large-signal power gain 中文意思是什麼

large-signal power gain 解釋
大訊號功率增益
  • large : adj 1 (體積,空間,數量,規模等)大的,巨大的;(權限等)廣泛的。2 (心胸)寬廣的,度量大的;(...
  • signal : n 1 信號,暗號;信號器。2 動機,導火線 (for)。3 預兆,徵象。adj 1 暗號的,作信號用的。2 顯著的...
  • power : n 1 力,力量;能力;體力,精力;(生理)機能;〈常 pl 〉才能。2 勢力,權力,權限;威力;政權;權...
  • gain : vt 1 獲得;博得,掙得;贏得,打勝(戰爭、官司)。2 吸引;爭取…(到一邊),說服。3 (尤指通過努力...
  1. In order to measure the characteristics of such semiconductor optical amplifier, we adopted a set of measurement system. this measurement system can be used to measure the characteristics of all kinds of active or inactive optical passive components. such device presents good polarization insensitivity ( < 0. 9db ), wide 3db bandwidth ( > 33nm ) at 0 - 200ma and different input signal light wavelength and power, the maximum fiber - to - fiber gain of 10db, lossless operation current of 50 - 75ma for different input signal light wavelength and power, large extinction ratio ( > 50db ) and lower noise figure ( nf ) ( < 8db )

    與張瑞英博士一起,首次利用該種有源區結構制備出偏振不靈敏半導體光放大器,並在0 - 200ma注入電流范圍內獲得33nm的3db帶寬,在不同信號波長,不同信號功率0 - 200ma的注入電流范圍內,偏振相關損耗均《 0 . 9db ,在耦合差損為7db / facet的條件下,最大fiber - to - fiher增益達10db ,無損操作電流為50 - 70ma ,消光比達50db以上,而噪聲指數則低於8db ,最小可達4 . 6db 。
  2. The power driver yields output power with a gain variation less than 1. 18db and a maximum of 1. 37 - w output power within the entire band of interest. the large - signal bandwidth of this power - driver is 1. 5ghz

    在驅動級放大器的工作頻率范圍內實測的功率增益不平坦度小於1 . 18db ,獲得的最大輸出功率( 1 . 37w )帶寬優於1 . 5ghz 。
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