查询词典 lasers

In order to establish the boundary conditions to the equations, we have taken into consideration the fact that a constructive interference at the coupler assures that the laser radiations from both constituent lasers be directed to the coupler output port to which a reflection mirror, defining both laser cavities and executing the mutual injection between two lasers, is attached.

考虑到设置在光纤耦合器的一个输出端口的公共反射镜还担负着实施两个激光器间的相互注入的功能，利用光纤耦合器的变换矩阵以及光场相干叠加的要求，可以确定激光器速率方程组满足的边界条件。

In making stacks with such laser chips we found that the array output power is lower than the sum of the output power of individual lasers and the reduced ratio increases with the increase of the number of individual lasers.

用它们的芯片研制了堆积阵列激光器。在研制中发现，阵列的输出功率小于各单元器件输出功率之和；而减小的比率随着单元数目增加而增加。

Because the spatial hole burning is much small in MQW lasers, the influence of this gain coupling effect on the threshold gain and frequency shift in MQW lasers will be obliviously.

标 签 半导体激光器空间烧孔分布反馈增益耦合 semiconductor lasers spoilal hole burning distributed feedbeak gain coupling

One of key problems is lasers cooling in researching hi gh power semiconductor diode lasers.

大功率半导体激光器研制的关键问题之一就是散热冷却技术。

In this paper, some theoretical and experimently results of semiconductor lasers are derived. The main works of this paper are: [1] The noise characters of semiconductor lasers within the coherent collapse region has been analyzed.

近年来，半导体激光器的理论和实验研究都非常活跃，在各方面都取得了很大进展，我们结合本实验室的具体条件，对半导体激光器进行了理论和实验两方面的研究工作。

M and 1. 12 ～1. 26μm, respectively. An equipment has been designed to make the three lasers operate. The equipment can be used in titanium sapphire and chromium－doped forsterite lasers for tuning over a larger range.

并设计了一个能利用同一装置方便地实现三种激光器的调谐运转；这一装置可以类似地应用于钛宝石激光器和掺铬镁橄榄石激光器中，实现范围更宽的可调谐激光输出。

PCSS-driven Pockels cells: the PCSS delivers a sub-nanosecond pulse to an electro-optical crystal which controls the lasing efficiency in laser cavities ranging from microchip microjoule lasers to table-top multiJoule lasers.

PCSS 驱动的 Pockels 细胞： PCSS 递送子十亿分之一秒脉膊给一个电镀物品-光学的在激光中控制激光法效率的水晶洞排范围从微集成电路 microjoule 激光到桌子-顶端的多焦耳激光。

The laser diode system is composed of three external cavity diode lasers and four injection diode lasers and a tapered amplifier. Four laser beams as 40K and 87Rb cooling and repump lights are obtained by using acoustic optic modulators to offset the frequencies from the three ECDL lasers. Four light beams with the different frequencies are injected into four slave lasers for injection locking, then Rb cooling light, K cooling light and K repump light are injected into a semiconductor tapered amplifier in a master oscillator-power configuration.

采用三台外腔光栅反馈半导体激光器、四台注入锁定激光器和一台半导体激光放大器组成激光系统，三台外腔光栅反馈半导体激光器通过声光调制器产生四束光，分别作为40K和87Rb原子的冷却光和再抽运光，四束不同频率成份的激光分别注入锁定四台从激光器，然后Rb cooling光、K cooling光和K repump光再同时注入半导体激光放大器进行放大。

Orthogonally linearly-polarized lasers and its new applications in precision measurement are presented, including: 1 orthogonally linearly-polarized lasers, 2 principle for laser nanometer ruler (displacement sensor based on the competition between two polarized lights of the frequency splitting lasers), 3 principle for phase retardation measurement using frequency splitting technology, 4 principle for phase retardation measurement based on laser feedback effects.

介绍了正交线偏振激光器及其在精密测量中的新应用，包括：1 正交偏振双频激光器，2 纳米激光测尺(基于频率分裂的激光器两偏振光竞争位移传感器)测量原理，3 直接利用波片形成频率分裂的波片位相延迟测量原理，4 激光回馈波片位相延迟测量原理。

In order to obtain more exact analytical solution to study the output characteristics of double-clad fiber lasers,according to the continuous-wave rate equations of fiber lasers,using typical parameters of double-clad fiber lasers,the contribution of the re-emission effect arising from the interaction between the upper-level atoms and pump light was estimated.Taking into account the predominant part of the re-emission to improve the accuracy of the integration approximated rate equations,the integration of the product of the loss and radiation should be found and explicit analytical expressions for the output of the DCFLs and gradient efficiency of the pump radiation,were deduced,and certain issues of concern were discussed.

为了求得用于研究双包层光纤激光器输出特性的更为精确的解析解，根据稳态速率方程组，针对典型的双包层光纤激光器参量，在估计了上能级粒子再发射项和抽运光产生的影响后，采用保留再发射贡献主导部分的办法以提高可积分近似方程的精确度，明确地提出了要获得光纤激光器输出功率的解析表达式的关键在于求出损耗系数与光场乘积的积分值，简洁地求得了输出功率和抽运光斜线效率的显函数解析表达式，并对其相关问题进行了讨论，以915nm，920nm和975nm的抽运光为例，当输出激光为1090nm时，得出975nm抽运光产生的斜率效率最高并可高达约87%。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。