optical bandwidth 中文意思是什麼
optical bandwidth
解釋
光頻帶-
Indoor wireless optical local area network ( wlan ) has advantages of wide bandwidth, strong anti - jamming and good handiness. it is the best resolution for future communications : mobility, personality, and multimedia application, and will have wide applying foreground. how to use the network bandwidth resource fairly and effectively is key to qos guarantee
在室內無線光通道中，如何公平、高效地利用網路帶寬是保障局域網通信可用性、可靠性和服務質量的關鍵所在，也正是無線光局域網媒質接入控制（ mediumaccesscontrol ， mac ）協議需要解決的核心問題。 -
A kind of optimized dynamic bandwidth allocation algorithm for distributed optical network
一種優化的分散式光網路的動態帶寬分配演算法 -
Because the wdm technology can fully utilize the enormous bandwidth of the optical fiber, the cost for transfering data can be greatly decreased. this enables wdm technology to be the most attractable technology in wide backbone network. it is predicted that in the near future, the wdm technology will be widely used in other networks
Wdm技術對光纖巨大帶寬的充分利用可以導致傳輸數據的價格大幅度的降低，這使它已經成為廣域骨幹網路中最具吸引力的技術，而且可以預言在不遠的將來，它還會在其他網路領域中得到更廣泛的應用。 -
Because this technology can fully utilize the enormous bandwidth of the optical fiber to transfer the data, the price for transfer data can be greatly decreased. this enables it to be the most attractable technology in wide backbone network. it is predicted that in the near future, the wdm technology will be greatly used in other networks
Wdm技術對光纖巨大帶寬的充分利用可以導致傳輸數據的價格大幅度的降低，這使它已經成為廣域骨幹網路中最具吸引力的技術，而且可以預言在不遠的將來，它還會在其他網路領域中得到更廣泛的應用。 -
The theoretical part mainly refers to studies of optical parametric chirped pulse amplification. we analyze some basic theories of opcpa, such as phase matching, parametric bandwidth, walk - off in space and time, gain property and so on, and compare the basic properties of bbo, lbo and kdp
理論部分主要是對新興的光參量啁啾脈沖放大技術的相位匹配、參量范圍、時空走離、增益及帶寬特性等基礎理論進行了分析，並對常用的bbo 、 lbo和kdp基礎特性進行了比較分析，這對于光參量啁啾脈沖放大系統的設計具有一定的實際意義。 -
Based on the propagation law of the cross - spectral density function in the space - frequency domain, the properties of polychromatic vector gsm beams through a paraxial optical abcd system are studied. the analytical propagation expressions for the cross - spectral density matrix of vector gsm beams passing through a paraxial optical abcd system are derived, which permits us to study the propagation properties of vector gsm beams, including the propagation - induced polarization changes, effect of the spectrum bandwidth and irradiance distributions in a unique way. there are some applications of the theoretical results
基於空間一頻率域中交叉譜密度函數的傳輸理論，研究了多色矢量gsm光束通過abcd光學系統傳輸時偏振特性的變化規律，首次推出了矢量高斯一謝爾模刑fgsm ）光束通過近軸abcd光學系統交叉譜密度矩陣的傳輸公式，並對矢量gsm光束傳輸中偏振的變化、譜寬的影響和強度的分佈等進行了統一研究。 -
Optical fibres - measurement methods and test procedures - bandwidth
光學纖維.測量方法和試驗規程.頻帶寬度 -
Optical fibres - part 1 - 41 : measurement methods and test procedures - bandwidth
光纖.第1 - 41部分:測量方法和試驗過程.頻帶寬度 -
Optical fibres - part 1 - 41 : measurement methods and test procedures ; bandwidth
光學纖維.第1 - 41部分:測量方法和試驗程序.頻帶寬度 -
Optical fibres - part 1 - 41 : measurement methods and test procedures - bandwidth iec 60793 - 1 - 41 : 2003 ; german version en 60793 - 1 - 41 : 2003
光學纖維.第1 - 41部分:測量方法和試驗程序.頻帶寬度 -
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 。 -
Among those revealed at the genetic and evolutionary computation conference held in london this summer were long - life usb memory sticks, superfast racing - yacht keels, ultra - high - bandwidth optical fibres, high performance wi - fi antennae ( evolved to avoid patent fees ), cochlear implants that can optimise themselves to individual patients and a cancer - biopsy analyser that was evolved to match a human pathologist ' s tumour - spotting skills
在今年夏天在倫敦舉行的」基因和進化計算大會「上所透露的一些（應用）中就有長壽命usb記憶棒、超速賽艇艇身、超大容量帶寬光纖， （為了逃避專利費而進化的）高性能無線網路天線、能適應單獨病人而自動最優化的助聽器，以及為匹配病理學家識別腫瘤技能而進化出的一種癌癥活組織檢查器。 -
