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公开(公告)号：US20110216384A1
公开(公告)日：2011-09-08
申请号：US13115075
申请日：2011-05-24
申请人： Christophe Moser , Frank Havermeyer
发明人： Christophe Moser , Frank Havermeyer
IPC分类号： G02B5/32
CPC分类号： G02B27/0927 , G02B5/1823 , G02B5/32 , G02B27/0944
摘要： The invention disclosed here teaches methods and apparatus for altering the temporal and spatial shape of an optical pulse. The methods correct for the spatial beam deformation caused by the intrinsic DC index gradient in a volume holographic chirped reflective grating (VHCRG). The first set of methods involves a mechanical mean of pre-deforming the VHCRG so that the combination of the deflection caused by the DC index gradient is compensated by the mechanical deformation of the VHCRG. The second set of methods involves compensating the angular deflection caused by the DC index gradient by retracing the diffracted beam back onto itself and by re-diffracting from the same VHCRG. Apparatus for temporally stretching, amplifying and temporally compressing light pulses are disclosed that rely on the methods above.
摘要翻译： 这里公开的发明教导了用于改变光脉冲的时间和空间形状的方法和装置。 该方法校正了体积全息啁啾反射光栅（VHCRG）中由本征DC指数梯度引起的空间光束变形。 第一组方法涉及到使VHCRG预变形的机械平均值，使得由DC指数梯度引起的偏转的组合由VHCRG的机械变形补偿。 第二组方法包括通过将衍射光束回射回自身并通过从相同的VHCRG重新衍射来补偿由DC折射率梯度引起的角度偏转。 公开了依赖于上述方法的用于暂时拉伸，放大和时间压缩光脉冲的装置。
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公开(公告)号：US20110216316A1
公开(公告)日：2011-09-08
申请号：US13115080
申请日：2011-05-24
申请人： Christophe Moser , Frank Havermeyer
发明人： Christophe Moser , Frank Havermeyer
IPC分类号： G01J3/28
CPC分类号： G01J3/28
摘要： The present invention relates to methods of measuring the optical characteristics of volume holographic gratings with high resolution and with a large spectral coverage using a spectrally broad band source in conjunction with instruments that measure the spectrum such as spectrometers, imaging spectrometers, and spectrum analyzers.
摘要翻译： 本发明涉及使用光谱宽带光源与测量光谱仪器（如光谱仪，成像光谱仪和光谱分析仪）一起测量具有高分辨率和大光谱覆盖的体积全息光栅的光学特性的方法。
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公开(公告)号：US07639718B1
公开(公告)日：2009-12-29
申请号：US11986739
申请日：2007-11-26
IPC分类号： H01S3/10
CPC分类号： H01S5/141 , H01S3/08009 , H01S3/109
摘要： The disclosed invention is an external cavity laser with a volume holographic VHG output coupler. The facet of the VHG is coated with a very high reflectivity coating (HR close to 100%) for the purpose of reflecting the second harmonic (SH) light generated intra-cavity. The HR coating for the SH light has also an anti-reflection (AR) coating at the fundamental wavelength. The reflected second harmonic (SH) light is either reflected directly out of the cavity by the VHG or back to the cavity towards the optics that deflect the SH light out of the cavity.
摘要翻译： 所公开的发明是具有体积全息VHG输出耦合器的外腔激光器。 为了反映产生腔内的二次谐波（SH）光，VHG的面被涂覆有非常高的反射率涂层（HR接近100％）。 用于SH光的HR涂层也具有基波长的抗反射（AR）涂层。 反射的二次谐波（SH）光或者通过VHG直接从腔体反射出来，或者朝向将SH光偏离空腔的光学器件反射回腔体。
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公开(公告)号：US20120002197A1
公开(公告)日：2012-01-05
申请号：US13157265
申请日：2011-06-09
申请人： Christophe Moser , Frank Havermeyer
发明人： Christophe Moser , Frank Havermeyer
CPC分类号： G01J3/02 , G01J3/0227 , G01J3/44 , G02B5/32 , G03H1/0248
摘要： The invention disclosed here teaches methods to fabricate and utilize a non-dispersive holographic wavelength blocker. The invention enables the observation of the Raman signal near the excitation wavelength (˜9 cm−1) with the compactness of standard thin film/holographic notch filter. The novelty is contacting several individual volume holographic blocking notch filter (VHBF) to form one high optical density blocking filter without creating spurious multiple diffractions that degrade the filter performance. Such ultra-narrow-band VHBF can be used in existing compact Raman instruments and thus will help bring high-end research to a greater number of users at a lower cost.
