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    HIGH EFFICIENCY COHERENT IMAGER
    2.
    发明申请
    HIGH EFFICIENCY COHERENT IMAGER 有权
    高效相似图像

    公开(公告)号：US20160036535A1

    公开(公告)日：2016-02-04

    申请号：US14811984

    申请日：2015-07-29

    Applicant: BAE Systems Information And Electronic Systems Integration Inc.

    Inventor： Philip R. Staver

    IPC: H04B10/64

    CPC classification number: G01J9/04

    Abstract: An extended field heterodyne detection apparatus comprises a local signal oscillator, a micro-lens array set in optical relation to the local signal oscillator to multiplex a beam from the local signal oscillator, a local oscillator injection lens in the optical path of the local oscillator and the micro-lens array, a semi-reflective beam splitter at the telecentric stop of the local oscillator injection lens to reflect the beam of the local oscillator in parallel to a signal beam passing through the semi-reflective beam splitter, an objective lens, with a stop, located at the semi-reflective beam splitter, and a focal plane array, situated to receive the source beam. The extended field heterodyne detection apparatus solves the problem of creating a local oscillator beam that is mode-matched for an incoming signal beam, for the eventual process of mixing both the signal beam and the local oscillator using a conventional, square-law detector.

    Abstract translation: 扩展场外差检测装置包括本地信号振荡器，与本地信号振荡器成光学关系的微透镜阵列，用于复用来自本地信号振荡器的光束，本地振荡器的光路中的本地振荡器注入透镜，以及 微透镜阵列，在本地振荡器注入透镜的远心停止处的半反射分束器，以平行于通过半反射分束器的信号光束反射本地振荡器的光束，物镜，具有 位于半反射分束器处的停止点，以及位于接收源光束的焦平面阵列。 扩展场外差检测装置解决了创建对于输入信号光束进行模式匹配的本地振荡器光束的问题，用于使用传统的平方律检测器来混合信号光束和本地振荡器的最终过程。

    Ultra-fast and stable method to change the divergence of a laser beam
    3.
    发明授权
    Ultra-fast and stable method to change the divergence of a laser beam 有权

    公开(公告)号：US11165213B2

    公开(公告)日：2021-11-02

    申请号：US16448878

    申请日：2019-06-21

    Applicant: BAE SYSTEMS Information and Electronic Systems Integration Inc.

    Inventor： Philip R. Staver

    IPC: H01S3/00 ,  G02B27/10 ,  G02B27/09

    Abstract: An optical system including a first lens element having an optical center, a second lens element having an optical center spaced apart from the first lens element and oriented such that a beam passing through the optical center of said first lens element will also pass straight the optical center of the second lens element, the beam defining an optical path; and
    at least one planar, optical slab configured to be movable between at least two positions, a first position wherein at least a portion of a planar surface of the optical slab is disposed between the first and second lens elements such that a beam transmitted therethrough also passes through the planar, optical slab and a second position wherein the planar, optical slab is fully outside of the optical path created by the first and second lens elements.

    METHOD TO VARY THE DIAMETER OF A LASER BEAM
    4.
    发明申请
    METHOD TO VARY THE DIAMETER OF A LASER BEAM 有权

    公开(公告)号：US20210278680A1

    公开(公告)日：2021-09-09

    申请号：US16808509

    申请日：2020-03-04

    Applicant: BAE SYSTEMS Information and Electronic Systems Integration Inc.

    Inventor： Philip R. Staver

    IPC: G02B27/09 ,  G02B9/60 ,  H01S3/00

    Abstract: Techniques, systems, architectures, and methods for modulating the focal spot and/or divergence of a laser beam comprising the use of a collimated light source, a lens assembly disposed within an optical path corresponding to light emanating from the collimated light source wherein the lens assembly comprises two pairs of cross cylinder lenses having equal and opposite focal powers oriented with their neutral axes positioned orthogonally to each other; and a focusing objective lens assembly disposed within the optical path following the lens assembly, wherein each of the two pairs of cross cylinder lenses are configured for rotation about an axis defined by the point at which light from the collimated light source impinges on each of them.

    High efficiency coherent imager
    6.
    发明授权
    High efficiency coherent imager 有权

    公开(公告)号：US09696212B2

    公开(公告)日：2017-07-04

    申请号：US14811984

    申请日：2015-07-29

    Applicant: BAE Systems Information And Electronic Systems Integration Inc.

    Inventor： Philip R. Staver

    IPC: H04B10/64 ,  G01J9/04

    CPC classification number: G01J9/04

    Abstract: An extended field heterodyne detection apparatus comprises a local signal oscillator, a micro-lens array set in optical relation to the local signal oscillator to multiplex a beam from the local signal oscillator, a local oscillator injection lens in the optical path of the local oscillator and the micro-lens array, a semi-reflective beam splitter at the telecentric stop of the local oscillator injection lens to reflect the beam of the local oscillator in parallel to a signal beam passing through the semi-reflective beam splitter, an objective lens, with a stop, located at the semi-reflective beam splitter, and a focal plane array, situated to receive the source beam. The extended field heterodyne detection apparatus solves the problem of creating a local oscillator beam that is mode-matched for an incoming signal beam, for the eventual process of mixing both the signal beam and the local oscillator using a conventional, square-law detector.

