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    HIGH POWER SHORT PULSE FIBER LASER
    4.
    发明申请
    HIGH POWER SHORT PULSE FIBER LASER 有权

    公开(公告)号：US20150085885A1

    公开(公告)日：2015-03-26

    申请号：US14012508

    申请日：2013-08-28

    Applicant: IMRA America, Inc.

    Inventor： Xinhua Gu ,  Mark Bendett ,  Gyu Cheon Cho ,  Martin E. Fermann

    IPC: H01S3/11 ,  H01S3/067

    CPC classification number: H01S3/1115 ,  H01S3/0057 ,  H01S3/0064 ,  H01S3/0078 ,  H01S3/06712 ,  H01S3/06741 ,  H01S3/06754 ,  H01S3/094003 ,  H01S3/094042 ,  H01S3/0941 ,  H01S3/1028 ,  H01S3/1305 ,  H01S3/1618 ,  H01S3/1698

    Abstract: A pulsed laser comprises an oscillator and amplifier. An attenuator and/or pre-compressor may be disposed between the oscillator and amplifier to improve performance and possibly the quality of pulses output from the laser. Such pre-compression may be implemented with spectral filters and/or dispersive elements between the oscillator and amplifier. The pulsed laser may have a modular design comprising modular devices that may have Telcordia-graded quality and reliability. Fiber pigtails extending from the device modules can be spliced together to form laser system. In one embodiment, a laser system operating at approximately 1050 nm comprises an oscillator having a spectral bandwidth of approximately 19 nm. This oscillator signal can be manipulated to generate a pulse having a width below approximately 90 fs. A modelocked linear fiber laser cavity with enhanced pulse-width control includes concatenated sections of both polarization-maintaining and non-polarization-maintaining fibers. Apodized fiber Bragg gratings and integrated fiber polarizers are included in the cavity to assist in linearly polarizing the output of the cavity. Very short pulses with a large optical bandwidth are obtained by matching the dispersion value of the fiber Bragg grating to the inverse of the dispersion of the intra-cavity fiber.

    High power short pulse fiber laser
    5.
    发明授权
    High power short pulse fiber laser 有权

    公开(公告)号：US09640940B2

    公开(公告)日：2017-05-02

    申请号：US14685320

    申请日：2015-04-13

    Applicant: IMRA America, Inc.

    Inventor： Xinhua Gu ,  Mark Bendett ,  Gyu Cheon Cho ,  Martin E. Fermann

    IPC: H01S3/098 ,  H01S3/11 ,  H01S3/094 ,  H01S3/16 ,  H01S3/00 ,  H01S3/0941 ,  H01S3/102 ,  H01S3/067 ,  H01S3/13

    CPC classification number: H01S3/1115 ,  H01S3/0057 ,  H01S3/0064 ,  H01S3/0078 ,  H01S3/06712 ,  H01S3/06741 ,  H01S3/06754 ,  H01S3/094003 ,  H01S3/094042 ,  H01S3/0941 ,  H01S3/1028 ,  H01S3/1305 ,  H01S3/1618 ,  H01S3/1698

    Abstract: A pulsed laser comprises an oscillator and amplifier. An attenuator and/or pre-compressor may be disposed between the oscillator and amplifier to improve performance and possibly the quality of pulses output from the laser. Such pre-compression may be implemented with spectral filters and/or dispersive elements between the oscillator and amplifier. The pulsed laser may have a modular design comprising modular devices that may have Telcordia-graded quality and reliability. Fiber pigtails extending from the device modules can be spliced together to form laser system. In one embodiment, a laser system operating at approximately 1050 nm comprises an oscillator having a spectral bandwidth of approximately 19 nm. This oscillator signal can be manipulated to generate a pulse having a width below approximately 90 fs. A modelocked linear fiber laser cavity with enhanced pulse-width control includes concatenated sections of both polarization-maintaining and non-polarization-maintaining fibers. Apodized fiber Bragg gratings and integrated fiber polarizers are included in the cavity to assist in linearly polarizing the output of the cavity. Very short pulses with a large optical bandwidth are obtained by matching the dispersion value of the fiber Bragg grating to the inverse of the dispersion of the intra-cavity fiber.

    HIGH POWER SHORT PULSE FIBER LASER
    6.
    发明申请
    HIGH POWER SHORT PULSE FIBER LASER 有权
    高功率短脉冲光纤激光器

    公开(公告)号：US20150325977A1

    公开(公告)日：2015-11-12

    申请号：US14685320

    申请日：2015-04-13

    Applicant: IMRA America, Inc.

