Because of their high working current density,the output power,lifetime and the spectrum stability may be strongly influenced by the temperature in the active region increasing with injection current.
计算结果表明,热阻变化受芯片宽度和长度的影响较大,可以达到两个数量级;当注入功率达到1 W时,有源区的温度将接近50 K。
The multiple-active-region tunneling-regenerated strained-quantum-well vertical-cavity-surface emitting laser (VCSEL) with a more-than-one differential quantum efficiency is proposed.
提出了一种多有源区隧道再生应变量子阱垂直腔面半导体激光器(VCSEL)结构,其微分量子效率可以大于1,并且可以得到阈值电流小、输出功率大的器件。
A novel multiple-active-region tunneling-regenerated strained-quantum-well vertical-cavity surface-emitting lasers (VCSELs) with a greatef-than-unity differential quantum efficiency is proposed.
本文通过提出具有优点为微分量子效率可以大于1的一种新型多有源区隧道再生应变量子阱垂直腔面发射半导体激光器(VCSELs)结构,可得到阀值电流更小、输出功率更大的器件。
A novel multiple-active-region tunneling regenerated strained-quantum-well vertical-cavity surface-emitting laser(VCSEL),whose differential quantum efficiency is larger than unity and whose performance is expected to be improved,especially the threshold current is expected to be reduced and the output power is expected to be increased,was designed.
通过对一种微分量子效率可以大于 1的新型多有源区隧道再生应变量子阱垂直腔面发射半导体激光器 (VCSELs)结构 ,以及由此设计出的阈值电流更小、输出功率更大的器件与普通结构在反射率及注入电流都相同的条件下输出功率大小的比较及阈值电流密度大小的比较 ,从而在理论上证实了这种VCSELs新型结构的优势。
Thermal relaxation accumulating process and thermal homeostasis distribution of tunnel regeneration semiconductor laser with two active regions are simulated by using the finite element method at different current pulse work with constant temperature boundary conditions.
利用有限元方法模拟计算得到了两有源区隧道再生半导体激光器在不同占空比下工作时的热弛豫积累过程。
Gth is the active region gain required to offset losses in the regions exterior to the active region.
Gth是为了补偿在有源区以外的区域中的损失所要求的有源区增益。
Theoretical design and analysis of strain compensated quantum well
980nm激光器有源区的设计与分析
This area includes information related to human resources.
此区域包含有关人力资源的信息。
Territorial possessions or property.
地区性拥有的资源或财产
The water supply is adequate for many purposes and for many regions.
水源对许多目的和许多地区都有用。
ON THE THEORY OF CATHAYSIAN FLORA IN RELATION TO THE ORIGIN OF THE FLOWERING PLANTS
华夏植物区系理论与有花植物的起源
The Mountain Area Water Resources Condition of Guangxi and Valid Exploitation Research;
广西山区水资源状况与有效利用研究
Research the Legal System of State-owned Forest Resources Management;
国有林区森林资源管理法律制度研究
Investigation on Human Resource of the State-Owned Forestry Area in Heilongjiang Province;
黑龙江省国有林区人力资源情况调查
Effective amalgamation of port logistics resources in Yangtze River Delta;
长三角地区港口物流资源的有效融合
Research on the Ownership Systems over the Key State-Owned Forest Resource;
重点国有林区森林资源产权制度研究
Study on Human Resources Management of Forestry Industry Corporation in State-Owned Forestry Region;
国有林区森工企业人力资源管理思考
You have entered an invalid source range for your PivotTable. Enter a valid range in the Ranges box and then choose Add.
输入的源区域无效，请在“区域”框内输入一有效区域后，再选“添加”。
Furthermore, Yushan lower uplift has an advantage of two sets of source rock, and may be the best exploration target.
渔山低隆起地区具有双源供油气的优势，是最有利的油气勘探地区。
a spatially constricted by concentrated source (especially of radiation or pollution).
占据很小的区域并具有集中输出的源，尤指污染或辐射的源。
It verified from correlation of gas soure that they are of affinity between oil-forming gas and permian oil source rock here.
气源对比证实,该区油型气与二叠系源岩具有亲缘性。
2D numerical study on the effect of conductor between the transmitter and survey area in CSEM exploration
源和勘探区间导电体对有源电磁勘探影响的2D数值模拟研究(英文)
Influence of MT With Source and without Source in Long and Big Tunnels with Basalt Buried
有源无源大地电磁在玄武岩覆盖区长大隧道发挥的作用