Due to restriction with the array aperture transition time, traditional phased array radar works under relative narrow signal bandwidth, so this restricts the application of phased array radar in the field where high performance is demanded. however, optically controlled phased array radar ( ocpar ) adopts the photoelectron technology, counteracts the aperture transition time via the method of optical true time delay ( ottd ), so it can realize wide instantaneous bandwidth and squint - free operation ; meanwhile, it can realize the miniaturization of phased array radar and has super anti - electromagnetism interference capability
而光控相控陣雷達採用光電子技術，通過光實時延遲的方法來抵消孔徑渡越時間，可以實現相控陣雷達的寬帶寬角掃描;同時也可以使得相控陣雷達小型化，並具有強的抗電磁干擾的能力;另外，由於光纖傳輸具有損耗低、頻帶寬等固有優點，採用光纖連接雷達天線和雷達控制中心，可以使兩者的距離較採用同軸電纜有較大的提高，更有利於保護雷達控制中心。 -
With the advantages of high gain and output power, low noise, wide bandwidth as well as no relation with polarization, edfa changes the traditional optical - electrical - optical relay mode step by step in many fields, and becomes an indispensable device in modern optical communication systems. it saves the expensive cost in optical - electrical transition, makes equipment easy to operate and maintain
由於其本身具有高增益、高輸出功率、低噪聲、帶寬寬、與偏振無關等優點，在很多領域和場合， edfa正逐步取代傳統的光-電-光中繼模式，省去光電/電光轉換的昂貴成本，便於設備的運行維護，成為現代光纖通信系統中不可缺少的關鍵部件。 -
Among those revealed at the genetic and evolutionary computation conference held in london this summer were long - life usb memory sticks, superfast racing - yacht keels, ultra - high bandwidth optical fibres, improved cochlear implants and a cancer - biopsy analyser that matches a human pathologist ' s tumour - spotting skills
2007年夏天，在倫敦巨型的基因與進化計算論壇中揭露了一些成果，其中就包括了終身使用的usb記憶棒、超快的競賽遊艇的龍骨、超高的帶寬光學前為纖維、改進的耳蝸移植，以及一個與人類病理學家的腫瘤定位技能相吻合的癌癥活組織檢查分析儀。 -
In this paper, a new theoretical model is established for optical fiber pumped by broadband laser. using the new model, we have analyzed the influence of longitudinal - mode number, bandwidth and line - width of pumping source on sbs reflectivity, and pointed out the monochromaticity of pumping laser has obvious affect on optical fiber conjugator
成功解釋了激光線寬、縱模間隔與數目對光纖中sbs過程的影響，並通過數值計算分析了sbs閾值、反射率、相對穩定性、保真度等性能參數隨著注入激光能量、脈寬以及光纖長度、芯徑的變化趨勢。 -
The simulated results show that we can improve the sensitivity by setting the optical bias at / 2, reducing the gap of electrode, increasing the overlap integral factor, reducing the insert lose, adopting suitable segmentation number, increasing the electrode length, increasing the optical power, reducing the wavelength and the relative intensity noise and reducing the receive bandwidth ; obtain the wider bandwidth utilizing reducing the electrode length and the capacitance of modulator, segmentation the electrode ; increase the dynamic range using lowering noise, increasing the optical power at the detector and lower optical bias
通過計算得知，使傳感器相位偏置為/ 2 ，減小電極間距，提高電光重疊因子，減小器件插入損耗，採用合適的分段數，增加電極長度，增大光功率，降低激光的波長，減小相對強度噪聲，減小接收帶寬，對提高靈敏度的效果是非常明顯的。而減小天線長度，降低調制器電容，電極分段，都可以獲取較大的帶寬。降低系統噪聲;增加到達探測器的光功率，採用較低的光學偏置，都可以增大線性動態范圍。 -
Providing a novel access scheme for solving “ last mile ” wideband access and global person communications. in wireless optical code multiple access ( w - ocdma ) network, media access control ( mac ) is a key issue, which determines network performance 、 bandwidth efficiency 、 complexity and cost of terminal
無線光碼分多址（ w - ocdma ）接入網中，數據鏈路層的媒質接入控制技術（ mac ）至關重要，它直接影響網路的性能、帶寬利用效率、終端設備的復雜度和成本。 -
In all kinds of alternatives, atm based passive optical network ( apon ) has the most promising prospect, which supports broadband service and service transparency. in addition, it combines the advantages of multi - service and multi - bit rate capabilities of atm and the advantages of wide bandwidth and low cost of pon
在各種可能的接入方案中，長遠看基於atm的無源光接入網（ apon ）是最具市場潛力的接入方案，它支持寬帶接入業務，業務透明，結合了atm的多業務、多比特率技術和無源光接入網的寬帶寬、低成本優勢。 -
Computer technology and internet communication have been developed rapidly since the end of 20th century, which made a lager communication bandwidth was demanded synchronously. in the circumstances, the wavelength division multiplexing ( wdm ) technology was brought forward and applied widely, whereas, the development of wdm systems put forward a series of advanced qualifications about laser sources of optical communication
20世紀末以來，計算機與網路通信技術得到飛速發展，對網路帶寬的需求也隨之不斷增長，波分復用技術因適應這種需求而得到迅速推廣，同時也給通信激光源的性能帶來更高的要求。
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