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。

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。