查询词典 semiconductor

By utilizing the cross gain modulation effect and the period 1 oscillation harmonic frequency locked in an optically injected semiconductor laser , we can extract the wavelength conversional individual channel optical clock from the optical time division multiplexing OTDM signal .

光注入半导体激光器会产生非线性单周期振荡特性，利用交叉增益调制效应及对单周期振荡的微波锁频效应，可从光时分复用信号中提取出波长转换的分路光时钟。

By utilizing the cross-gain modulation effect and the period-one oscillation harmonic frequency-locked in an optically injected semiconductor laser, we can extract the wavelength conversional individual channel optical clock from the optical-time-division-multiplexing signal. In a FP-LD, we numerically simulate the extraction of 20 GHz optical clock at 1550 nm from the 2×20 Gb/s OTDM signal at 1555 nm, and experimentally obtain the -105 dBc/Hz phase noise frequency division clock of 12.36 GHz to 6.18 GHz with simultaneous wavelength conversion from 1550.24 nm to 1545.91 nm.

采用一个FP半导体激光器作为全光分路时钟提取及波长转换器，数值模拟实现了从波长为1555 nm、速率为2×20 Gb/s的光时分复用信号中提取出波长转换为1550 nm、重复频率为20 GHz的分路光时钟，实验完成了从波长为1550.24 nm、重复频率为12.36 GHz光脉冲信号中提取出相位噪声为-105 dBc/Hz的波长为1545.91 nm、重复频率6.18 GHz的分频光时钟。

Heat radiation is the crux of all key technologies in high-power semiconductor lasers.

摘要在半导体大功率激光器的各种关键技术中，散热问题的解决是一个极其关键的技术。

In this thesis, the AlN thin films were deposited on SiO2/Si and GaN/Sapphire substrates respectively for layered structure SAW devices by Helicon sputtering system. Laser ultrasound system was used to measure the acoustic wave velocity of AlN/SiO2/Si layered structure. Frequency response and insertion loss were measured by an HP8510C vector network analyzer to analysis insertion loss, sidelobe and quality factor. The results showed the possibility of incorporating thin films SAW devices with other semiconductor devices.

本研究使用回旋溅镀系统分别在SiO2/Si、GaN/Sapphire两种基板上沉积AlN并制作层状表面声波元件，并利用雷射超音波系统量测AlN/SiO2/Si结构之表面波速及机电耦合系数，再利用网路分析仪量测其频率响应，分析其插入耗损、 sidelobe、品质因子Q，以比较不同基材所制作之层状表面声波元件之特性，此研究成果初步验证AlN层状表面声波元件与半导体元件整合之可行性。

It will promote the achievement of high beam quality, high output power semiconductor laser.

利用束传播方法对锥形激光器进行了理论分析。

The company has a broad background of international cooperation is a major international high-power semiconductor laser supplier close partners.

公司具有广泛的国际合作背景，是国际上主要高功率半导体激光器供应商的密切合作伙伴。

This dissertation is devoted to a very important equation system among differential equation systems------quasi-linear equation system, as is a important topic of equation system(especially when discussed shock wave solution), Often appear in such research fields as Hydrokinetics, the semiconductor establishes in physical theory ,Chemical reaction theory , project, Biology , Communication and Ecology etc.

中文摘要：本论文主要研究了微分方程中的一类很重要的方程组——拟线性方程组，它是微分方程的一个重要的课题，常常出现在流体动力学、半导体设置的物理理论、化学反应理论、工程、生物、通信和生态等研究领域中。

In the output quality is concerned, the six new products by Fuji Xerox original VCSEL semiconductor laser technology in order to achieve a true 2400x2400dpi hyperfine output resolution.

在输出品质方面，六款新品均采用了富士施乐独创的VCSEL半导体激光技术，达到了真正2400x2400dpi的超精细输出分辨率。

According to China\'s industry ministry, as of this month about 30% of the nation\'s aluminum production capacity is idle, as is 20% of cement and plate-glass capacity and 70% of semiconductor production.

据中国工业和信息化部的数据，截至本月，中国约有30%的铝材、20%的水泥和平板玻璃，以及70%的半导体产能是闲置的。

Has been rated: Illuminating Engineering Society of China photovoltaic lighting, vice chairman; Chinas semiconductor lighting lighting Electric Association Committee; the World Bank Group of the "light of Africa" project members; countries "LED street lighting" AP unit standards.

现已评为：中国照明学会太阳能光伏照明委员会副主任委员；中国照明电器协会半导体照明委员会委员；世界银行集团的"照亮非洲"项目的成员；国家"LED路灯照明"标准参编单位。

There had been a moment during the breakfast meeting, though, after the backslapping and the small talk and when all of us were seated, with Vice President Cheney eating his eggs Benedict impassively and Karl Rove at the far end of the table discreetly checking his BlackBerry, that I witnessed a different side of the man.

那次早餐会期间，在表示过关心和寒暄以后，我们所有人坐了下来，我注意观察了一下，副总统切尼面无表情地吃着班尼迪克蛋（Eggs benedict，源自美国，以英式松饼、火腿、水煮蛋以及荷兰酱组合而成），卡尔。罗夫在餐桌的远端谨慎地经常查看他的黑莓手机，我目睹了他所不为人知的一面。

Talk Undelete failed; someone else may have undeleted the page first.

Talk 无法删除选定的页面或图像（它可能已经被其他人删除了）。