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    COMPACT COHERENT HIGH BRIGHTNESS LIGHT SOURCE FOR THE MID-IR AND FAR IR
    12.
    发明申请
    COMPACT COHERENT HIGH BRIGHTNESS LIGHT SOURCE FOR THE MID-IR AND FAR IR 审中-公开
    紧凑的高亮度光源，用于中红外和红外线

    公开(公告)号：US20150023628A1

    公开(公告)日：2015-01-22

    申请号：US14508056

    申请日：2014-10-07

    Applicant: IMRA AMERICA, INC.

    Inventor： Martin E. FERMANN ,  Ingmar HARTL

    IPC: H01S3/00

    CPC classification number: H01S3/0092 ,  G02B6/02038 ,  G02F1/3534 ,  G02F1/365 ,  G02F2001/3528 ,  H01S3/067 ,  H01S3/06725 ,  H01S3/094046 ,  H01S3/109 ,  H01S3/1106 ,  H01S3/30 ,  H01S3/302

    Abstract: Compact laser systems are disclosed which include ultrafast laser sources in combination with nonlinear crystals or waveguides. In some implementations fiber based mid-IR sources producing very short pulses and/or mid-IR sources based on a mode locked fiber lasers are utilized. A difference frequency generator receives outputs from the ultrafast sources, and generates an output including a difference frequency. The output power from the difference frequency generator can further be enhanced via the implementation of large core dispersion shifted fibers. Exemplary applications of the compact, high brightness mid-IR light sources include medical applications, spectroscopy, ranging, sensing and metrology.

    Abstract translation: 公开了紧凑的激光系统，其包括与非线性晶体或波导组合的超快激光源。 在一些实现中，利用基于模式锁定光纤激光器产生非常短脉冲和/或中红外光源的基于光纤的中红外光源。 差频发生器接收来自超快源的输出，并产生包括差频的输出。 来自差分频率发生器的输出功率可以通过实施大型核心色散位移光纤进一步提高。 紧凑的高亮度中红外光源的示例性应用包括医疗应用，光谱学，测距，感测和计量学。

    COMPACT OPTICAL FREQUENCY COMB SYSTEMS
    13.
    发明申请
    COMPACT OPTICAL FREQUENCY COMB SYSTEMS 审中-公开
    紧凑的光学频率系统

    公开(公告)号：US20140321483A1

    公开(公告)日：2014-10-30

    申请号：US14325721

    申请日：2014-07-08

    Applicant: IMRA AMERICA, INC.

    Inventor： Martin E. FERMANN ,  Thomas R. SCHIBLI ,  Ingmar HARTL

    IPC: H01S3/11

    CPC classification number: H01S3/1115 ,  H01S3/0092 ,  H01S3/06712 ,  H01S3/06725 ,  H01S3/08059 ,  H01S3/10046 ,  H01S3/105 ,  H01S3/1053 ,  H01S3/1118 ,  H01S3/1616 ,  H01S3/176

    Abstract: Compact optical frequency sources are described. The comb source may include an intra-cavity optical element having a multi-material integrated structure with an electrically controllable active region. The active region may comprise a thin film. By way of example, the thin film and an insulating dielectric material disposed between two electrodes can provide for rapid loss modulation. In some embodiments the thin film may comprise graphene. In various embodiments of a frequency comb laser, rapid modulation of the CEO frequency can be implemented via electric modulation of the transmission or reflection loss of an additional optical element, which can be the saturable absorber itself. In another embodiment, the thin film can also be used as a saturable absorber in order to facilitate passive modelocking. In some implementations the optical element may be formed on a cleaved or polished end of an optical fiber.

    Abstract translation: 描述了紧凑的光频源。 梳状光源可以包括具有电子可控有源区域的多材料集成结构的腔内光学元件。 有源区可以包括薄膜。 作为示例，设置在两个电极之间的薄膜和绝缘介电材料可以提供快速损耗调制。 在一些实施例中，薄膜可以包括石墨烯。 在频率梳状激光器的各种实施例中，CEO频率的快速调制可以通过附加光学元件的传输或反射损耗的电调制来实现，其可以是可饱和吸收体本身。 在另一个实施例中，薄膜也可以用作饱和吸收体，以便于被动锁模。 在一些实施方式中，光学元件可以形成在光纤的切割或抛光端上。

    COMPACT COHERENT HIGH BRIGHTNESS LIGHT SOURCE FOR THE MID-IR AND FAR IR
    14.
    发明申请
    COMPACT COHERENT HIGH BRIGHTNESS LIGHT SOURCE FOR THE MID-IR AND FAR IR 有权
    紧凑的高亮度光源，用于中红外和红外线

    公开(公告)号：US20140219296A1

    公开(公告)日：2014-08-07

    申请号：US13682309

    申请日：2012-11-20

    Applicant: IMRA AMERICA, INC.

