本文選題：微波光子學(xué) + IIR微波光子濾波器��； 參考：《暨南大學(xué)》2015年碩士論文

【摘要】：微波光子學(xué)是光纖技術(shù)與微波技術(shù)相互滲透并緊密結(jié)合而形成的一門新興的交叉學(xué)科,基于光子學(xué)方法的微波信號處理技術(shù)則是微波光子學(xué)研究的重要內(nèi)容。微波光子濾波器是微波光子信號處理技術(shù)中最具代表性的成果之一,其借助光子器件或者光學(xué)子系統(tǒng)來完成傳統(tǒng)微波濾波器同樣的處理功能,具有低損耗、高帶寬、抗電磁干擾、靈活的可調(diào)諧性和可重構(gòu)性等優(yōu)點,近年來逐漸成為微波光子信號處理領(lǐng)域的研究前沿,具有很高的技術(shù)先進性和應(yīng)用潛力。本文主要圍繞新型微波光子濾波器技術(shù)開展研究,主要包括以下幾個方面:(1)探討了實現(xiàn)微波光子濾波器的各類方法,系統(tǒng)地介紹了微波光子濾波器的基本原理及實現(xiàn)技術(shù),為本論文的研究奠定理論基礎(chǔ)。(2)提出并實現(xiàn)一種利用多縱模光纖激光器作為光源的IIR微波光子濾波器結(jié)構(gòu),充分利用多縱模光纖激光器相干度具有周期性和可調(diào)諧性的特點,有效的解決了微波光子濾波器中由光源相干長度長引起的自由頻譜范圍(Free spectral Range,FSR)的局限性,最終實現(xiàn)了FSR達到0.59 GHz的穩(wěn)定的IIR微波光子濾波器,其響應(yīng)的波動控制在2%之內(nèi)。(3)提出并實現(xiàn)一種基于偏振調(diào)制器與偏振干涉儀的單光源非相干的負系數(shù)陷波濾波器,該濾波器具有FSR連續(xù)可調(diào)諧、信噪比高、陷波深度大等一系列優(yōu)點。
[Abstract]:Microwave photonics is a new interdisciplinary subject formed by the mutual penetration and close combination of optical fiber technology and microwave technology. Microwave signal processing technology based on photonics is an important content of microwave photonics research.Microwave photonic filter is one of the most representative achievements in microwave photon signal processing technology. It uses photonic devices or optical subsystems to complete the same processing function of traditional microwave filter, which has low loss and high bandwidth.In recent years, the advantages of anti-electromagnetic interference, flexible tunability and reconfiguration have gradually become the research frontier in the field of microwave photonic signal processing, and have high technical advancement and application potential.This paper mainly focuses on the research of new microwave photonic filter technology, including the following aspects: 1) discuss various methods to realize microwave photonic filter, and introduce the basic principle and realization technology of microwave photonic filter systematically.A IIR microwave photonic filter structure using multi-longitudinal-mode fiber laser as the light source is proposed and realized, which makes full use of the periodicity and tunability of the coherence of the multi-longitudinal-mode fiber laser.It effectively solves the limitation of free spectral range (Free spectral range) caused by long coherent length of light source in microwave photonic filter, and finally realizes a stable IIR microwave photonic filter with FSR up to 0.59 GHz.A non-coherent negative coefficient notch filter based on polarization modulator and polarization interferometer is proposed and implemented. The filter has continuous tunable FSR and high signal-to-noise ratio (SNR).A series of advantages such as high notch depth and so on.
【學(xué)位授予單位】：暨南大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：TN713

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