littrow meaning in Chinese

利特罗

The littrow grating tuning method is employed for the first time in double cladding fiber lasers . by tuning the angle of the grating , we have achieved a tuning range of more than 40nm . 6
（ 5 ）首次将littrow光栅调谐技术应用到掺双包层光纤激光器中，实现了可调谐包层泵浦光纤激光器，波长可调谐范围大于40nm 。
For the first time , three types of sine structures for wavelength linear scale in grating spectrum instruments are described systematically . the tuning structures for wavelength linear scale in both littrow and littman set - up external - cavity laser diodes are designed
( 3 )首次系统地分析了光栅光谱仪器中的三类正弦机构，分别设计了可实现波长线性标度的littrow和littman外腔半导体激光器调谐机构。
This thesis describes some work on improving the performance of lasers , which i have carried out during the past three years . follows are the main points : 1 . both littrow and littman set - up of 800nm - band external - cavity diode laser systems are studied
本论文本着追踪发展、面向应用、有所创新的原则，在改善激光器性能方面做了一些工作，主要包括：（ 1 ）对800nm波段littrow和littman结构的弱耦合可调谐外腔半导体激光器进行了实验研究。