    Inventor： Martin E. FERMANN ,  Jens BETHGE ,  Ingmar HARTL

    IPC: H01S3/00 ,  G02B6/02

    CPC classification number: H01S3/0092 ,  G02B6/02038 ,  G02F1/3534 ,  G02F1/365 ,  G02F2001/3528 ,  H01S3/067 ,  H01S3/06725 ,  H01S3/094046 ,  H01S3/109 ,  H01S3/1106 ,  H01S3/30 ,  H01S3/302

    Abstract: Compact laser systems are disclosed which include ultrafast laser sources in combination with nonlinear crystals or waveguides. In some implementations fiber based mid-IR sources producing very short pulses and/or mid-IR sources based on a mode locked fiber lasers are utilized. A difference frequency generator receives outputs from the ultrafast sources, and generates an output including a difference frequency. The output power from the difference frequency generator can further be enhanced via the implementation of large core dispersion shifted fibers. Exemplary applications of the compact, high brightness mid-IR light sources include medical applications, spectroscopy, ranging, sensing and metrology.

    Abstract translation: 公开了紧凑的激光系统，其包括与非线性晶体或波导组合的超快激光源。 在一些实现中，利用基于模式锁定光纤激光器产生非常短脉冲和/或中红外光源的基于光纤的中红外光源。 差频发生器接收来自超快源的输出，并产生包括差频的输出。 来自差分频率发生器的输出功率可以通过实施大型核心色散位移光纤进一步提高。 紧凑的高亮度中红外光源的示例性应用包括医疗应用，光谱学，测距，感测和计量学。

    FREQUENCY COMB SOURCE WITH LARGE COMB SPACING
    17.
    发明申请
    FREQUENCY COMB SOURCE WITH LARGE COMB SPACING 审中-公开
    频率合成源与大型COMB间距

    公开(公告)号：US20160097963A1

    公开(公告)日：2016-04-07

    申请号：US14967709

    申请日：2015-12-14

    Applicant: IMRA AMERICA, INC.

    Inventor： Martin FERMANN ,  Ingmar HARTL

    IPC: G02F1/365 ,  H01S3/11 ,  H01S3/00

    CPC classification number: G02F1/365 ,  G01J3/10 ,  G02F2001/3528 ,  H01S3/0085 ,  H01S3/0092 ,  H01S3/0675 ,  H01S3/08054 ,  H01S3/0809 ,  H01S3/10046 ,  H01S3/105 ,  H01S3/1106 ,  H01S3/1112 ,  H01S3/1115 ,  H01S3/1118 ,  H01S3/1618

    Abstract: A frequency comb laser providing large comb spacing is disclosed. At least one embodiment includes a mode locked waveguide laser system. The mode locked waveguide laser includes a laser cavity having a waveguide, and a dispersion control unit (DCU) in the cavity. The DCU imparts an angular dispersion, group-velocity dispersion (GVD) and a spatial chirp to a beam propagating in the cavity. The DCU is capable of producing net GVD in a range from a positive value to a negative value. In some embodiments a tunable fiber frequency comb system configured as an optical frequency synthesizer is provided. In at least one embodiment a low phase noise micro-wave source may be implemented with a fiber comb laser having a comb spacing greater than about 1 GHz. The laser system is suitable for mass-producible fiber comb sources with large comb spacing and low noise. Applications include high-resolution spectroscopy.

    Abstract translation: 公开了一种提供较大梳形间距的频率梳状激光器。 至少一个实施例包括模式锁定波导激光系统。 模式锁定波导激光器包括具有波导的激光腔和空腔中的色散控制单元（DCU）。 DCU向在腔中传播的光束赋予角度色散，群速度色散（GVD）和空间啁啾声。 DCU能够在从正值到负值的范围内产生净GVD。 在一些实施例中，提供了被配置为光频合成器的可调光纤频率梳状系统。 在至少一个实施例中，低相位噪声微波源可以用具有大于约1GHz的梳齿间隔的光纤梳状激光器来实现。 激光系统适用于具有大梳齿间隔和低噪音的大规模生产的光纤梳状光源。 应用包括高分辨率光谱。

    OPTICAL SCANNING AND IMAGING SYSTEMS BASED ON DUAL PULSED LASER SYSTEMS
    18.
    发明申请
    OPTICAL SCANNING AND IMAGING SYSTEMS BASED ON DUAL PULSED LASER SYSTEMS 审中-公开
    基于双脉冲激光系统的光学扫描和成像系统

    公开(公告)号：US20160094008A1

    公开(公告)日：2016-03-31

    申请号：US14964779

    申请日：2015-12-10

    Applicant: IMRA AMERICA, INC.

