提出采用两个光纤耦合器构成具有复合环的非线性放大环形镜。
A nonlinear amplifying compound loop mirror (NACLM) constructed by two fiber couplers is presented and analyzed.
在理论上分析了利用非线性光学环形镜作为等效可饱和吸收体压缩脉冲进行锁模的物理机制。
The advantages of using NOLM as saturable absorber to compress pulse in mode-locked fiber lasers are analyzed theoretically.
实验表明，采用非线性放大复合环形镜构成复合腔光纤激光器，有可能获得高重复频率的锁模脉冲。
It is suggested that using a NACLM as a passive mode locking element, generation of ultrashort pulses of very high repetition rate is promising with a fiber laser.
报道一种新型全光纤调q掺铒光纤激光器，在其结构中采用带有光纤光栅的光纤环形镜作为调q装置。
A novel all optic fibers Q-modulated erbium-doped optic fibers laser is reported. The optic fibers ring mirror with optic fibers grating is used as Q-modulation device in its configuration.
使用光纤环形镜(FLM)作为增益平坦滤波器进行L波段掺铒光纤放大器的增益平坦化实验，实现了高增益值的平坦输出。
Experiments demonstrate that L-band EDFA will achieve high flat gain by employing a gain flat filter based on fiber loop mirror (FLM).
从理论上分析了利用光纤环形镜（FLM）中的偏振耦合效应作为滤波器，对掺铒光纤放大器（EDFA）实现增益平坦化的方法。
The method of erbium-doped fiber amplifier(EDFA) gain flattening using a fiber loop mirror(FLM) acting as a wavelength filter was analyzed in theory.
科学家把由哈勃望远镜在一段日子里所获取的极光紫外线与这环形星球可见光结合起来。
Scientists combined ultraviolet images of the auroras, taken by Hubble over a period of days, with visible-light images of the ringed planet.
这是月球南极的沙克尔顿环形山，而变换器是将太阳光投射到绿洲的定日镜。
This is the Shackleton crater at the lunar South Pole and TransFormers are the heliostats projecting sunlight onto the oasis.
本文叙述在电场作用下，自泵浦位相共轭镜耦合到环形染料激光器时的波长自扫描特性和共轭反射率随波长变化的特性。
This paper describes the characteristics of wavelength scanning of a ring dye laser coupled with a SPPCM and the reflectivity under an external field.
本文讨论了建立四反射镜环形反馈系统的有关问题，探讨了利用环形反馈系统控制图象对比度变化的原理。
This paper studies the establishment of four-mirror circle feedback system and the principle of controlling contrast changes of the image pattern by this system.
借助小型望远镜可以看清月球上的环形山。
Lunar craters can be plainly seen with the aid of a small telescope.
详细讨论了热效应对谐振腔基本特性的影响，给出了四镜环形腔的热不灵敏条件。
The thermal influences on its basic properties are discussed in detail. And the insensitive condition of the 4-mirror ring resonator to thermal thin lens is given.
提出了一种基于环形激光的深孔内膛检测系统，该系统主要由环形激光发生器、反射锥镜、CCD相机以及驱动装置等组成。
A detection system based on ring laser used for inner wall of deep hole is proposed. The system mainly consists of ring laser, reflecting prism, CCD camera and driving unit.
在扫描电子显微镜下可观察到四种金相组织：黑色芯相、白色芯相、灰色环形相和白色粘结相。
Under scanning electronic microscope, four kinds of metal structure may be observed including black core phase, white core phase, gray ring phase and white adhesion phase.
在扫描电子显微镜下可观察到四种金相组织：黑色芯相、白色芯相、灰色环形相和白色粘结相。
Under scanning electronic microscope, four kinds of metal structure may be observed including black core phase, white core phase, gray ring phase and white adhesion phase.
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