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    SYSTEMS AND METHODS FOR CONTROL OF WAVEFORM-AGILE LASER TRANSMITTER
    2.
    发明申请
    SYSTEMS AND METHODS FOR CONTROL OF WAVEFORM-AGILE LASER TRANSMITTER 有权

    公开(公告)号：US20220021174A1

    公开(公告)日：2022-01-20

    申请号：US16928512

    申请日：2020-07-14

    Applicant: Raytheon Company

    Inventor： Robert D. Stultz ,  Derek Hendry ,  Eran Marcus

    IPC: H01S3/067 ,  G01S17/10 ,  H04B10/50 ,  G01S7/484

    Abstract: A laser transmitter including a waveform controller arranged to generate a waveform script having at least one of a pulse repetition frequency setting, a pulse duration setting, and a pulse amplitude pre-warp setting. The transmitter also includes an optical waveform generator arranged to: i) receive the waveform script, ii) generate pre-warped signal pulses based on the waveform script to compensate for gain distortion effects of a laser power amplifier, and iii) output the pre-warped signal pulses. The laser power amplifier is arranged to: i) receive the pre-warped signal pulses, ii) receive a continuous wave signal, and iii) output amplified signal pulses that maintain a substantially constant drive intensity at the input of a non-linear wavelength converter. The non-linear wavelength converter is arranged to receive the amplified signal pulses and emit wavelength-converted pulses.

    OPTICAL PULSE CONTRAST IMPROVEMENT USING NONLINEAR CONVERSION
    3.
    发明申请
    OPTICAL PULSE CONTRAST IMPROVEMENT USING NONLINEAR CONVERSION 审中-公开

    公开(公告)号：US20180231638A1

    公开(公告)日：2018-08-16

    申请号：US15950747

    申请日：2018-04-11

    Applicant: Raytheon Company

    Inventor： Brian F. Boland ,  Robert D. Stultz ,  John J. Wootan

    IPC: G01S7/48 ,  G01S17/10 ,  G01S7/484 ,  G01S7/481

    CPC classification number: G01S7/4802 ,  G01S7/4814 ,  G01S7/484 ,  G01S17/10

    Abstract: A laser radar (LADAR) system includes a laser transmitter configured to (i) emit laser pulses at a first wavelength and (ii) emit amplified spontaneous emission (ASE) in a spectrum concentrated around the first wavelength. The LADAR system also includes a non-linear converter configured to (i) convert the laser pulses to a second wavelength and (ii) allow the ASE to remain substantially unconverted in the spectrum concentrated around the first wavelength. The LADAR system further includes a receiver configured to receive and detect reflected laser pulses, where the reflected laser pulses include the laser pulses at the second wavelength after reflection from at least one target. In addition, the LADAR system includes a spectral filter configured to (i) allow passage of the laser pulses or the reflected laser pulses and (ii) substantially filter the ASE and prevent the filtered ASE from being detected by the receiver.

    Microchip laser with single solid etalon and interfacial coating
    7.
    发明授权
    Microchip laser with single solid etalon and interfacial coating 有权
    具有单固体标准具和界面涂层的Microchip激光

    公开(公告)号：US09515448B2

    公开(公告)日：2016-12-06

    申请号：US13627633

    申请日：2012-09-26

    Applicant: Raytheon Company

    Inventor： Robert D. Stultz ,  Juan Carlos Sotelo ,  David M. Filgas

    IPC: H01S3/06 ,  H01S3/08 ,  H01S3/113 ,  H01S3/16 ,  H01S3/0941

    CPC classification number: H01S3/0627 ,  H01S3/0612 ,  H01S3/0621 ,  H01S3/08036 ,  H01S3/09415 ,  H01S3/113 ,  H01S3/1618 ,  H01S3/1643

    Abstract: A microchip laser includes a microchip laser base comprising a gain region and a passive Q-switch region. The microchip laser also includes a solid etalon coupled to the microchip laser base, and an interfacial coating disposed between the microchip laser base and the solid etalon. In some embodiments, the microchip laser further includes a dichroic coating disposed on a surface of the microchip laser base opposite the interfacial coating.