摘要翻译： 这里公开的发明教导了制造和利用非色散全息波长阻挡剂的方法。 本发明能够以标准薄膜/全息陷波滤波器的紧凑度观察激发波长（〜9cm -1）附近的拉曼信号。 新颖的是接触几个单独的体积全息阻塞陷波滤波器（VHBF）以形成一个高光密度阻塞滤波器，而不会产生降低滤波器性能的伪多重衍射。 这种超窄带VHBF可以用于现有的紧凑型拉曼仪器，从而有助于以更低的成本为更多的用户带来高端研究。
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公开(公告)号：US20100027001A1
公开(公告)日：2010-02-04
申请号：US12315470
申请日：2008-12-03
申请人： Christophe Moser , Frank Havermeyer
发明人： Christophe Moser , Frank Havermeyer
CPC分类号： G01J3/02 , G01J3/0227 , G01J3/44 , G02B5/32 , G03H1/0248
摘要： The invention disclosed here teaches methods to fabricate and utilize a non-dispersive holographic wavelength blocker. The invention enables the observation of the Raman signal near the excitation wavelength (˜9 cm−1) with the compactness of standard thin film/holographic notch filter. The novelty is contacting several individual volume holographic blocking notch filter (VHBF) to form one high optical density blocking filter without creating spurious multiple diffractions that degrade the filter performance. Such ultra-narrow-band VHBF can be used in existing compact Raman instruments and thus will help bring high-end research to a greater number of users at a lower cost.
摘要翻译： 这里公开的发明教导了制造和利用非色散全息波长阻挡剂的方法。 本发明能够以标准薄膜/全息陷波滤波器的紧凑度观察激发波长（〜9cm -1）附近的拉曼信号。 新颖的是接触几个单独的体积全息阻塞陷波滤波器（VHBF）以形成一个高光密度阻塞滤波器，而不会产生降低滤波器性能的伪多重衍射。 这种超窄带VHBF可以用于现有的紧凑型拉曼仪器，从而有助于以更低的成本为更多的用户带来高端研究。
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公开(公告)号：US20090238217A1
公开(公告)日：2009-09-24
申请号：US12154636
申请日：2008-05-23
IPC分类号： H01S3/10
CPC分类号： H01S5/141 , H01S3/08059 , H01S3/1055 , H01S5/143 , H01S5/4062
摘要： A method is presented for shaping the spectral response of volume holographic grating elements by applying controlled thermal energy. The methods allow generating continuous or discontinuous grating periods from a fixed grating period. The methods are applicable to optical feedback into optical sources such as light emitting diodes, lasers and other general optical filtering applications.
摘要翻译： 提出了一种通过应用受控热能来形成体积全息光栅元件的光谱响应的方法。 该方法允许从固定光栅周期产生连续或不连续的光栅周期。 这些方法适用于光反馈到诸如发光二极管，激光器和其它一般光学滤波应用的光源中。
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公开(公告)号：US20060280209A1
公开(公告)日：2006-12-14
申请号：US11352500
申请日：2006-02-10
IPC分类号： H01S3/13
CPC分类号： H01S5/4025 , G02B5/18 , G02B19/0028 , G02B19/0057 , G02B19/0061 , G02B27/0905 , G02B27/108 , G02B27/1086 , H01S5/4012 , H01S5/405 , H01S5/4062
摘要： Embodiments are directed to a beam combining apparatus including a light source having a first emitter with a first output wavelength and at least one second emitter having a second output wavelength. A beam conditioning section is configured to collimate the output of the emitters and provide diffractive optical feedback to the emitters and a diffractive beam combining device is configured to spatially overlap the output wavelengths of the first emitter and at least one second emitter.
摘要翻译： 实施例涉及包括具有第一输出波长的第一发射器和具有第二输出波长的至少一个第二发射器的光源的光束组合装置。 光束调节部分被配置为对发射器的输出进行准直并向发射器提供衍射光反馈，并且衍射光束组合装置被配置为在空间上与第一发射极和至少一个第二发射极的输出波长重叠。
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公开(公告)号：US5668826A
公开(公告)日：1997-09-16
申请号：US611632
申请日：1996-03-06
申请人： Alex Bezinge , Christophe Moser , Pierre Thomann , Alain Jornod
发明人： Alex Bezinge , Christophe Moser , Pierre Thomann , Alain Jornod
CPC分类号： H01S5/02212 , H01S5/0687 , H03L7/26 , H01S3/1303 , H01S5/005 , H01S5/02415
摘要： The laser diode (11) of the electro-optical device (10) is frequency-controlled with the aid of a control module (40) comprising a rubidium cell (41) and an optical sensor (42), as well as a further module (43) for controlling the injection current and/or the temperature of the laser diode. A controlling light beam (18) is conveyed by means of a multi-mode optical fiber (14) to the rubidium cell. The optical sensor measures the intensity of the light beam transmitted by the rubidium cell and supplies a signal used by the further module for regulating the injection current and/or the temperature of the laser diode so as to stabilize the frequency of the light (16) emitted. The optical fiber is coupled to the laser module in such a way as to collect part of the light (16, 21) emitted by the front face of the laser diode and reflected by a lens (12) in front of the laser diode. The diode-lens assembly is heat controlled. Feedback in the laser diode and the power supplied to the laser diode are reduced, and the control device is simplified. The device finds application particularly in interferometry, atomic frequency oscillators, spectroscopy, and fiber optics data transmission.
