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    IN-LINE, HIGH ENERGY FIBER CHIRPED PULSE AMPLIFICATION SYSTEM
    2.
    发明申请
    IN-LINE, HIGH ENERGY FIBER CHIRPED PULSE AMPLIFICATION SYSTEM 有权
    在线，高能量纤维激光脉冲放大系统

    公开(公告)号：US20070273960A1

    公开(公告)日：2007-11-29

    申请号：US11837463

    申请日：2007-08-10

    申请人： Martin Fermann ,  Gennady Imeshev ,  Ingmar Hartl ,  Donald Harter

    发明人： Martin Fermann ,  Gennady Imeshev ,  Ingmar Hartl ,  Donald Harter

    IPC分类号： H01S3/00 ,  H04B10/12

    CPC分类号： H01S3/06754 ,  H01S3/005 ,  H01S3/0057 ,  H01S3/0085 ,  H01S3/0092 ,  H01S3/06712 ,  H01S3/06725 ,  H01S3/094007 ,  H01S3/10015

    摘要： By writing non-linear chirp into fiber Bragg gratings, greater control over dispersion compensation in chirped pulse amplification (CPA) systems is obtained, such that, for example, the dispersion profile of the fiber Bragg grating and a bulk compressor may be matched. An iterative method of writing the fiber grating can reduce the group delay ripple to very low levels; and adaptive control of the fiber grating dispersion profile can further reduce these levels, while in addition offering greater acceptable yield in the manufacture of such gratings. Fiber Bragg gratings may be designed so as to provide customized pulse shapes optimized for various end uses, such as micromachining, for example, and may also be used to counteract gain-narrowing in a downstream amplifier.

    摘要翻译： 通过将非线性啁啾写入光纤布拉格光栅，获得对啁啾脉冲放大（CPA）系统中色散补偿的更大控制，使得例如光纤布拉格光栅和大容量压缩机的色散曲线可以匹配。 编写光纤光栅的迭代方法可以将组延迟纹波降低到非常低的水平; 并且光纤光栅色散轮廓的自适应控制可以进一步降低这些水平，同时在制造这种光栅时提供更大的可接受的产量。 可以设计光纤布拉格光栅，以便提供针对各种最终用途（例如微加工）优化的定制脉冲形状，并且还可以用于抵消下游放大器中的增益变窄。

    Pulsed laser sources
    3.
    发明申请
    Pulsed laser sources 有权
    脉冲激光源

    公开(公告)号：US20060198398A1

    公开(公告)日：2006-09-07

    申请号：US11372859

    申请日：2006-03-10

    申请人： Martin Fermann ,  Ingmar Hartl ,  Gennady Imeshev

    发明人： Martin Fermann ,  Ingmar Hartl ,  Gennady Imeshev

    IPC分类号： H01S3/30 ,  H01S3/098 ,  H01S3/091

    CPC分类号： H01S3/0057 ,  G02F1/3517 ,  G02F2001/3528 ,  H01S3/0078 ,  H01S3/0092 ,  H01S3/067 ,  H01S3/0675 ,  H01S3/06754 ,  H01S3/094042 ,  H01S3/10 ,  H01S3/105 ,  H01S3/1053 ,  H01S3/106 ,  H01S3/1067 ,  H01S3/109 ,  H01S3/1106 ,  H01S3/1118 ,  H01S3/1616

    摘要： Various embodiments include modelocked fiber laser resonators that may be coupled with optical amplifiers. An isolator may separate the laser resonator from the amplifier, although certain embodiments exclude such an isolator. A reflective optical element on one end of the resonator having a relatively low reflectivity may be employed to couple light from the laser resonator to the amplifier. Enhanced pulse-width control may be provided with concatenated sections of both polarization-maintaining and non-polarization-maintaining fibers. Apodized fiber Bragg gratings and integrated fiber polarizers may be also be included in the laser cavity to assist in linearly polarizing the output of the cavity. Very short pulses with a large optical bandwidth may be obtained by matching the dispersion value of the fiber Bragg grating to the inverse of the dispersion of the intra-cavity fiber. Frequency comb sources may be constructed from such modelocked fiber oscillators. In various exemplary embodiments, low dispersion and an in-line interferometer that provides feedback, assist in controlling the frequency components output from the comb source.