    Abstract translation: 微芯片激光器包括包括增益区域和无源Q开关区域的微芯片激光器基座。 微芯片激光器还包括耦合到微芯片激光器基座的固体标准具和设置在微芯片激光基座和固体标准具之间的界面涂层。 在一些实施例中，微芯片激光器还包括设置在与界面涂层相对的微芯片激光器基底的表面上的二向色涂层。

    END PUMPED PWG WITH TAPERED CORE THICKNESS
    8.
    发明申请
    END PUMPED PWG WITH TAPERED CORE THICKNESS 有权
    带泵芯的厚度的末端泵

    公开(公告)号：US20160047981A1

    公开(公告)日：2016-02-18

    申请号：US14682539

    申请日：2015-04-09

    Applicant: RAYTHEON COMPANY

    Inventor： David M. Filgas ,  Robert D. Stultz

    IPC: G02B6/122

    CPC classification number: G02B6/1228 ,  G02B6/12007 ,  G02B6/4296 ,  G02B6/4298 ,  G02B2006/12159 ,  H01S3/042 ,  H01S3/0617 ,  H01S3/0625 ,  H01S3/0632 ,  H01S3/0637 ,  H01S3/08072 ,  H01S3/09415 ,  H01S3/1643

    Abstract: A planar wave guide (PWG) having a first end for coupling to a light pump and a second end opposite to the first end and including a first cladding layer; a second cladding layer; and a uniformly doped core layer between the first cladding layer and the second cladding layer, wherein the core layer is tapered having a smaller thickness at the first end and a larger thickness at the second end, and wherein a ratio of the core thickness to thickness of the cladding layers is smaller at the first end and larger at the second end.

    Abstract translation: 具有用于耦合到光泵的第一端和与第一端相对的第二端并包括第一包层的平面波导（PWG） 第二覆层; 以及在所述第一包层和所述第二包层之间的均匀掺杂的芯层，其中所述芯层在所述第一端具有较小厚度的锥形并且在所述第二端具有较大的厚度，并且其中所述芯厚度与厚度的比率 的包层在第一端较小，在第二端较大。

    Systems and methods for control of waveform-agile laser transmitter
    9.
    发明授权
    Systems and methods for control of waveform-agile laser transmitter 有权

    公开(公告)号：US11658451B2

    公开(公告)日：2023-05-23

    申请号：US16928512

    申请日：2020-07-14

    Applicant: Raytheon Company

    Inventor： Robert D. Stultz ,  Derek Hendry ,  Eran Marcus

    IPC: H01S3/067 ,  G01S7/484 ,  H04B10/50 ,  G01S17/10

    CPC classification number: H01S3/06754 ,  G01S7/484 ,  G01S17/10 ,  H04B10/504

    Abstract: A laser transmitter including a waveform controller arranged to generate a waveform script having at least one of a pulse repetition frequency setting, a pulse duration setting, and a pulse amplitude pre-warp setting. The transmitter also includes an optical waveform generator arranged to: i) receive the waveform script, ii) generate pre-warped signal pulses based on the waveform script to compensate for gain distortion effects of a laser power amplifier, and iii) output the pre-warped signal pulses. The laser power amplifier is arranged to: i) receive the pre-warped signal pulses, ii) receive a continuous wave signal, and iii) output amplified signal pulses that maintain a substantially constant drive intensity at the input of a non-linear wavelength converter. The non-linear wavelength converter is arranged to receive the amplified signal pulses and emit wavelength-converted pulses.

    Optical pulse contrast improvement using nonlinear conversion
    10.
    发明授权
    Optical pulse contrast improvement using nonlinear conversion 有权

    公开(公告)号：US10114107B2

    公开(公告)日：2018-10-30

    申请号：US15950747

    申请日：2018-04-11

    Applicant: Raytheon Company

    Inventor： Brian F. Boland ,  Robert D. Stultz ,  John J. Wootan

    IPC: G01C3/08 ,  G01S7/48 ,  G01S17/10 ,  G01S7/481 ,  G01S7/484

    Abstract: A laser radar (LADAR) system includes a laser transmitter configured to (i) emit laser pulses at a first wavelength and (ii) emit amplified spontaneous emission (ASE) in a spectrum concentrated around the first wavelength. The LADAR system also includes a non-linear converter configured to (i) convert the laser pulses to a second wavelength and (ii) allow the ASE to remain substantially unconverted in the spectrum concentrated around the first wavelength. The LADAR system further includes a receiver configured to receive and detect reflected laser pulses, where the reflected laser pulses include the laser pulses at the second wavelength after reflection from at least one target. In addition, the LADAR system includes a spectral filter configured to (i) allow passage of the laser pulses or the reflected laser pulses and (ii) substantially filter the ASE and prevent the filtered ASE from being detected by the receiver.

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