摘要翻译： 电光装置（10）的激光二极管（11）借助于包括铷电池（41）和光传感器（42）的控制模块（40）以及另一模块 （43），用于控制激光二极管的注入电流和/或温度。 控制光束（18）通过多模光纤（14）传送到铷电池。 光学传感器测量由铷电池传输的光束的强度，并提供由另外的模块使用的用于调节激光二极管的注入电流和/或温度的信号，以便稳定光（16）的频率， 发射。 光纤以这样的方式耦合到激光器模块，以便收集由激光二极管的正面发射并由激光二极管前面的透镜（12）反射的一部分光（16,21）。 二极管透镜组件是热控制的。 减少了激光二极管的反馈和提供给激光二极管的功率，简化了控制装置。 该器件特别适用于干涉测量，原子频率振荡器，光谱学和光纤数据传输。
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公开(公告)号：US09097896B2
公开(公告)日：2015-08-04
申请号：US13115075
申请日：2011-05-24
申请人： Christophe Moser , Frank Havermeyer
发明人： Christophe Moser , Frank Havermeyer
CPC分类号： G02B27/0927 , G02B5/1823 , G02B5/32 , G02B27/0944
摘要： The invention disclosed here teaches methods and apparatus for altering the temporal and spatial shape of an optical pulse. The methods correct for the spatial beam deformation caused by the intrinsic DC index gradient in a volume holographic chirped reflective grating (VHCRG). The first set of methods involves a mechanical mean of pre-deforming the VHCRG so that the combination of the deflection caused by the DC index gradient is compensated by the mechanical deformation of the VHCRG. The second set of methods involves compensating the angular deflection caused by the DC index gradient by retracing the diffracted beam back onto itself and by re-diffracting from the same VHCRG. Apparatus for temporally stretching, amplifying and temporally compressing light pulses are disclosed that rely on the methods above.
摘要翻译： 这里公开的发明教导了用于改变光脉冲的时间和空间形状的方法和装置。 该方法校正了体积全息啁啾反射光栅（VHCRG）中由本征DC指数梯度引起的空间光束变形。 第一组方法涉及到使VHCRG预变形的机械平均值，使得由DC指数梯度引起的偏转的组合由VHCRG的机械变形补偿。 第二组方法包括通过将衍射光束回射回自身并通过从相同的VHCRG重新衍射来补偿由DC折射率梯度引起的角度偏转。 公开了依赖于上述方法的用于暂时拉伸，放大和时间压缩光脉冲的装置。
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公开(公告)号：US07221491B2
公开(公告)日：2007-05-22
申请号：US11406452
申请日：2006-04-18
IPC分类号： G02B5/32
CPC分类号： G02B5/32
摘要： Narrow-line holographic filters that can include a plurality of lines and that can be structured to provide a large aperture device. Materials that can be used to construct filters include glasses, photorefractive crystals such as lithium niobate and photorefractive thick polymers. The filters are fabricated by assembling a plurality of elements having the same one or more narrow line holographic filter patterns written thereon, in mutual orientation such that each element has a surface defined by a length and a width adjacent a corresponding surface of a neighboring element, and has a surface defined by a thickness and one of a length and a width accessible to impinging illumination. Filters exhibiting a plurality of characteristic narrow lines, and having arbitrarily large apertures can be fabricated. Methods of fabricating and using the filters are described.
摘要翻译： 窄线全息滤光器，其可以包括多条线，并且可以被构造成提供大孔设备。 可用于构建过滤器的材料包括玻璃，光折变晶体如铌酸锂和光折射厚聚合物。 滤波器是通过组合具有相互取向的相同一个或多个窄线全息滤光片图案的多个元件来制造的，使得每个元件具有由相邻元件的相应表面相邻的长度和宽度限定的表面， 并且具有由厚度和冲击照明可访问的长度和宽度之一限定的表面。 可以制造具有多个特征窄线并且具有任意大的孔径的滤波器。 描述制造和使用过滤器的方法。
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