    摘要翻译： 各种实施例包括可与光放大器耦合的锁模光纤激光谐振器。 隔离器可以将激光谐振器与放大器分离，尽管某些实施例不包括这种隔离器。 可以使用具有相对较低反射率的谐振器的一端上的反射光学元件将来自激光谐振器的光耦合到放大器。 可以提供增强的脉冲宽度控制，其具有两个偏振保持和非偏振保持光纤的级联部分。 变形光纤布拉格光栅和集成光纤偏振器也可以包括在激光腔中，以帮助线性偏振空腔的输出。 可以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。 频率梳源可以由这种锁模光纤振荡器构成。 在各种示例性实施例中，提供反馈的低色散和在线干涉仪有助于控制从梳状源输出的频率分量。

    Optical parametric amplification, optical parametric generation, and optical pumping in optical fibers systems
    5.
    发明授权
    Optical parametric amplification, optical parametric generation, and optical pumping in optical fibers systems 有权
    光学参数放大，光学参数生成和光纤系统中的光泵浦

    公开(公告)号：US08040929B2

    公开(公告)日：2011-10-18

    申请号：US11091015

    申请日：2005-03-25

    申请人： Gennady Imeshev ,  Martin Fermann

    发明人： Gennady Imeshev ,  Martin Fermann

    IPC分类号： H01S3/10

    CPC分类号： H01S3/10015 ,  G02F1/3558 ,  G02F1/39 ,  G02F2001/392 ,  G02F2203/26 ,  H01S3/005 ,  H01S3/0057 ,  H01S3/06708 ,  H01S3/06725 ,  H01S3/06754 ,  H01S3/06758 ,  H01S3/08013 ,  H01S3/0941 ,  H01S3/10092 ,  H01S3/109 ,  H01S3/1608 ,  H01S3/1616 ,  H01S3/302

    摘要： Embodiments described herein include a system for producing ultrashort tunable pulses based on ultra broadband OPA or OPG in nonlinear materials. The system parameters such as the nonlinear material, pump wavelengths, quasi-phase matching periods, and temperatures can be selected to utilize the intrinsic dispersion relations for such material to produce bandwidth limited or nearly bandwidth limited pulse compression. Compact high average power sources of short optical pulses tunable in the wavelength range of 1800-2100 nm and after frequency doubling in the wavelength range of 900-1050 nm can be used as a pump for the ultra broadband OPA or OPG. In certain embodiments, these short pump pulses are obtained from an Er fiber oscillator at about 1550 nm, amplified in Er fiber, Raman-shifted to 1800-2100 nm, stretched in a fiber stretcher, and amplified in Tm-doped fiber. To produce short pulses in the 900-1050 nm wavelength range, the pulses are frequency-doubled with a chirped frequency doubler for nearly bandwidth-limited output.

    摘要翻译： 本文描述的实施例包括用于在非线性材料中基于超宽带OPA或OPG产生超短可调脉冲的系统。 可以选择诸如非线性材料，泵浦波长，准相位匹配周期和温度之类的系统参数以利用这种材料的固有色散关系来产生带宽限制或几乎带宽限制的脉冲压缩。 在1800-2100nm的波长范围内可调谐的短光脉冲的紧凑型高平均电源可以在900-1050nm的波长范围内倍频之后用作超宽带OPA或OPG的泵。 在某些实施例中，这些短泵浦脉冲是从大约1550nm的Er光纤振荡器获得的，在Er光纤中放大，拉曼转移到1800-2100nm，在纤维拉伸器中拉伸，并在Tm掺杂光纤中进行放大。 为了在900-1050 nm波长范围内产生短脉冲，脉冲频率加倍，啁啾倍频器几乎受带宽限制的输出影响。