    Inventor： Xinhua Gu ,  Mark Bendett ,  Gyu Cheon Cho ,  Martin E. Fermann

    IPC: H01S3/11 ,  H01S3/0941 ,  H01S3/16 ,  H01S3/102 ,  H01S3/067 ,  H01S3/094

    CPC classification number: H01S3/1115 ,  H01S3/0057 ,  H01S3/0064 ,  H01S3/0078 ,  H01S3/06712 ,  H01S3/06741 ,  H01S3/06754 ,  H01S3/094003 ,  H01S3/094042 ,  H01S3/0941 ,  H01S3/1028 ,  H01S3/1305 ,  H01S3/1618 ,  H01S3/1698

    Abstract: A pulsed laser comprises an oscillator and amplifier. An attenuator and/or pre-compressor may be disposed between the oscillator and amplifier to improve performance and possibly the quality of pulses output from the laser. Such pre-compression may be implemented with spectral filters and/or dispersive elements between the oscillator and amplifier. The pulsed laser may have a modular design comprising modular devices that may have Telcordia-graded quality and reliability. Fiber pigtails extending from the device modules can be spliced together to form laser system. In one embodiment, a laser system operating at approximately 1050 nm comprises an oscillator having a spectral bandwidth of approximately 19 nm. This oscillator signal can be manipulated to generate a pulse having a width below approximately 90 fs. A modelocked linear fiber laser cavity with enhanced pulse-width control includes concatenated sections of both polarization-maintaining and non-polarization-maintaining fibers. Apodized fiber Bragg gratings and integrated fiber polarizers are included in the cavity to assist in linearly polarizing the output of the cavity. Very short pulses with a large optical bandwidth are obtained by matching the dispersion value of the fiber Bragg grating to the inverse of the dispersion of the intra-cavity fiber.

    Abstract translation: 脉冲激光器包括振荡器和放大器。 衰减器和/或预压缩器可以设置在振荡器和放大器之间以提高性能以及可能的从激光器输出的脉冲的质量。 这种预压缩可以用振荡器和放大器之间的频谱滤波器和/或分散元件来实现。 脉冲激光器可以具有包括可能具有Telcordia分级质量和可靠性的模块化设备的模块化设计。 从设备模块延伸的光纤尾纤可以拼接在一起形成激光系统。 在一个实施例中，在大约1050nm操作的激光系统包括具有约19nm的光谱带宽的振荡器。 该振荡器信号可被操纵以产生宽度低于大约90fs的脉冲。 具有增强的脉冲宽度控制的锁模线性光纤激光腔包括两个偏振保持和非偏振保持光纤的级联部分。 变形纤维布拉格光栅和集成光纤偏振器被包括在空腔中，以帮助线性偏振空腔的输出。 通过将光纤布拉格光栅的色散值与腔内光纤的色散相反来获得具有大光学带宽的非常短的脉冲。

    High power short pulse fiber laser
    7.
    发明授权
    High power short pulse fiber laser 有权
    大功率短脉冲光纤激光器

    公开(公告)号：US09071037B2

    公开(公告)日：2015-06-30

    申请号：US14012508

    申请日：2013-08-28

    Applicant: IMRA America, Inc.

    Inventor： Xinhua Gu ,  Mark Bendett ,  Gyu Cheon Cho ,  Martin E. Fermann

    IPC: H01S3/30 ,  H01S3/067 ,  H01S3/11

    CPC classification number: H01S3/1115 ,  H01S3/0057 ,  H01S3/0064 ,  H01S3/0078 ,  H01S3/06712 ,  H01S3/06741 ,  H01S3/06754 ,  H01S3/094003 ,  H01S3/094042 ,  H01S3/0941 ,  H01S3/1028 ,  H01S3/1305 ,  H01S3/1618 ,  H01S3/1698

    Abstract: A pulsed laser comprises an oscillator and amplifier. An attenuator and/or pre-compressor may be disposed between the oscillator and amplifier to improve performance and possibly the quality of pulses output from the laser. Such pre-compression may be implemented with spectral filters and/or dispersive elements between the oscillator and amplifier. The pulsed laser may have a modular design comprising modular devices that may have Telcordia-graded quality and reliability. Fiber pigtails extending from the device modules can be spliced together to form laser system. In one embodiment, a laser system operating at approximately 1050 nm comprises an oscillator having a spectral bandwidth of approximately 19 nm. This oscillator signal can be manipulated to generate a pulse having a width below approximately 90 fs. A modelocked linear fiber laser cavity with enhanced pulse-width control includes concatenated sections of both polarization-maintaining and non-polarization-maintaining fibers. Apodized fiber Bragg gratings and integrated fiber polarizers are included in the cavity to assist in linearly polarizing the output of the cavity. Very short pulses with a large optical bandwidth are obtained by matching the dispersion value of the fiber Bragg grating to the inverse of the dispersion of the intra-cavity fiber.

    Abstract translation: 脉冲激光器包括振荡器和放大器。 衰减器和/或预压缩器可以设置在振荡器和放大器之间以提高性能以及可能的从激光器输出的脉冲的质量。 这种预压缩可以用振荡器和放大器之间的频谱滤波器和/或分散元件来实现。 脉冲激光器可以具有包括可能具有Telcordia分级质量和可靠性的模块化设备的模块化设计。 从设备模块延伸的光纤尾纤可以拼接在一起形成激光系统。 在一个实施例中，在大约1050nm操作的激光系统包括具有约19nm的光谱带宽的振荡器。 该振荡器信号可被操纵以产生宽度低于大约90fs的脉冲。 具有增强的脉冲宽度控制的锁模线性光纤激光腔包括两个偏振保持和非偏振保持光纤的级联部分。 变形纤维布拉格光栅和集成光纤偏振器被包括在空腔中，以帮助线性偏振空腔的输出。 通过将光纤布拉格光栅的色散值与腔内光纤的色散相反来获得具有大光学带宽的非常短的脉冲。

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