A simultaneous dual-wavelength continuous wave, quasi-cw or linearly polarized wave diode-end-pumped Nd:YAG laser operating at 1319nm and 1338nm is demonstrated. To the best of our knowledge, our experimental results achieve the highest level in the domestic domain. The simultaneous dual-wavelength laser provides an experimental basis for generating highly coherent THz wave radiation of 3.23THz by nonlinear optical difference frequency method.2. A diode-end-pumped Nd:YAG crystal, type-I critical phase matching LBO crystal intra-cavity frequency doubled, simultaneous multi-wavelength red laser at 659.5nm, 664nm and 669nm is firstly realized.

本論文主要圍繞用于差頻產(chǎn)生THz輻射源的多波長激光器及THz光子晶體的帶隙特性分析而展開欧美一级一二三，論文的主要內(nèi)容包括：一黄片gb、從LD端面泵浦固體激光器的激光閾值公式出發(fā)日韩无码一级黄色毛片，理論計算了腔鏡對于兩個波長的透過率關(guān)系97人妻人人操人人摸，實現(xiàn)了LD端面泵浦Nd：YAG 1319nm/1338nm雙波長激光連續(xù)久久综合加勒比金8天国、準連續(xù)及線偏振穩(wěn)定輸出色色色色综合网站。

Wavelength defined,, wavelength control, transverse and longitudinal wave length , wavelength and frequency relations.

波長定義，亚洲黄色，波長掌握亚洲经典一区二区三区，橫波與縱波波長，波長與頻率關(guān)系a人人操人人干。

The spectrum of its trajectory by the cut-off wavelength of the two should be complementary to each other is the relative wavelength, which complement each other on the wavelength of light known as the fill color.

其對光譜軌跡所截的任兩點波長即為相對應(yīng)的互補波長欧美就要操，而這一對互補波長的光稱為補色。

The measurement shows that 310.8 nm is the suitable wavelength for detection of trichloroethylene and 322.5 nm is the suitable wavelength for detection of tetrachloroethylene in this wavelength range.

研究表明麻花豆传媒剧国产剧免费，該波長范圍內(nèi)三氯乙烯的最佳檢測波長為310.8 nm男男无码免费专区男人的天堂，四氯乙烯的最佳檢測波長為322.5 nm。

The results are as follows:(1) The relative spectrum sensitivity of the two kinds of compound eyes were similar, both were most sensitive to wavelength of 562nm, and also sensitive to wavelength of 400nm亚洲簧片AB在线观看、483nm;(2) The absolute sensitivity curves to these three kinds of sensitive light of the two kinds of compound eyes were similar, all increase with the increment of luminance strength, but the compound eyes of corn borer had stronger response to wavelength of 562nm and 483nm;(3) The two kinds of compound eyes showed similar absolute sensitivity curves to white light, however, showed different sensitivity to light at different time or under different adaptative state.

結(jié)果如下：（1）二者具有相似的光譜反應(yīng)曲線欧美性交三级视频，均對562nm的光最敏感，另外對400nm麻豆视频免费播放、483nm光也較敏感人人泡人人干人人操；（2）二者對這三種敏感光的光強度曲線近似，在一定范圍內(nèi)均近似線性遞增无码在线点开看，但玉米螟復眼ERG在562nm和483nm下具有更高的反應(yīng)幅度久久久www黄页免费网站；（3）二者對白光的光強度曲線也近似，但隨復眼適應(yīng)狀態(tài)及測試時間的不同国产538黄色网站在线观看，表現(xiàn)出不同的光敏感性夜间福利av。

It is found from experiment that when pumped by skew light along the fibre's axis, both transverse electric wave and transverse magnetic wave exist in WGM lasing emission simultaneitly. With the increase of refractive index of cladding dye solution, the wavelength spacing between TE and TM waves of which the radial mode number and angular mode number are the same value decreases, and the central lasing wavelength of WGM bluely shifts to short wavelength direction.

實驗發(fā)現(xiàn)，在抽運光以偏斜光線方式沿光纖的近軸向抽運時直接观看黄的免费网站，回音壁模式的光纖激光輻射中久久福利亚洲，既存在光電矢量和光纖徑向垂直的橫電波，也存在光電矢量和光纖徑向平行的橫磁波性直播无遮免费观看网站；隨增益包層染料溶液折射率的增加精品福利，徑向模式數(shù)和角模式數(shù)相同的TE波和TM波之間的波長差單調(diào)減小，回音壁模式激光輻射的中心波長向短波方向移動18岁禁看黄色，輻射的波長范圍變窄欧美日韩日卡。

In this dissertation, we consider following problems: priority-based wavelength assignment algorithm in restorable WDM transport networks, design of resilient WDM mesh networks, design protection for WDM networks without and with considering wavelength continuity constraint, efficient placement of wavelength converters.WDM Network will play important role in future backbone networks.

