公开(公告)号：US3921100A

公开(公告)日：1975-11-18

申请号：US50879174

申请日：1974-09-23

Applicant: UNITED TECHNOLOGIES CORP

Inventor： OLINGER JR JOHN B ,  WAHL ROGER L

IPC: H01S3/034 ,  H01S3/0953 ,  H01S3/02 ,  H01S3/08 ,  H01S3/22

CPC classification number: H01S3/0343 ,  H01S3/0953

Abstract: A gas dynamic laser is shown wherein gases containing constituents necessary to obtain a lasing action are passed through a nozzle array and directed into a lasing cavity and through a diffuser to an exit. An opening is located on each side of said lasing cavity with a shutter box outside of said cavity having a shutter door for opening or closing said opening. A mirror box is located behind each shutter box and contains a mirror. These mirros are aligned with the openings in the lasing cavity with each door positioned between an opening and a mirror. Another outlet opening is positioned downstream of the first opening which provides an outlet opening for a laser beam. A shutter box is located around this opening and also houses a shutter door for opening and closing said opening. The mirror box which extends behind this shutter box includes opening means for permitting the output beam to pass through an aerodynamic window to atmosphere. Actuating means are provided for rapidly opening and closing said shutter doors. Bearing means including recirculating balls are located on the top and bottom of each shutter door to rise in tracks at an angle to the sealing surface on the laser device. Vacuum means are provided to reduce the pressure in the shutter box and mirror box independently of the pressure in the lasing cavity.

Abstract translation: 示出了气体动态激光器，其中包含获得激光作用所必需的成分的气体通过喷嘴阵列并且被引导到激光腔并且通过扩散器进入出口。 开口位于所述激光腔的每一侧上，在所述空腔外部具有用于打开或关闭所述开口的快门的快门盒。 每个快门盒后面都有一个镜子盒，并包含一个镜子。 这些反射镜与激光腔中的开口对准，每个门位于开口和反射镜之间。 另一个出口开口位于第一开口的下游，其提供用于激光束的出口。 一个快门盒位于这个开口周围，并且还设有一个用于打开和关闭所述开口的快门门。 在该快门盒后面延伸的镜盒包括用于允许输出光束通过空气动力学视窗到大气的打开装置。 提供了用于快速打开和关闭所述活门的致动装置。 包括循环球的轴承装置位于每个闸门的顶部和底部，以与激光装置上的密封表面成一定角度上升。 提供真空装置以独立于激光腔中的压力来减小活门盒和镜盒中的压力。