本文關鍵詞：準分子激光光纖光柵制備技術研究　出處：《中國科學技術大學》2017年碩士論文　論文類型：學位論文

  更多相關文章： 準分子激光器 相位掩模法 光纖布拉格光柵 制備 光子晶體光纖 聚合物光纖

【摘要】：作為一種重要的光纖無源器件,光纖布拉格光柵在光纖通信和光纖傳感等領域具有重要價值。不同的應用場合對光纖布拉格光柵有不同的要求,且制備過程中的諸多因素會影響光纖光柵的光學特性,因而,如何準確地制備符合特定應用場合的光纖光柵至關重要。此外,光子晶體光纖和聚合物光纖等新型光纖的問世和發(fā)展,為光纖光柵技術的發(fā)展提供了新平臺。光子晶體光纖光柵不僅具有新的光譜特性和應用價值,而且光子晶體光纖光柵的制備對光子晶體光纖光譜特性的分析具有重要作用。聚合物光纖光柵不僅具有柔軟、易彎、質(zhì)輕等優(yōu)點,而且因聚合物材料的低楊氏模量等特性而具有靈敏度高、響應范圍寬和生物兼容性等優(yōu)良特性。本研究課題搭建了一套采用248 nm KrF準分子激光器和相位掩模板制備光纖布拉格光柵的光學系統(tǒng),對光纖光柵制備過程中影響其光學性能的因素進行了研究,探索了制備光子晶體光纖布拉格光柵的工藝,并對其切割方法、耦合方式和光譜特性進行了研究,最后對聚合物光纖的切割和聚合物光纖光柵的制備進行了探索,主要內(nèi)容包括以下幾點:1.搭建了一套采用KrF準分子激光器和相位掩模板制備光纖布拉格光柵的光學系統(tǒng),采用寬帶光源和光譜分析儀觀察并記錄了光纖布拉格光柵的反射譜、透射譜以及動態(tài)生長過程。2.對制備過程中影響光纖光柵光學特性的因素進行了分析,特別是準分子激光器輸出參數(shù)對光纖布拉格光柵光學特性的影響,包括單脈沖能量、脈沖重復頻率、光束均勻性和能量穩(wěn)定性。3.對純石英光子晶體光纖和摻鍺柚子型光子晶體光纖布拉格光柵的制備工藝進行了研究,包括:光子晶體光纖的切割、光子晶體光纖與石英單模光纖的耦合、光子晶體光纖的載氫增敏和光子晶體光纖布拉格光柵的制備。4.對聚合物光纖布拉格光柵的制備工藝進行了研究,包括:聚合物光纖的紫外激光切割、聚合物光纖與石英光纖的耦合以及聚合物光纖布拉格光柵的制備。
[Abstract]:As an important passive fiber device, fiber Bragg grating (FBG) has important value in the field of optical fiber communication and fiber sensing. Different applications have different requirements for fiber Bragg grating (FBG). And many factors in the fabrication process will affect the optical properties of fiber gratings. Therefore, it is very important to accurately fabricate fiber gratings suitable for specific applications. The advent and development of photonic crystal fiber and polymer fiber provide a new platform for the development of fiber grating technology. Photonic crystal fiber grating not only has new spectral characteristics and application value. The preparation of photonic crystal fiber gratings plays an important role in the analysis of photonic crystal fiber spectral characteristics. Polymer fiber gratings not only have the advantages of soft, easy bending, light weight and so on. Moreover, the polymer materials have high sensitivity due to their low Young's modulus and other properties. In this paper, an optical system using 248nm KrF excimer laser and phase mask to fabricate fiber Bragg grating (FBG) is built. The factors that affect the optical properties of fiber Bragg gratings are studied. The fabrication process of photonic crystal fiber Bragg gratings is explored. The cutting method, coupling mode and spectral characteristics are also studied. Finally, the cutting of polymer fiber and the fabrication of polymer fiber grating are explored. The main contents are as follows: 1. An optical system using KrF excimer laser and phase mask to fabricate fiber Bragg grating is built. The reflection spectrum, transmission spectrum and dynamic growth process of fiber Bragg grating were observed and recorded by broadband light source and spectrum analyzer. The factors affecting the optical properties of fiber Bragg grating were analyzed. Especially the influence of excimer laser output parameters on the optical characteristics of fiber Bragg grating, including single pulse energy, pulse repetition rate. Beam uniformity and energy stability. 3. The fabrication process of pure quartz photonic crystal fiber and germanium doped grapefruit type photonic crystal fiber Bragg grating is studied, including: cutting of photonic crystal fiber. The coupling of photonic crystal fiber with quartz single-mode fiber, the hydrogen sensitization of photonic crystal fiber and the fabrication of photonic crystal fiber Bragg grating. The fabrication process of polymer fiber Bragg grating is studied. It includes UV laser cutting of polymer fiber, coupling of polymer fiber and quartz fiber and fabrication of polymer fiber Bragg grating.
【學位授予單位】：中國科學技術大學
【學位級別】：碩士
【學位授予年份】：2017
【分類號】：TN253

【參考文獻】

相關期刊論文 前2條

1 褚狀狀;游利兵;王慶勝;尹廣s，

本文編號：1407598