Based on the requirement and target of the projects, firstly, pcf bragg grating are investigated theoretically and experimentally. moreover, the effects of filling high refractive index material ( nematic liquid crystal, nlc ) in pcfs on the transmission mechanism and propagation properties are studied by using plane - wave method and finite - element method ( fem ), farther, several novel pcfs are proposed and designed. lastly, we propose and demonstrate a clad - pumped er3 + / yb3 + - codoped fiber laser, which integrate all performances of broad - band tunable wavelength, uniform output power spectrum, high repeat frequency and high average power to together
本論文選題于國家973 、 863以及國家自然科學基金等項目,結合課題的要求和主要目標,在對光子晶體光
纖( pcfs )傳輸特性研究的基礎上,首先對光子晶體光
纖光柵進行了理論和實驗研究;然後,採用平面波展開法和有限單元法分析了在光
纖的空氣孔中填充高折射率液晶對光
纖傳導機制和傳輸特性的影響,提出並設計了幾種新型光子晶體光
纖;最後,提出並研製成功連續可調諧、輸出功率譜均衡的全光
纖化、高功率包層泵浦鉺鐿共摻光
纖激光器實驗樣機。
A further family of fibre optic chemical sensors has either surface atached molecular recognition sites or a reaction chamber for achieving specific molecular detection
光
纖化學傳感器還具有表面分子識別位點或
化學反應部位,可用於特定分子的檢測。
The cloak is made of metamaterials, which are mixtures of metal and circuit board materials such as ceramic, teflon or fiber composite
而這種變形材料是用包括陶瓷,特富龍和光
纖化合物等金屬和電路板材料做成的。
( 6 ) the study of electroplating ni ~ co coating on silica fiber showed that a special pretreatment must be preformed before electroless nickel because of the smooth surface of silica fiber. ( 7 ) a ni - co coating was acquired by means of eletroless and electroplating
( 6 )石英光
纖表面電沉積ni - co合金鍍層的研究表明,石英光
纖化學性質穩定,表面光滑,
化學鍍前必須經過特殊的預處理工藝:脫脂,粗
化,敏
化,活
化,烤烘等。
In the first part, the article summarized the definition and importance about dissolved oxygen ( do ), the general methods of measuring do. the origin, development and excellence of usage in chemical sensor with fiber - optical technology, the characteristic of fiber optical chemical sensor are introduced. those deferent fluorescence indicators have been used in oxygen sensors during more than twenty years and their deferent capability as fluorescence indicators
在第一章中,在研讀文獻的基礎上綜述了溶解氧的定義和在生產生活中的重要意義;溶解氧測定的常規方法;光
纖技術的起源、發展及其應用於
化學傳感器的優點;光
纖化學傳感器的原理特點;探索了不同時期應用於氧傳感器的熒光指示劑的種類和性能;制備氧傳感探頭的幾種方法原理和光
纖氧傳感器在醫學、生物、海洋監測等領域中的應用現狀。
This all - fiber - structure high power fiber laser has the marked sense of practicability
這種全光
纖化結構的高功率光
纖激光器具有顯著的實用
化意義。
Stainless steel filter elements we manufacture are widely used in chemical fiber, petroleum, chemical industry, electric power, pharmaceutics, machinery, metallurgy, ceramics, dispose of sewage, foodstuff and beverage, cosmetic etc
產品廣泛用於石油
化纖化工電力制藥機械冶金陶瓷污水處理食品飲料
化妝品等行業。
Most of the company ' s business is done directly with customers in schools ( including high school of technology, college, university and graduate school ), public and private research and development institutions, electronics, house electric appliance, information, semiconductor, telecommunication, power company, heavy industries ( such as motor, cable and wire, transformer, switch board, etc. ), engineering, transportation ( such as shipbuilding, automobile, etc. ), steel, petro - chemical, chemical fibre, textile, plastic, etc
本公司往來之客戶大多為直接用戶,其業別包括:學校{高工、專科、大學、研究所} 、公私立研究發展機構及國防工業研究機構等、電子業、電機業、家電業、資訊業、半導體產業、電信業、電力公司、重電業{如馬達、電線電纜、變壓器、配電盤. . . . } 、工程公司、運輸業{造船、車輛. . . . } 、鋼鐵業、石油
化纖化紡、涵蓋面甚廣。
Huarun company certificate chongqin jindi fiberglass chemical co. ltd as sole agent
公司授權重慶金地玻
纖化工有限公司為我公司的獨家代理
Hfc is a kind of analog transmission technology, which is incompatible with the digital and optical trend of the entire telecom network
Hfc屬于模擬傳輸技術,與整個電信網路的數字化、光纖化的發展趨勢不相吻合。