variable optical attenuator造句
例句與造句
- The design of the transmissive variable optical attenuator
透射型電可調(diào)光衰減器的設(shè)計 - Polymer - based variable optical attenuator
聚合物熱光可變光衰減器 - The temperature character of a novel variable optical attenuator
新型可變光衰減器的溫度特性研究 - Variable optical attenuator is one of the key devices in wavelength - division multiplexing systems
可變光學(xué)衰減器( voa )是波分復(fù)用系統(tǒng)的關(guān)鍵器件之一。 - This paper introduces the principal theory , process and test technology of variable optical attenuator
本文分析了集成化可變光學(xué)衰減器的工作原理、工藝制作和測試技術(shù)。 - It's difficult to find variable optical attenuator in a sentence. 用variable optical attenuator造句挺難的
- This thesis presents a study on the non - silicon based mems optical switch and variable optical attenuator . by fully utilizing the available micro - machining capability , we developed a series of devices based on electrical discharge machining technique
在閱讀國內(nèi)外相關(guān)文獻的基礎(chǔ)上，利用實驗室現(xiàn)有條件，制作了一系列器件，并對器件進行了性能測試與分析。 - The content of the thesis is classified into three parts . the first part summarizes the modern tecchnoligies for optical switches and variable optical attenuators , analyzes the pros and cons of the techniques involved
第一部分主要研究了現(xiàn)有光開關(guān)及可調(diào)光衰減器的實現(xiàn)技術(shù)，對各種技術(shù)的優(yōu)點及缺點進行了分析，并對光開關(guān)及可調(diào)光衰減器技術(shù)現(xiàn)狀進行了概述。 - The last part of the thsis presents a novel fast response digital variable optical attenuator . this device is driven by two electromagnetic driving units rather not stepper motors . a wide attenuation ( 40db ) was fully digitized and can be set by a certain number of driving pulses
論文最后針對現(xiàn)有數(shù)字可調(diào)光衰減器均由步進電機驅(qū)動，體積龐大，造價高昂且速度緩慢的缺點，利用微反射單元設(shè)計了一種高速數(shù)字式可調(diào)光衰減器。 - We had fabricated the variable optical attenuator of mmi structure with ridge wave - guide structure and also studied the reactive iron etching of silicon . at last , we tested the variable optical attenuator and draw some conclusions . after testing , we can draw a conclusion that the technology parameter of the device is ideal
在分析y分支和多模干涉器型( mmi )的光學(xué)衰減器結(jié)構(gòu)的基礎(chǔ)上，采用脊形波導(dǎo)結(jié)構(gòu)制作了mmi結(jié)構(gòu)的可變光學(xué)衰減器，并對硅的刻蝕技術(shù)進行了研究和探討，最后對制得的器件進行了測試研究。 - Electro - optical curves for lc cells have been analyzed and it has been shown mat a large attenuation range and a shallow attenuation slope can be achieved simultaneously for a variable optical attenuator based on a parallel - aligned lc cell with an appropriate surface anchoring strength . as compared with the existing liquid crystal - based voa structure ( using two cascaded lc cells with a particular material ) , the present structure is simple and has no special requirement for the lc materials
提出了基于弱錨定平行排列液晶盒的可變光衰減器(衰減范圍大、衰減曲線下降平緩以保證調(diào)節(jié)精度) ，與己有液晶型可變光衰減器結(jié)構(gòu)(選用特定液晶材料、兩個液晶盒級聯(lián)結(jié)構(gòu))相比較，本論文提出的基于弱錨定平行排列液晶盒的可變光衰減器結(jié)構(gòu)簡單，同時對于液晶材料無特殊要求。 - The third part introduces the design , fabrication , analysis and testing of serveral types of variable optical attenuators . we have designed a micro - machining based voa that consists of an electromagnetically actuated gold - coated silicon mirror rotating around a 100 # am diameter shaft and a miniature driven coul . the voa is capable of fast dynamic response ( < 2ms ) , great dynamic range ( 0 ~ 35db ) , and low return loss ( < 55db )