    Inventor： Martin E. FERMANN ,  Ingmar HARTL

    IPC: H01S3/10 ,  H01S3/13 ,  H01S3/23 ,  H01S3/11 ,  H01S3/106

    CPC classification number: H01S3/10046 ,  G01B9/02001 ,  G01N21/31 ,  G01N2021/317 ,  G02B6/02304 ,  H01S3/0675 ,  H01S3/06754 ,  H01S3/08054 ,  H01S3/1067 ,  H01S3/1068 ,  H01S3/11 ,  H01S3/1115 ,  H01S3/13 ,  H01S3/1307 ,  H01S3/1392 ,  H01S3/1394 ,  H01S3/2383

    Abstract: The invention relates to scanning pulsed laser systems for optical imaging. Coherent dual scanning laser systems (CDSL) are disclosed and some applications thereof. Various alternatives for implementation are illustrated, including highly integrated configurations. In at least one embodiment a coherent dual scanning laser system (CDSL) includes two passively modelocked fiber oscillators. The oscillators are configured to operate at slightly different repetition rates, such that a difference δfr in repetition rates is small compared to the values fr1 and fr2 of the repetition rates of the oscillators. The CDSL system also includes a non-linear frequency conversion section optically connected to each oscillator. The section includes a non-linear optical element generating a frequency converted spectral output having a spectral bandwidth and a frequency comb comprising harmonics of the oscillator repetition rates. A CDSL may be arranged in an imaging system for one or more of optical imaging, microscopy, micro-spectroscopy and/or THz imaging.

    Abstract translation: 本发明涉及用于光学成像的扫描脉冲激光系统。 公开了相干双扫描激光系统（CDSL）及其一些应用。 示出了用于实现的各种替代方案，包括高度集成的配置。 在至少一个实施例中，相干双扫描激光系统（CDSL）包括两个被动锁模光纤振荡器。 振荡器被配置为以稍微不同的重复率操作，使得与振荡器的重复率的值fr1和fr2相比，重复率的差δfr小。 CDSL系统还包括与每个振荡器光学连接的非线性频率转换部分。 该部分包括产生具有频谱带宽的频率转换频谱输出和包括振荡器重复频率的谐波的频率梳的非线性光学元件。 可以在成像系统中布置CDSL以用于光学成像，显微镜，微光谱和/或THz成像中的一种或多种。

    OPTICAL SCANNING AND IMAGING SYSTEMS BASED ON DUAL PULSED LASER SYSTEMS
    20.
    发明申请
    OPTICAL SCANNING AND IMAGING SYSTEMS BASED ON DUAL PULSED LASER SYSTEMS 审中-公开
    基于双脉冲激光系统的光学扫描和成像系统

    公开(公告)号：US20140219298A1

    公开(公告)日：2014-08-07

    申请号：US14247828

    申请日：2014-04-08

    Applicant: IMRA AMERICA, INC.

    Inventor： Martin E. FERMANN ,  Ingmar HARTL

    IPC: H01S3/10

    CPC classification number: H01S3/10046 ,  G01B9/02001 ,  G01N21/31 ,  G01N2021/317 ,  G02B6/02304 ,  H01S3/0675 ,  H01S3/06754 ,  H01S3/08054 ,  H01S3/1067 ,  H01S3/1068 ,  H01S3/11 ,  H01S3/1115 ,  H01S3/13 ,  H01S3/1307 ,  H01S3/1392 ,  H01S3/1394 ,  H01S3/2383

    Abstract: The invention relates to scanning pulsed laser systems for optical imaging. Coherent dual scanning laser systems (CDSL) are disclosed and some applications thereof. Various alternatives for implementation are illustrated, including highly integrated configurations. In at least one embodiment a coherent dual scanning laser system (CDSL) includes two passively modelocked fiber oscillators. The oscillators are configured to operate at slightly different repetition rates, such that a difference δfr in repetition rates is small compared to the values fr1 and fr2 of the repetition rates of the oscillators. The CDSL system also includes a non-linear frequency conversion section optically connected to each oscillator. The section includes a non-linear optical element generating a frequency converted spectral output having a spectral bandwidth and a frequency comb comprising harmonics of the oscillator repetition rates. A CDSL may be arranged in an imaging system for one or more of optical imaging, microscopy, micro-spectroscopy and/or THz imaging.

    Abstract translation: 本发明涉及用于光学成像的扫描脉冲激光系统。 公开了相干双扫描激光系统（CDSL）及其一些应用。 示出了用于实现的各种替代方案，包括高度集成的配置。 在至少一个实施例中，相干双扫描激光系统（CDSL）包括两个被动锁模光纤振荡器。 振荡器被配置为以稍微不同的重复率操作，使得与振荡器的重复率的值fr1和fr2相比，重复率的差δfr小。 CDSL系统还包括与每个振荡器光学连接的非线性频率转换部分。 该部分包括产生具有频谱带宽的频率转换频谱输出和包括振荡器重复频率的谐波的频率梳的非线性光学元件。 可以在成像系统中布置CDSL以用于光学成像，显微镜，微光谱和/或THz成像中的一种或多种。

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