    OPTICAL PARAMETRIC AMPLIFICATION, OPTICAL PARAMETRIC GENERATION, AND OPTICAL PUMPING IN OPTICAL FIBERS SYSTEMS
    6.
    发明申请
    OPTICAL PARAMETRIC AMPLIFICATION, OPTICAL PARAMETRIC GENERATION, AND OPTICAL PUMPING IN OPTICAL FIBERS SYSTEMS 审中-公开
    光学参数放大，光学参数生成和光纤泵浦系统中的光学泵浦

    公开(公告)号：US20120062983A1

    公开(公告)日：2012-03-15

    申请号：US13232470

    申请日：2011-09-14

    申请人： Gennady Imeshev ,  Martin Fermann

    发明人： Gennady Imeshev ,  Martin Fermann

    IPC分类号： G02F1/355 ,  H01S3/067 ,  G02F1/39 ,  H01S3/30 ,  G02F1/35 ,  G02F1/37

    CPC分类号： H01S3/10015 ,  G02F1/3558 ,  G02F1/39 ,  G02F2001/392 ,  G02F2203/26 ,  H01S3/005 ,  H01S3/0057 ,  H01S3/06708 ,  H01S3/06725 ,  H01S3/06754 ,  H01S3/06758 ,  H01S3/08013 ,  H01S3/0941 ,  H01S3/10092 ,  H01S3/109 ,  H01S3/1608 ,  H01S3/1616 ,  H01S3/302

    摘要： Embodiments described herein include a system for producing ultrashort tunable pulses based on ultra broadband OPA or OPG in nonlinear materials. The system parameters such as the nonlinear material, pump wavelengths, quasi-phase matching periods, and temperatures can be selected to utilize the intrinsic dispersion relations for such material to produce bandwidth limited or nearly bandwidth limited pulse compression. Compact high average power sources of short optical pulses tunable in the wavelength range of 1800-2100 nm and after frequency doubling in the wavelength range of 900-1050 nm can be used as a pump for the ultra broadband OPA or OPG. In certain embodiments, these short pump pulses are obtained from an Er fiber oscillator at about 1550 nm, amplified in Er fiber, Raman-shifted to 1800-2100 nm, stretched in a fiber stretcher, and amplified in Tm-doped fiber.

    摘要翻译： 本文描述的实施例包括用于在非线性材料中基于超宽带OPA或OPG产生超短可调脉冲的系统。 可以选择诸如非线性材料，泵浦波长，准相位匹配周期和温度之类的系统参数以利用这种材料的固有色散关系来产生带宽限制或几乎带宽限制的脉冲压缩。 在1800-2100nm的波长范围内可调谐的短光脉冲的紧凑型高平均电源可以在900-1050nm的波长范围内倍频之后用作超宽带OPA或OPG的泵。 在某些实施例中，这些短泵浦脉冲是从大约1550nm的Er光纤振荡器获得的，在Er光纤中放大，拉曼转移到1800-2100nm，在纤维拉伸器中拉伸，并在Tm掺杂光纤中进行放大。

    Optical parametric amplification, optical parametric generation, and optical pumping in optical fibers systems
    7.
    发明申请
    Optical parametric amplification, optical parametric generation, and optical pumping in optical fibers systems 有权
    光学参数放大，光学参数生成和光纤系统中的光泵浦

    公开(公告)号：US20050238070A1

    公开(公告)日：2005-10-27

    申请号：US11091015

    申请日：2005-03-25

    申请人： Gennady Imeshev ,  Martin Fermann

    发明人： Gennady Imeshev ,  Martin Fermann

    IPC分类号： G02F1/355 ,  G02F1/39 ,  H01S3/00 ,  H01S3/067 ,  H01S3/0941 ,  H01S3/10 ,  H01S3/109 ,  H01S3/16 ,  H01S3/23 ,  H01S3/30