論文利用有限元分析軟件ansys對該器件進行工作曲線分析及動態(tài)響應(yīng)分析，分析結(jié)果與實測結(jié)果接近，實測結(jié)果表明，驅(qū)動電壓0 8v ，工作范圍0 35db ，動態(tài)響應(yīng)時間為2ms ，插入損耗小于0 . 8db ，回波損耗小于- 50 . 5db 。 - Based on the above background and under the support of tianjin natural science foundation project : intelligent fiber amplifiers and light sources , tianjin natural science foundation project : ( c + l ) broadband fiber amplifier and nankai - delta ( tianjin ) project : development of gain flattened erbium - doped fiber amplifiers , this dissertation is mainly focused on the study of novel gc - edfa , gain and nf ( noise figure ) improvement of edfa , light sources , multi - wavelength fiber laser and voa ( variable optical attenuator )
基于以上背景,在天津市重點基金項目? ?智能型光纖放大器和光源的研究、天津市重點基金項目? ? ( c + l )超寬帶摻雜光纖放大器和南開-達爾泰(天津)項目? ?開發(fā)增益平坦的摻鉺光纖放大器的支持下,本論文主要圍繞新型gc - edfa 、 edfa性能的優(yōu)化、增益控制用光源、多波長光纖激光器以及可調(diào)光衰減器等課題進行了理論和實驗研究。 - In wavelength division multiplexing ( wdm ) optical communication networks , power equalization and adjustment between channels demand variable optical attenuator ( voa ) be capable of providing low power consumption , low insertion loss , polarization independence , integration compatibility and flatness in a wide wavelength range . among the presented voas , thermo - optic type owns superior polarization dependence upon electro - optic one , and thermo - optic voa can be driven with much lower power than micro - electro - mechanic system ( mems )
在波分復(fù)用( wdm )光通信網(wǎng)絡(luò)中，多信道間的功率均衡和調(diào)整需要具有良好特性的光可變衰減器( voa ) ，這些特性包括：低功耗、低插入損耗、偏振無關(guān)、易于集成以及大波長范圍內(nèi)的通帶平坦性。 - Meanwhile , with the development of wdm / dwdm communication systems , more and more attention is paid on the edfas with broader bandwidth , good gain and noise feature , and gain clamping , etc . according to the tianjin natural science foundation project : intelligent fiber amplifiers and light sources , the tianjin natural science foundation project : ( c + l ) broadband fiber amplifier and the nankai - delta ( tianjin ) project : development of gain flattened erbium - doped fiber amplifiers , this dissertation is mainly focused on the study of novel gain - clamped edfa , light sources , multi - wavelength fiber laser and variable optical attenuator for gain - clamped usage , gain and noise improvement of edfa , and broadband edfa
Wdm / dwdm通信系統(tǒng)的發(fā)展又需要edfa具有更大的帶寬、優(yōu)良的增益和噪聲特性和增益控制等功能?；谏厦娴那闆r,并結(jié)合天津市重點基金項目? ?智能光纖放大器光源的研究、天津市重點基金項目? ? ( c + l )超寬帶摻雜光纖放大器和南開-達爾泰(天津)項目? ?開發(fā)增益平坦的摻鉺光纖放大器等課題,論文主要圍繞新型增益控制edfa 、增益控制用光源、多波長激光器及可調(diào)光衰減器、 edfa性能優(yōu)化和超寬帶edfa等方面進行了理論和實驗研究。 - The wavelength dependence of the directional couplers is modeled and with this model optimal designs of planar wavelength circuits based on mach - zehnder interferometers and their cascaded forms are presented . liquid crystals are widely used in optical information processing technologies . optical devices based on liquid crystals , such as variable optical attenuators ( voas ) , switches and tunable filters , have been introduced into the area of optical communications recently
在基于級聯(lián)mach - zehnder干涉儀的寬帶器件設(shè)計中，本論文建立了定向耦合器波長敏感性的近似模型，并在此基礎(chǔ)上提出了通過對初始結(jié)構(gòu)(即不考慮定向耦合器波長敏感性的設(shè)計結(jié)果)做微擾來確定寬帶器件結(jié)構(gòu)參數(shù)的設(shè)計方法。