線性光柵 的英文怎麼說
中文拼音 [xiànxìngguāngzhà]
線性光柵
英文
linear grating- 線 : 名詞1 (用絲、棉、金屬等製成的細長的東西) thread; string; wire 2 [數學] (一個點任意移動所構成的...
- 性 : Ⅰ名詞1 (性格) nature; character; disposition 2 (性能; 性質) property; quality 3 (性別) sex ...
- 光 : Ⅰ名詞1 (照耀在物體上、使人能看見物體的一種物質) light; ray 2 (景物) scenery 3 (光彩; 榮譽) ...
- 柵 : 柵名詞(柵欄) railings; paling; palisade; bars
- 線性 : [數學] [物理學] linear; linearity線性代數 linear algebra; 線性方程 linear equation; 線性規劃 line...
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In chapter 4, the spectral characteristics and its application in optical add - drop multiplexer ( oadm ) and in multi - channel dispersion compensator of linearly chirped moir fiber grating are studied. according to the coupled - mode theory and considering the construction features, we derive the couple - mode equations that describe the mode interaction in this kind of grating
首先從耦合模理論出發,結合線性啁啾moir光纖光柵的結構特性,建立了分析線性啁啾moir光纖光柵的耦合模方程,通過數值求解耦合模方程,研究了線性啁啾moir光纖光柵的光譜特性和時延特性。( 3 ) process and analyze the experimental data, figure out the temperature characteristic curves and fix the exact value of each sensing fbgs in the network
( 3 )對實驗數據進行了處理和分析,得出了傳感網路中各個測量光柵的溫度一波長特性曲線,最終確定了其溫度值。The spectral and group delay characteristics are studied and the potential uses of this type of grating for wavelength selection and dispersion compensation are discussed. a novel scheme of oadm configuration based on linearly chirped moir fiber gratings is proposed. we have designed a lcmfg to compensate dispersions for eight channels at the same time
在此基礎上,提出了一種新型的基於線性啁啾moir光纖光柵的光分插復用器( oadm )的結構設計方案;並設計出一種中心波長、相鄰中心波長間隔都符合itu規定的dwdm波長標準的基於線性啁啾moir光纖光柵的多通道色散補償器件。Several materials with large coefficient of expansion were selected to make packaging components, and it was found that the packaging materials have good temperature sensitivity and compatibility with optical fibers. experimental accuracy and repetition of fbg temperature sensitivity and compensation were discussed. have selected several materials which has bigger coefficient of expansion to do packaging components, have made many temperature experiments, there have not flaws, such as aging, crackle, absciss layer, packaging materials have good temperature sensitivity and compatibility with optical fiber ; have designed the simple and practical packaging components, have performed a serials of experiments about accuracy and repetition of fbg wave - length, have obtained the first step conclusion ; have analyzed the result and made comparison between the result of different experiment, have summarized the best packaging effect and several rules to reduce mistskes
本文所做的主要工作包括以下幾個內容:一、選取了常見的熱膨脹系數大的材料製作封裝元件,經過多次一80到80反復測試,封裝元件沒有出現老化開裂、封裝裂紋、空洞、離層等缺陷,封裝材料具有良好的溫敏穩定性及復用性,與光纖相容性較好;二、對光纖光柵進行簡單、實用的封裝處理,就封裝效果的優劣性、波長測量的準確度、重復性和封裝時產生的波長損失等方面進行了一系列的實驗,得出了初步的結論;三、對溫敏和溫度補償式封裝的實驗數據進行了詳細的分析和對比,從數字上對溫變過程中光纖光柵中心波長的改變及溫變曲線進行了定量的分析,在大量實驗數據分析結果的基礎上,總結出哪種材料封裝效果更好,以及如何有效的減小實驗誤差。2. experimental studies on ring cavity fiber lasers ( 1 ) a novel electrically tunable fbg edfl is reported
2 .環形腔光纖激光器的實驗研究( 1 )用磁致伸縮棒對光纖光柵環形腔激光器進行了線性電調諧。If alternate diffracted orders are blocked out ( still assuming the grating as our specimen ), the number of lines in grating would appear doubled ( a spurious resolution )