    Multi-band laser architecture
    7.
    发明授权
    Multi-band laser architecture 有权
    多频激光器架构

    公开(公告)号：US09407059B2

    公开(公告)日：2016-08-02

    申请号：US14629749

    申请日：2015-02-24

    Applicant: BAE Systems Information and Electronic Systems Integration Inc.

    Inventor： Leonard A. Pomeranz ,  Joseph M. Owen ,  Michael J. Shaw ,  David P. Kelly ,  Philip R. Staver ,  Peter A. Budni ,  John C. Wikman

    IPC: H01S3/11 ,  H01S5/00 ,  G02F1/39 ,  G02F1/35 ,  H01S3/094 ,  H01S3/00 ,  H01S3/02

    CPC classification number: H01S3/11 ,  G02F1/353 ,  G02F1/395 ,  H01S3/0092 ,  H01S3/025 ,  H01S3/094038 ,  H01S3/094053 ,  H01S5/0092

    Abstract: Techniques and architecture are disclosed for providing a laser system. In one specific example embodiment, the system includes a thulium-doped fiber laser coupled by silica glass fiber to a remote optical converter (ROC) including a Ho:YAG laser and, optionally, an optical parametric oscillator (OPO) utilizing in germanium phosphide (ZnGeP2; ZGP) or orientation-patterned gallium arsenide (OPGaAs). The fiber laser may emit a low-peak-power, continuous wave pump signal that pumps the Ho:YAG laser, which in turn emits a higher-peak-power, pulsed signal. When included, the OPO can be used to convert the resultant, pulsed signal to a longer wavelength (e.g., about 2-5 μm, or greater). In some cases, distributed architecture and reduced weight/bulk may be realized while eliminating the need to actively cool the ROC for operation, for example, over a broad temperature range (e.g., −55-125° C.). Also, methods of preparing high-peak-power, pulsed signals using such systems are disclosed.

    Abstract translation: 公开了用于提供激光系统的技术和架构。 在一个具体示例实施例中，该系统包括通过石英玻璃光纤耦合到包括Ho：YAG激光器的远程光学转换器（ROC）的ium掺杂光纤激光器，以及可选地使用磷化锗（OPO）的光学参量振荡器 ZnGeP2; ZGP）或取向图案化的砷化镓（OPGaAs）。 光纤激光器可以发射低峰值功率的连续波泵浦信号，该信号泵送Ho：YAG激光器，该激光器又发射更高峰值功率的脉冲信号。 当包括时，OPO可用于将所得到的脉冲信号转换为更长的波长（例如约2-5μm或更大）。 在一些情况下，可以实现分布式架构和减轻重量/体积，而不需要主动冷却ROC以进行操作，例如在宽的温度范围（例如-55-125℃）下。 此外，公开了使用这种系统制备高峰值功率脉冲信号的方法。

    MULTI-BAND LASER ARCHITECTURE
    8.
    发明申请
    MULTI-BAND LASER ARCHITECTURE 有权
    多层激光建筑

    公开(公告)号：US20150171590A1

    公开(公告)日：2015-06-18

    申请号：US14629749

    申请日：2015-02-24

    Applicant: BAE Systems Information and Electronic Systems Integration Inc.

    Inventor： Leonard A. Pomeranz ,  Joseph M. Owen ,  Michael J. Shaw ,  David P. Kelly ,  Philip R. Staver ,  Peter A. Budni ,  John C. Wikman

    IPC: H01S3/11

    CPC classification number: H01S3/11 ,  G02F1/353 ,  G02F1/395 ,  H01S3/0092 ,  H01S3/025 ,  H01S3/094038 ,  H01S3/094053 ,  H01S5/0092

    Abstract: Techniques and architecture are disclosed for providing a laser system. In one specific example embodiment, the system includes a thulium-doped fiber laser coupled by silica glass fiber to a remote optical converter (ROC) including a Ho:YAG laser and, optionally, an optical parametric oscillator (OPO) utilizing in germanium phosphide (ZnGeP2, ZGP) or orientation-patterned gallium arsenide (OPGaAs). The fiber laser may emit a low-peak-power, continuous wave pump signal that pumps the Ho:YAG laser, which in turn emits a higher-peak-power, pulsed signal. When included, the OPO can be used to convert the resultant, pulsed signal to a longer wavelength (e.g., about 2-5 μm, or greater). In some cases, distributed architecture and reduced weight/bulk may be realized while eliminating the need to actively cool the ROC for operation, for example, over a broad temperature range (e.g., −55-125° C.). Also, methods of preparing high-peak-power, pulsed signals using such systems are disclosed.

    Abstract translation: 公开了用于提供激光系统的技术和架构。 在一个具体示例实施例中，该系统包括通过石英玻璃光纤耦合到包括Ho：YAG激光器的远程光学转换器（ROC）的ium掺杂光纤激光器，以及可选地使用磷化锗（OPO）的光学参量振荡器 ZnGeP2，ZGP）或取向图案化的砷化镓（OPGaAs）。 光纤激光器可以发射低峰值功率的连续波泵浦信号，该信号泵送Ho：YAG激光器，该激光器又发射更高峰值功率的脉冲信号。 当包括时，OPO可用于将所得到的脉冲信号转换为更长的波长（例如约2-5μm或更大）。 在一些情况下，可以实现分布式架构和减轻重量/体积，而不需要主动冷却ROC以进行操作，例如在宽的温度范围（例如-55-125℃）下。 此外，公开了使用这种系统制备高峰值功率脉冲信号的方法。

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