本文主要研究和WDM光傳送網(wǎng)生存性有關(guān)的問題，主要集中在以下幾個方面：抗毀WDM網(wǎng)絡(luò)中的基于優(yōu)先級的波長分配算法久久夜色精品国产欧美一区不卡，網(wǎng)狀WDM網(wǎng)絡(luò)的抗毀設(shè)計人干人干视频网站，不考慮波長連續(xù)性限制時WDM網(wǎng)絡(luò)的保護設(shè)計老妇女AV，以及考慮波長連續(xù)性限制時WDM網(wǎng)絡(luò)的保護設(shè)計和波長轉(zhuǎn)換器的合理放置。

Analytical formulae are presented for the first time to describe the shift in the resonance wavelength of LPG in response to etching of the fiber cladding or a change in the external refractive index. The accuracy of the formula is confirmed by comparision with numerical simulations and experimental results. We demonstrated that the resonance wavelengths of an etched LPG are more sensitive refractive index than those of an unetched grating. The bending properties of long period fiber grating written in different type fiber are studied experimentally. The transmission peaks and the central wavelength of LPG change with the bending of the fiber. A new peak appears at the shorter wavelength when the fiber is being bent. The changes of the peaks are different for different photosensitive fiber. Those properties have broad application foreground in fiber sensors and tunable filters.

分別從理論和實驗上對長周期光柵的折射率特性以及光纖包層半徑對長周期光柵特性的影響進行了研究曰批免费视频观看40分钟，首次給出了描述光纖包層半徑腐蝕和外界折射率改變與長周期光柵共振波長關(guān)系的理論表達式亚洲欧美日韩视频二区，實驗與理論和數(shù)據(jù)模擬的結(jié)果很好符合，利用腐蝕光纖包層的方法可以有效地提高LPG的折射率靈敏度456亚洲人成影视；對不同光纖中寫入的長周期光柵的彎曲特性進行了實驗研究一级裸交有声音A片，LPG的透射峰形狀及其中心波長隨光纖彎曲而發(fā)生變化，并且隨著彎曲將在短波方向出現(xiàn)新的透射峰91se国产在线视频，其透射峰的變化規(guī)律因所用光敏光纖的不同而不同性色精品视频网站在线观看，這一特性在光纖傳感和可調(diào)諧濾波器方面有重要的應(yīng)用前景。

The function of 3dB fiber loop mirror in fine wavelength partition is studied. With this theory, a novel narrow linear band, dual-wavelength switchable Er-doped fiber laser is realized.2. An unpumped Er-doped fiber and broadband fiber Bragg grating with high reflectivity is served as an auto-tracking filter, where the space hole-burning effect appears when the laser signal travels and forms standing wave, thus the generation of multi-longitudinal-mode is suppressed. Then the high birefringence fiber loop mirror is introduced to act as comb-liked wavelength filter.

主要包括：1农村少妇A级毛片免费看、發(fā)現(xiàn)3dB光纖環(huán)鏡的精細波長分割作用成人免费国产剧情视频网站大全下载，并利用這種分割機制，研制成功一種窄線寬黄色带三级片视频、雙波長可轉(zhuǎn)換的摻鉺光纖激光器久久久久久综合国语对白。2、利用未受泵浦的摻鉺光纖以及寬帶高反射率的光纖布喇格光柵做自動跟蹤濾波器男操女的骚黄视频在线，當穿行其中的激光信號構(gòu)成駐波時永久操，出現(xiàn)了空間燒孔效應(yīng)，從而抑制了多縱模的產(chǎn)生国产一区二区欧美日韩在线观看，引入高雙折射光纖環(huán)鏡做梳狀波長濾波器欧美大片免费喷水网站网址。

In order to acquire the largest extinction ratio of the converted signal in the cross gain modulation wavelength conversion, the signal wavelength λ pk,s should be longer than the small signal gain peak wavelength of the semiconductor optical amplifier.

增益調(diào)制型波長轉(zhuǎn)換中，為得到轉(zhuǎn)換后信號最大的消光比国产大片自拍，信號光波長應(yīng)該比半導體光放大器的小信號增益峰值波長長美女a片久久九。