假如交替地遮擋衍射級(仍假設為光柵標本) ,線性光柵的數量會成雙數(偽解析度) 。By use of a micro - displacement set we realized a very high precision tuning. the experimental results verified the theoretical predication. the realized tuning ranges of the two ofbg are 6. 320nm and 5. 762nm respectively
同時,建立了ofbg調諧測試裝置,實現了ofbg的高精度線性調諧,兩根光柵分別實現調諧范圍6 . 320nm和5 . 762nm ,調諧裝置具有很好的重復性。( 3 ). the flattening arithmetic of an edfa was presented based on the inter - correlative function between the gain spectrum function of the edfa and that of the reserve transmission spectrum of the lpfg. for optimal matching between the two spectra, the flattening arithmetic calculates the variation of the resonant amplitude and wavelength of the lpfg
Iii .提出了一種動態增益均衡的平坦演算法,這種演算法的本質就是利用摻鉺光纖放大器增益譜函數和新型長周期光纖光柵的透射譜反轉譜函數的相關性,給出新型長周期光纖光柵諧振峰幅度和位置的調節量,使改變后的新型長周期光纖光柵的反轉譜線能和edfa的增益輸出譜線進行最佳匹配。On the basis of fbg " working mechanism which is expounded on the approach of mode - coupled theory, the paper analyzes and compares the characteristics of some typical demodulation mechanisms. a novel demodulation mechanism for fbg with a cantilever beam to linearly tunable filtering is designed, and the theoretical and experimental analysis on this demodulation mechanism is explained. although the experiment conditions restrict it, the analysis of the measured data show the mechanism has great effect on the practical applicationjiot only in optical communication and sensor systems
在使用模式耦合理論詳盡地闡述了光纖光柵工作原理的基礎上,本論文分析比較了幾種典型的傳感解調方案的特點,然後設計了一套新穎的基於懸臂梁線性調諧濾波的光纖光柵解調系統,並對這套系統進行了理論和實驗研究。盡管由於實驗條件所限,最後的實驗結果與實際值稍有差距,仍得到了許多有益的結論。Strain measuring system based on chirped gratings and edge linear filtering demodulation technology
啁啾光柵結合邊緣線性濾波解調的fbg應變測量系統The rasterizer interpolates pixel color in a linear manner, using the texels of the two nearest textures
光柵化程序使用像素的兩個最近紋理的紋理像素,以線性方式插補該像素的顏色。The self - q - switched pulses of high erbium - doped fabry - perot cavity fiber laser are observed and theoretically analyzed. ( 2 ). utilizing the non - linearity characteristics of single mode fiber - back stimulated brillouin scattering ( bsbs ) and the wavelength - selecting characteristics of fiber gratings, self - q - switched pulses are achieved from a linear cavity erbium - doped fiber laser pumping by a 980nm ld continue wave ( cw ) pumping, the pulse width is 2. 2ns and the repetition frequency of pulses is 64. 5mhz
( 2 )利用單模光纖的非線性效應背向受激布里淵散射( bsbs )和光纖光柵的選頻特性,採用980nm半導體激光器連續泵浦方式,在線性腔摻鉺光纖激光器中實現了自調q運轉,獲得脈沖寬度( fwhm )約為2 . 2ns ,重復頻率為64 . 5mhz的穩定的光脈沖輸出。5. the sensing properties of multimode fiber gratings was investigated experimentally and theoretically in this paper. experimental results show that the bragg wavelength of grating in multimode graded - index fiber is linearly dependent on its temperature and axial strain and its repeatability is good
五、對多模光纖光柵的傳感特性進行了實驗研究與理論分析,結果表明這種光柵三個反射峰的布喇格波長隨溫度和軸向應變變化均呈現出良好的線性關系,並且重復性相當好。The mechanism for optical storage in these materials has been attributed to a statistical reorientation of the azobenzene chromophors perpendicular to the polarization of the incident electric field of the pump laser beam. the photoinduced birefringence and holographic storage in methyl orange dyes ( mo ) doped polyvinyl alcohol ( pva ) films were reported firstly in this thesis. the relationship between the photoinduced birefringence and the dye content and pumping power was investigated by using the writing light of 532 nm ( double - frequency of nd : yag laser ) and the reading light of 632. 8 nm
