensors. Then they are installed on three sides of a positive three prism, and a new type of new integrated optical waveguide sensor with smaller volume is developed, and the electric field sensor system is used by standard lightning electromagnetic pulse. In time domain test, the linear maximum measurable pulse electric field of the system can reach 1200 kV/m.. Finally, the theoretical analysis shows that the oscillating noise in the time-domain waveform detected by the sensing system mainly comes from the inverse piezoelectric effect of the LN crystal, and analyzes several possible noise reduction methods to discuss the.5. integrated optical waveguide. In order to further reduce the volume of the electric field sensor probe in the integrated optical waveguide, the reflective pulsed electric field sensor system can be used to measure the electric field in some narrow space. Through theoretical analysis and simulation calculation, a new type of reflective cone dipole antenna array integrated optical waveguide electric field sensor is developed. The time domain test shows that the linear measurable electric field range of the 10 conical dipole antenna array reflecting optical waveguide electric field sensing system is from 640 V/m to 29.4 kV/m, and the linear measurable pulse electric field range of the 4 conical dipole antenna array reflecting optical waveguide electric field sensing system is from 1.3 kV/m to 58.7 kV/m. frequency response tests. The reflective tapered dipole antenna array optical waveguide electric field sensing system has a bandwidth ranging from 100 kHz to 12 GHz..

【學(xué)位授予單位】：電子科技大學(xué)
【學(xué)位級(jí)別】：博士
【學(xué)位授予年份】：2016
【分類(lèi)號(hào)】：TN252;TP212
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本文編號(hào)：1839192