    CPC分类号： H01S3/10015 ,  G02F1/3558 ,  G02F1/39 ,  G02F2001/392 ,  G02F2203/26 ,  H01S3/005 ,  H01S3/0057 ,  H01S3/06708 ,  H01S3/06725 ,  H01S3/06754 ,  H01S3/06758 ,  H01S3/08013 ,  H01S3/0941 ,  H01S3/10092 ,  H01S3/109 ,  H01S3/1608 ,  H01S3/1616 ,  H01S3/302

    摘要： Embodiments described herein include a system for producing ultrashort tunable pulses based on ultra broadband OPA or OPG in nonlinear materials. The system parameters such as the nonlinear material, pump wavelengths, quasi-phase matching periods, and temperatures can be selected to utilize the intrinsic dispersion relations for such material to produce bandwidth limited or nearly bandwidth limited pulse compression. Compact high average power sources of short optical pulses tunable in the wavelength range of 1800-2100 nm and after frequency doubling in the wavelength range of 900-1050 nm can be used as a pump for the ultra broadband OPA or OPG. In certain embodiments, these short pump pulses are obtained from an Er fiber oscillator at about 1550 nm, amplified in Er fiber, Raman-shifted to 1800-2100 nm, stretched in a fiber stretcher, and amplified in Tm-doped fiber. To produce short pulses in the 900-1050 nm wavelength range, the pulses are frequency-doubled with a chirped frequency doubler for nearly bandwidth-limited output.

    摘要翻译： 本文描述的实施例包括用于在非线性材料中基于超宽带OPA或OPG产生超短可调脉冲的系统。 可以选择诸如非线性材料，泵浦波长，准相位匹配周期和温度之类的系统参数以利用这种材料的固有色散关系来产生带宽限制或几乎带宽限制的脉冲压缩。 在1800-2100nm的波长范围内可调谐的短光脉冲的紧凑型高平均电源可以在900-1050nm的波长范围内倍频之后用作超宽带OPA或OPG的泵。 在某些实施例中，这些短泵浦脉冲是从大约1550nm的Er光纤振荡器获得的，在Er光纤中放大，拉曼转移到1800-2100nm，在纤维拉伸器中拉伸，并在Tm掺杂光纤中进行放大。 为了在900-1050 nm波长范围内产生短脉冲，脉冲频率加倍，啁啾倍频器几乎受带宽限制的输出影响。

    Broadband generation of mid IR, coherent continua with optical fibers
    10.
    发明授权
    Broadband generation of mid IR, coherent continua with optical fibers 有权
    宽带生成中红外，相干连续光纤

    公开(公告)号：US08971358B2

    公开(公告)日：2015-03-03

    申请号：US13415374

    申请日：2012-03-08

    申请人： Martin Fermann ,  Ingmar Hartl

    发明人： Martin Fermann ,  Ingmar Hartl

    IPC分类号： H01S3/30 ,  H01S3/098 ,  H01S3/10 ,  G02F1/365 ,  G02F1/35

    CPC分类号： G02F1/365 ,  G02F2001/3528 ,  H01S3/10

    摘要： Coherent and compact supercontinuum light sources for the mid IR spectral regime are disclosed and exemplary applications thereof. The supercontinuum generation is based on the use of highly nonlinear fibers or waveguides. In at least one embodiment the coherence of the supercontinuum sources is increased using low noise mode locked short pulse sources. Compact supercontinuum light sources can be constructed with the use of passively mode locked fiber or diode lasers. Wavelength tunable sources can be constructed using appropriate optical filters or frequency conversion sections. Highly coherent supercontinuum sources further facilitate coherent detection schemes and can improve the signal/noise ratio in lock in detection schemes.

    摘要翻译： 中红外光谱方案的相干紧凑超连续光源被公开及其示例性应用。 超连续谱生成是基于使用高度非线性的光纤或波导。 在至少一个实施例中，使用低噪声模式锁定短脉冲源来增加超连续谱源的相干性。 紧凑型超连续光源可以采用被动锁模光纤或二极管激光器构成。 可以使用适当的光学滤波器或变频部分来构建波长可调谐源。 高度一致的超连续谱源可进一步促进相干检测方案，并可以在锁定检测方案中提高信噪比。