diode amplifier 中文意思是什麼
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Choosing y type reflection fiber optic detector, this thesis create a tiny displacement - detecting sensor that is made up of led ( light emitting diode ), fiber optic detector, electric eye, lock - in amplifier, display and other electro circuits
本論文採用y型反射式光纖探頭設計製作了一種微位移測量裝置，它主要由發光二極體、光纖探頭、 、鎖相放大器、顯示器及相關電路組成。 -
With the stringent requirement of low output voltage and high output current, semiconductor diode is necessarily replaced by synchronous rectifier to minimum voltage drop. because the existed driving schemes can not drive srs properly, two novel driving schemes for synchronous rectifiers in magnetic amplifier post regulating circuit are proposed in this paper
已有的同步整流管驅動電路主要面對多路輸出的主輸出電路，而應用磁放大器調節的輔助輸出電路同步整流管的驅動，現有的方法存在磁放大器調節與同步整流管驅動的失配，降低了開關電源的效率。 -
Tunnel diode amplifier
隧道二極體放大器 -
Varactor diode parametric amplifier
變容二極體參量放大器 -
Secondly, basing on the theory of on - off gain of small signal, the raman gain coefficient for frequency shift between 0. 5 and 20 thz of standard sigle mode optical fiber is measured by pump - probe method through a super luminescent diode ( sld ) as a broadband small signal probe source. thirdly, numerical simulation analysis of gain characteristic of raman fiber amplifier for c band wdm signal light is made according to the raman gain coefficient of the fiber measured before through target and four rank runge - kutta method. at the invariability of wavelength and maximum power of each of two pumps, schematic of powers of two pumps for best flatness on c band wdm optical gain was found out, at the same time, the factors of resulting in gain saturation is analyzed, too
本文首先應用經典的電磁理論對拉曼光纖放大器的工作機制進行了分析，然後，根據小信號理論推導出的開關增益求出了光纖拉曼增益系數的表達式，採用泵浦-探測波的方法，利用超輻射激光二極體（ superluminescentdiode簡稱sld ）作為探測光源，測量了所用標準單模光纖頻移為0 . 5 - 20thz的拉曼增益系數，之後根據所測得的光纖的拉曼增益系數譜對應用該類光纖構成的放大c波段wdm光信號的拉曼光纖放大器的增益特性採用打靶法和四階龍格- - -庫塔進行了數值計算，在給定了兩個泵浦光源的波長和最大功率后，找出了反向泵浦情況下使c波段wdm光源增益最平坦的兩個泵浦的各自最佳功率，同時也分析了導致信號光飽和的原因。 -
16kw and 48kw end - pump disk amplifier were designed, they condensed the pump radiation of the two diode arrays of 36 times and 27 times separately, which average radiant intensity were lower than 0. 5kw / cm ~ 2
設計了16kw和48kw端面泵浦片狀放大器，將兩種陣列輸出的平均發光強度不足0 . 5kw / cm ~ 2的泵浦光分別縮束36倍和27倍。 -
Adopts high quality and high efficient pin photo - diode. head - amplifier adopts low - noise caas module, can receive super low optical power
採用優質量高靈敏度pin光電二極體前置放大採用低噪音砷化鎵模塊，可以超低光功率接 -
Coupling efficiency not only affects fiber communication relay distance, but also affects the performance of edfa and semiconductor light amplifier ( sla ). so it is very important to improve coupling efficiency and reduce its cost. according coupling theory, the coupling of laser diode to single mode fiber is to meet the mode field diameter match and the phase match
它不僅直接影響光纖傳輸的中繼距離，而且對改善ld泵浦摻鉺光纖放大器（ ldp - edfa ） ， ld泵浦固體半導體激光器（ ldp - ssl ） 、半導體光放大（ sla ）等光通信器件及系統的性能上，在提高他們的性價比有著十分重要的意義。 -
Pin diode used as thermo sensor and heating component in this method, low frequency pulse power amplifier is used to substitute rf power in thermo - resistance measurement, and pulse wide compensation is used in dissipation measurement, then equipment require reduced and flexible of equipment rising
該方法以pin二極體作為感溫元件和發熱元件，採用功率脈沖源來代替射頻功率放大器對器件進行加熱進行熱阻測試，使用占空比補償法進行功耗測試，大大降低了設備要求，提高了測試設備的通用性。
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