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1.发明授权Broadband passive optical limiter using a photorefractive crystal, cylindrical lens and filter to protect against substantially all pulsewidths and continuous wave lasers 失效宽带无源光限制器，使用光折射晶体，柱面透镜和滤光片，以保护基本上所有脉冲宽度和连续波激光
公开(公告)号：US5449904A
公开(公告)日：1995-09-12
申请号：US351202
申请日：1994-11-30
申请人： Mary J. Miller , Gregory J. Salamo , William W. Clark, III , Gary L. Wood , Edward J. Sharp , Brian D. Monson
发明人： Mary J. Miller , Gregory J. Salamo , William W. Clark, III , Gary L. Wood , Edward J. Sharp , Brian D. Monson
CPC分类号： G02F1/0338
摘要： A passive broadband sensor protection and enhancement system and technique.ncident light is focused with a cylindrical lens on the optical axis into an intense light strip onto the input face of a photorefractive crystal on the optical axis. The crystal includes optional anti-reflection coatings proximate to the input and output face. A broadband high reflection coating is proximate to the input face for reflection of all radiation from approximately 0.68 to at least out to 1.5 micrometers wavelength. Light exiting from the output face of the crystal results from a photorefractive process that includes a transmitted beam and beam fan. The beam fan is fanned out of the optical path in a direction determined by the c-axis, dominant electro-optic coefficient, and charge carriers participating in the photorefractive process. The transmitted beam contains only incoherent radiation as input to a sensitive detector resulting in broadband multiline protection from the visible spectrum for substantially all pulsewidths and cw lasers, with enhanced time response and interaction length.
摘要翻译： 无源宽带传感器保护和增强系统和技术。 入射光与光轴上的柱面透镜聚焦成光轴上的光折射晶体的输入面上的强光条。 该晶体包括靠近输入和输出面的可选防反射涂层。 宽带高反射涂层靠近输入面，用于将所有辐射的反射从大约0.68至至少至1.5微米的波长。 从晶体的输出面射出的光由包含透射光束和光束扇的光折变过程产生。 光束风扇在由c轴，主要电光系数和参与光折射过程的电荷载体确定的方向上从光路中扇出。 发射光束仅包含非相干辐射作为敏感检测器的输入，导致基本上所有脉冲宽度和cw激光器的可见光谱的宽带多线保护，具有增强的时间响应和相互作用长度。
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公开(公告)号：US5495101A
公开(公告)日：1996-02-27
申请号：US352643
申请日：1994-12-09
CPC分类号： A61F9/023 , G02F1/3511
摘要： A passive broadband sensor protection and enhancement system and technique.ncident light is focused with a cylindrical lens on the optical axis into an intense light strip onto the input face of a photorefractive crystal which may include optional anti-reflection coatings on the input and output face. A broadband high reflection coating proximate to the input face reflects all radiation from approximately 0.68 out to at least 1.5 micrometers wavelength and light exiting includes a transmitted beam and beam fan. A weak holographic grating is used to seed the beam fan, such that is fanned out of the optical path in a direction determined by the c-axis, dominant electro-optic coefficient, and charge carriers participating in the photorefractive process. The transmitted beam contains only incoherent radiation as input to a sensitive detector resulting in broadband multiline protection from the visible spectrum for substantially all pulsewidths and cw lasers, with enhanced time response and interaction length.
摘要翻译： 无源宽带传感器保护和增强系统和技术。 入射光与光轴上的柱面透镜聚焦成光折射晶体的输入面上的强光条，其可以在输入和输出面上包括可选的抗反射涂层。 靠近输入面的宽带高反射涂层将所有的辐射反射到大约0.68到至少1.5微米的波长，出射的光包括透射光束和光束扇。 弱光全息光栅用于对光束风扇进行接种，从而在由c轴，显性电光系数和参与光折变过程的电荷载体确定的方向上扇出光路。 发射光束仅包含非相干辐射作为敏感检测器的输入，导致基本上所有脉冲宽度和cw激光器的可见光谱的宽带多线保护，具有增强的时间响应和相互作用长度。
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公开(公告)号：US5073705A
公开(公告)日：1991-12-17
申请号：US505615
申请日：1990-04-06
IPC分类号： G02F1/03
CPC分类号： G02F1/0338
摘要： This is a new use for known photorefractive crystals. If input radiation taining both non-coherent and multiple-line coherent radiation is directed into such a crystal from a predetermined range of directions with respect to the C axis of the crystal, rainbow scattering of the coherent radiation occurs, whereas normal scattering of the non-coherent radiation occurs. A detector toward which input radiation is directed through the crystal is thus protected from high-power, multiple-line coherent radiation such as that provided by a threat laser.
摘要翻译： 这是已知光折射晶体的新用途。 如果包含非相干和多线相干辐射的输入辐射相对于晶体的C轴从预定的方向范围引导到这种晶体中，则发生相干辐射的彩虹散射，而非非相干和多线相干辐射的正常散射 相干辐射发生。 因此，输入辐射被引导通过晶体的检测器被保护免受例如由威胁激光器提供的大功率多线相干辐射。
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4.发明申请公开(公告)号：US20190120712A1
公开(公告)日：2019-04-25
申请号：US16161260
申请日：2018-10-16
摘要： GaN/Al0.20Ga0.80N/GaN heterostructures Micro-Hall effect sensors providing simultaneous current and temperature detection over at least a best performance temperature range of −183° C. and 252° C.
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公开(公告)号：US11137310B2
公开(公告)日：2021-10-05
申请号：US16161260
申请日：2018-10-16
摘要： GaN/Al0.20Ga0.80N/GaN heterostructures Micro-Hall effect sensors providing simultaneous current and temperature detection over at least a best performance temperature range of −183° C. and 252° C.
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公开(公告)号：US5317442A
公开(公告)日：1994-05-31
申请号：US98999
申请日：1993-07-29
IPC分类号： H04B10/10 , H04B10/105 , H04B10/00
CPC分类号： H04B10/1121 , H04B10/118
摘要： A universal IFF technique and system utilizes a real-time communication l established between both parties allowing the approximate immediate transferral of digital information with positive direction and identification of both parties achieved. A pump laser emits a first signal at a first position and a remote laser beacon emits a second signal at a second position, both signals at nominally the same wavelength. A MPPCM receives the first signal which establishes a beam fan. The MPPCM and first signal scans about a region of interest to intercept the second signal. The second signal provides a second input signal into the MPPCM so that a two-way phase conjugation signal builds up and lock-on is established.
摘要翻译： 通用的IFF技术和系统利用双方建立的实时通信链路，允许数字信息的大致即时传输具有正向和双方的识别。 泵激光器在第一位置发射第一信号，并且远程激光信标在第二位置发射第二信号，两个信号名义上相同的波长。 MPPCM接收建立梁扇的第一信号。 MPPCM和第一信号扫描关心的区域以截取第二信号。 第二信号向MPPCM提供第二输入信号，从而建立双向相位共轭信号并建立锁定。
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