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公开(公告)号:US3875531A
公开(公告)日:1975-04-01
申请号:US41631973
申请日:1973-11-15
Applicant: UNITED AIRCRAFT CORP
Inventor: BUCZEK CARL J , CHENAUSKY PETER P , FRIEBERG ROBERT J , WAYNE ROBERT J
Abstract: A compact, integrated, cross magnetic field, transverse electrid field, closed cycle, convective gas laser system is disclosed. A highly refined laser channel provides a stable electric discharge in the optical cavity with thin metal fins aligned in the flow direction; also the channel is effectively an integral heat exchanger which cools the working medium passing therethrough. Lightweight permanent magnets positioned about the channel align the discharge in the optical cavity. A flexible vane blower circulates the working medium within the vacuum envelope of the system. A compartmentated duct of dielectric material having rectangular geometry matched to the contours of the laser channel and the blower comprises the vacuum envelope for the system. The gas feed means, gas purge means and means for cooling the laser channel, which are all necessary to sustain operation of the cycle, are described. The parameters for an integrated system which provides a two hundred watt cw output beam of laser radiation are disclosed. The invention herein described was made in the course of or under a contract or subcontract thereunder with the Department of the Navy.
Abstract translation: 公开了紧凑,集成的交叉磁场,横向电场,封闭循环,对流气体激光系统。 高度精细的激光通道在光腔中提供稳定的放电,其中金属薄片沿流动方向排列; 通道也可以有效地冷却通过其中的工作介质的整体式热交换器。 围绕通道定位的轻量级永磁体使光腔中的放电对准。 柔性叶片鼓风机将工作介质循环在系统的真空外壳内。 具有与激光通道和鼓风机的轮廓匹配的矩形几何形状的分隔的介质材料管道包括用于系统的真空封套。 描述气体供给装置,气体净化装置和用于冷却激光通道的装置,这些都是维持循环操作所必需的。 公开了一种提供激光辐射二百瓦特输出光束的集成系统的参数。 本文所述的发明是在与海军部签订合同或分包合同的过程中进行的。
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2.
公开(公告)号:US3697151A
公开(公告)日:1972-10-10
申请号:US3697151D
申请日:1970-08-14
Applicant: UNITED AIRCRAFT CORP
Inventor: SKOLNICK MICHAEL L , BUCZEK CARL J
CPC classification number: G02F1/09
Abstract: A semiconductive optical window of the type exhibiting a Faraday rotation in the presence of a magnetic field is cryogenically cooled in a dewar having flexure mounts for the element. The flexure mounts comprise metallic supports having a suitable aspect ratio (length to thickness) to guarantee adequate flexure, the supports being bonded to the element. The flexure mounts are disposed on opposite faces of the element and circumscribe a clear optical path through the element near the periphery of the element; this provides a fluid seal between the clear optical path through the element and the extreme periphery of the element, whereby the extreme periphery is immersed in cryogenic fluid. The element is disposed in an evacuated chamber for insulating purposes.
Abstract translation: 在存在磁场的情况下呈现法拉第旋转的半导体光学窗口在具有用于元件的挠曲安装件的杜瓦瓶中低温冷却。 弯曲支架包括具有合适的纵横比(长度与厚度)的金属支撑件,以确保足够的挠曲,支撑件与元件结合。 弯曲安装件设置在元件的相对表面上,并且围绕元件的周边附近的穿过元件的透明光路; 这提供了通过元件的清晰光路和元件的最外围之间的流体密封,由此将极限周边浸入低温流体中。 该元件设置在用于绝缘目的的抽真空室中。
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公开(公告)号:US3700309A
公开(公告)日:1972-10-24
申请号:US3700309D
申请日:1971-03-15
Applicant: UNITED AIRCRAFT CORP
Inventor: SKOLNICK MICHAEL L , BUCZEK CARL J
CPC classification number: H01S3/0064 , H01S3/083
Abstract: A nonresonant interferometric optical isolator is provided with an element having an index of refraction anisotropy. The isolator is a device having two beam paths and any input beam which passes through is split into two individual component beams, with each component being transmitted along a separate path before interfering with the other component and exiting from the isolator. The anisotropy causes the effective optical length through the isolator to be responsive to the direction of travel of an optical beam through the element so that an optical beam passing through the anisotropic element in a forward direction experiences an optical length which is different from the optical length the beam would experience traveling in a reverse direction. The two beam paths of the isolator have effective optical lengths in the reverse direction which differ from each other by half a wavelength and the components of an optical beam transmitted through the isolator in the reverse direction undergo destructive interference and leave the isolator along a path which is different from the input beam direction. Therefore, an input beam of optical energy is readily transmitted through the isolator in the intended direction, but any feedback beam passes through the isolator in a reverse direction and exits the isolator along a path which is different from the input beam direction.
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公开(公告)号:US3646469A
公开(公告)日:1972-02-29
申请号:US3646469D
申请日:1970-03-20
Applicant: UNITED AIRCRAFT CORP
Inventor: BUCZEK CARL J , SKOLNICK MICHAEL L
CPC classification number: H01S3/235 , H01S3/083 , H01S3/1398
Abstract: A unidirectional travelling wave regenerative amplifier includes gain medium disposed in a travelling wave ring interferometer, the unidirectional travelling wave permitting coupling of a driving oscillator thereto without the amplifier feeding back to the oscillator. Because the amplifier is operated near saturation intensity, the output characteristic (with respect to frequency) is broadened; therefore, the output power and phase stability are relatively insensitive to variations in physical resonance. A hill climbing servo maintains the cavity of the ring interferometer at a length which relates precisely to the output frequency of the driving oscillator.
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公开(公告)号:US3646468A
公开(公告)日:1972-02-29
申请号:US3646468D
申请日:1970-03-20
Applicant: UNITED AIRCRAFT CORP
Inventor: BUCZEK CARL J , SKOLNICK MICHAEL L , FREIBERG ROBERT J
CPC classification number: H01S3/1109 , H01S3/083 , H01S3/10092
Abstract: A high-power laser oscillator is overcoupled, thereby to be oscillating at below maximum output power, and laser radiation injected into the high-power oscillator from a low-power, controlled driving oscillator drives the total radiation intensity within the high-power oscillator to an output power approaching its maximum value. This permits the high-power oscillator output to be sharply maximized when it is adjusted so that its resonant frequency is close to that of the driving oscillator, thereby permitting closed loop servocontrol of the high-power oscillator cavity length in response to maximum power output to cause the cavity length to match the transition frequency of the driving oscillator closely enough for stable phase locking of the two oscillators. In one embodiment, a ring interferometer high-power oscillator is operated in one direction only thereby preventing feedback from this oscillator to the driving (low-power reference) oscillator. In another embodiment, an optical isolator is used between the high low-power reference oscillator and the power oscillator.
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