Because the working media of laser is gas , and the pressure difference between the inner apparatus and environment of laser is large , so the window of output laser beam must be sealed 由于其激光工作介质是气体，而且激光腔内的压力与外界环境压强相差很大，激光束的输出窗口必须密封。
To obtain the correct name of the header file , examine the contents of the output window or the output window section of the build log buildlog . htm in the intermediate files directory 若要获取此头文件的正确名称，请检查“输出窗口”或生成日志的“输出窗口”部分（中间文件目录中的buildlog . htm ）中的内容。
And it should be linear polarization in s direction by analyzing the relations between the reflection , absorption loss of optical thin film at oblique incidence and the polarization state , and at this time the brewster window made of very low - absorption material can be used 通过对斜入射高反射镜反射率、吸收损耗与光束偏振特性间的关系进行分析，表明谐振腔内的本征振荡最好应为s方向的线偏振光，这样光束输出窗口还可采用布儒斯特窗。
So the conventional solid windows have been becoming the threshold of the laser energy ' s promotion and the optical quality ' s improvements . to solve the above - mentioned problem of hel ' s output solid windows the concept of aerodynamic windows ( abbr . adw ) is proposed according as the property of gas , i . e 由于气体介质具有对电磁辐射选择吸收的特性，而且其击穿功率阈值也特别高，因此为了解决上述高能激光器固体输出窗口的“瓶颈”问题，根据气体介质的这一特性，提出了气体动力学输出窗口(简称为气动窗口， adw )的解决方案。
Because of the intrinsic fractional absorption of the laser energy with the conventional solid output windows for high energy lasers ( hel ) , the optical quality will be degraded , or the overall hel system cannot run at all when the laser energy are far higher , or the system runs longer time 然而，由于高能激光器传统的固体输出窗口具有不可避免的部分吸收作用，因此，当输出激光功率很高，或激光器长时间工作时，固体输出窗口就会产生热畸变、甚至炸裂或被击穿，从而影响输出激光的光束质量或使高能激光器根本无法工作。
The choice of laser output window height is relation to many factors , such as pressure loading , thermal loading , yield stress , influence on wavefront , failure by fatigue . spherical windows can endure higher laser intensity . however , it brings some phaseshifts , which connect with laser windows parameters 激光器输出窗口厚度的选取与压力载荷、热载荷、材料极限强度、厚度对波前的影响、材料疲劳等多种因素有关，由于球壳窗口能承受较高的功率密度，但窗口本身带来相移，该相移大小与窗口参数有关，根据位相均方根值选择球壳窗口参数。
