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- long external cavity 长外腔
- Phase modulation of the laser beam is obtained by EOM in the external cavity. 另外，文中还提出了一种基于双正弦调制技术的激光自混合干涉测距系统。
- Experimental Study on the Tunable External Cavity RCE Photo-detector[J]. 引用该论文 黄永清;刘凯;刘立义;李建新;任晓敏.
- The theory model of fiber Bragg grating external cavity semiconductor lasers (FBG-ECL) is studied. 摘要研究了光纤光栅外腔半导体激光器(FBG-ECL)的理论模型；
- In addition, ultra-narrow linewidth can be also realized by adopting DBR structure or external cavity structure. 此外，采用DBR结构或者外腔结构，也可以获得相当窄的线宽。
- Linewidth-narrowed,tunable spectrum can be obtained by external cavity feedback laser diode array(LDA). 外腔反馈的激光二极管阵列(LDA)可获得窄线宽、可调谐的光谱输出。
- The external cavity is made up of fast axis collimator, collimating optical system and diffraction grating. 外腔由快轴准直镜、准直光学系统和闪耀光栅组成。
- A novel tunable distributed Bragg reflection (DBR) laser using metal coated fiber Bragg grating as the external cavity was demonstrated. 报道一种新颖的波长可调谐光纤光栅外腔分布布拉格反射激光器。
- The theoretical results show that the spectral linewidth can be narrowed or broadened according to different external cavity parameters. 理论分析表明,根据不同的外腔参数,激光器的线宽能被压缩或展宽。
- Threshold conditions of a diode laser array(DLA)phase-locked in an external cavity have been obtained by using the eigenvalue of the coupled-mode matrix. 利用耦合矩阵本征值求得了外腔锁相二极管激光列阵的各阶超模所应满足的阈值条件 ,研究了激光器前端面剩余反射和外腔长度对各阶超模阈值增益的影响。
- In order to study the optical feedback characteristics at the dual frequency laser, a birefringent external cavity was studied throughboth theoretical analysis and experiments. 摘要为了研究双频激光器的光回馈特性，采用双折射外腔光回馈的方法，进行了理论分析和实验验证，取得了双频激光器中条纹倍频现象的数据。
- As a result, a theoretical model of fiber grating external cavity semiconductor lasers including the reflectivity distribution of fiber grating has been presented in this paper. 作为光纤光栅的一个应用范例，首次提出了考虑光纤光栅反射率分布的光纤光栅外腔半导体激光器的理论模型。
- The external cavity laser composes of a broad-area stripe semiconductor laser with fast-axis and slow axis beam collimation, and a VBG positioned off-axis. 宽条形半导体激光器的外腔结构主要包括激光器输出光束的快、慢轴准直光学透镜和离轴放置的体光栅。
- There was a long lag in forwarding mail to us. 转寄给我们的邮件晚了很久才拿到。
- You can keep my book as long as you like. 我的书你要借多久都随你的便。
- Single mode emission of an external cavity laser was obtained experimentally at 1 GHz modulation with side mode suppression ratio better than 40 dB, 3 dB dynamic line width about 0.1 nm, and 20 dB dynamic line width about 0.3 nm. 对所研制的光纤光栅外腔激光器进行了高频调制测量 ;得到了在 1GHz下的单模激光输出 ;边模抑制比在 40dB以上 ;3dB动态线宽为 0 .;1nm左右;2 0dB动态线宽为 0
- Fruit juices ferment if they are kept a long time. 果汁若是放置很久，就会发酵。
- The beggar spun a long yarn about his misfortunes. 那个乞丐编造了一大篇自己如何遭遇不幸的故事。
- In this dissertation, we further study the behaviors of quantum dot lasers. The topics include two types of anti-competition behaviors and the stability of quantum dot external cavity lasers. 摘要:我们在这个论文里进一步研究量子点雷射的行为，包括量子点元件里的两种反竞争效应，以及量子点外共振腔雷射的稳定性。
- How long will our food supplies hold out? 我们的储粮还能维持多久?