本文研究了甲基橙( mo )偶氮苯染料摻雜聚乙烯醇( pva )薄膜的光致雙折射和全息光存儲特性,利用yag激光2倍頻( 532nm )作為寫入光, he ? ne激光( 632 . 8nm )作為讀出光,研究含有不同染料濃度pva薄膜的光致雙折射特性,探討了光致雙折射和泵浦光功率的關系,實現了全息光存儲,所得光柵生長曲線包含快過程和慢過程,快過程以異構相位光柵的生長為主,慢過程以取向光柵的生長為主,對此實驗結果本文給出了合理的理論解釋。This paper analyzes the optical characteristics of fiber grating according to the theory of mode - coupling in nonsymmetrical optical wave - guide, which affords the gist for the testing of optical characteristics and tuning characteristics of fiber grating. moreover, we deduce the linear relationship between reflected wavelength shift of fiber grating and vertical displacement of cantilever beam which the fiber grating is sticked on
論文根據非均勻光波導中的模式耦合理論,分析討論了光纖光柵的光學特徵,為光纖光柵的光學特性和調諧特性的測試提供理論依據;並根據材料力學原理推導了光纖光柵波長漂移量與側向位移的線性調諧關系。For the first time, three types of sine structures for wavelength linear scale in grating spectrum instruments are described systematically. the tuning structures for wavelength linear scale in both littrow and littman set - up external - cavity laser diodes are designed
( 3 )首次系統地分析了光柵光譜儀器中的三類正弦機構,分別設計了可實現波長線性標度的littrow和littman外腔半導體激光器調諧機構。Iron - doped photorefractive lithium - niobate crystals ( linbo3 : fe ) have good electro - optic, acoustic - optic, nonlinear characterizations, and hardly light absorption and photorefractive sensitivity in the wavelength around 1550nm, which makes them attractive for using as passive optical components in telecommunication networks
而光折變linbo _ 3 : fe晶體具有良好的電光、聲光以及非線性特性,且在現有的通信窗口1550nm波長處幾乎沒有光吸收,對光的敏感性很小,是光折變光柵應用於光通信系統的首選材料。Base on the analysis of the grating linear displacement measurement theory, the measure errors especially the subdivision error of the grating scale, this paper focuses on the theory of switch and merge of dual grating scales ’ signals, builds the design criteria of high speed high precision displacement measurement by using dual grating sales, designs the switch picking reference with high precision and fast switch and merge method, analyses the errors brought in by switch and merge of the duals grating scales
在分析光柵線性位移測量原理、光柵尺的測量誤差尤其是細分誤差的基礎上,本文重點研究雙光柵尺切換與合成的原理,建立了基於雙光柵尺高速高精度位移測量的設計準則,根據設計準則設計了切換基準拾取方法以及快速切換與合成方法,分析了雙光柵計數值切換合成的誤差。In photorefractive crystal light illumination changes the refractive index of the crystal due to linear electrooptical effect, which in turn changes the light distribution. as a result of the development of this process, a beam, called the phase conjugation wave, leaves the crystal back along the direction of the incident beam and is its phase conjugate replica
光折變晶體在光輻照下,通過晶體中的線性電光效應而產生折射率隨光強的空間分佈而變化,即在晶體內建立起體相位柵。As a result, the peak power, pulse width and time delay of the output pulse have been investigated in detail, including the chirp of the input pulse and the linear dispersion of the filter, and some new and important conclusions have been obtained for the first time
並分析了濾波器的線性色散和入射脈沖的啁啾大小對輸出脈沖的影響,對實際的光通信系統中器件參量的設計具有一定的指導意義。利用耦合模理論,對幾種典型的光纖光柵進行了研究。分享友人