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1. 发明授权

US06452680B1 Cavity ring down arrangement for non-cavity filling samples 有权
标题翻译：用于非空腔填充样品的腔环排列
公开(公告)号：US06452680B1
公开(公告)日：2002-09-17
申请号：US09497309
申请日：2000-02-03
申请人： Barbara A. Paldus , Charles Harb , Richard N. Zare , Gerard Meijer
发明人： Barbara A. Paldus , Charles Harb , Richard N. Zare , Gerard Meijer
IPC分类号： G01N2100
CPC分类号： G01J3/42 , G01N21/39
摘要： Method and system for cavity ring down spectroscopic analysis of non-cavity-filling sample. An interface of a sample (gas, liquid, thin film, bulk solid, etc.) is positioned at a Brewster angle relative to a p-wave polarized light beam propagating in an optical cavity so that substantially no light beam energy is lost by reflection at the interface. The light beam cycles one or more times in the cavity for each of a sequence of selected wavelengths, is extracted from the cavity, and is analyzed to determine an absorption spectrum for the sample. The cavity, except for the sample region may be filled with a solid, optionally dielectrically active and optionally having an electrical field applied thereto to vary the solid's refractive index according to the light beam wavelength used.
摘要翻译：空腔填充样品的腔环下光谱分析方法与系统。样品（气体，液体，薄膜，体积固体等）的界面相对于在光腔中传播的p波偏振光束位于布鲁斯特角，使得基本上没有光束能量被反射损失在界面。对于所选波长序列中的每一个，光束在空腔中循环一次或多次，从空腔中提取，并且被分析以确定样品的吸收光谱。除了样品区域之外的空腔可以填充固体，任选地介电活性并且任选地具有施加到其上的电场以根据所使用的光束波长改变固体的折射率。

2. 发明授权

US1859982A Combined advertising medium and score card 失效
标题翻译：组合广告媒介和记分卡
公开(公告)号：US1859982A
公开(公告)日：1932-05-24
申请号：US52185231
申请日：1931-03-11
申请人： LEWIS PANGRATZ GEORGE , CHARLES HARB JOHN
发明人： LEWIS PANGRATZ GEORGE , CHARLES HARB JOHN
IPC分类号： G09F23/10
CPC分类号： G09F23/10

3. 发明授权

US06665320B1 Wideband tunable laser sources with multiple gain elements 失效
标题翻译：具有多个增益元件的宽带可调激光源
公开(公告)号：US06665320B1
公开(公告)日：2003-12-16
申请号：US09772452
申请日：2001-01-29
申请人： Mark A. Arbore , Charles Harb , Jeffrey D. Kmetec
发明人： Mark A. Arbore , Charles Harb , Jeffrey D. Kmetec
IPC分类号： H01S330
CPC分类号： H01S5/4062 , H01S3/1068 , H01S3/107 , H01S5/1071 , H01S5/4087
摘要： This invention provides a tunable laser in which a plurality of gain elements (e.g., semiconductor diodes) with a plurality of gain spectra are optically coupled to a splitting-combining means (e.g., a wavelength router or fiber-optic coupler) in parallel, and the splitting-combining means is in optical communication with a wavelength-selecting means (e.g., a diffraction grating optically coupled to a movable mirror). The tunable laser of the present invention further comprising an optical fiber, optically coupling the splitting-combining means to the wavelength-selecting means. The use of a plurality of distinct gain spectra greatly enhances the tuning range of the tunable laser in the present invention. Moreover, by employing a long optical fiber as a substantial portion of an external cavity, the axial-mode spacing in the laser cavity is so small that mode-hops are effectively inconsequential for practical purposes, thereby rendering the wavelength tuning to be effectively continuous in the tunable laser of the present invention. Additionally, the availability of a plurality of the gain spectra can be further exploited, so as to provide additional capabilities in wavelength selecting/tuning. As such, the present invention provides a versatile and robust tunable laser in a simple and low cost construction.
摘要翻译：本发明提供了一种可调激光器，其中具有多个增益谱的多个增益元件（例如，半导体二极管）并行地光耦合到分离组合装置（例如，波长路由器或光纤耦合器），以及分离组合装置与波长选择装置（例如，光学耦合到可移动镜的衍射光栅）光通信。本发明的可调激光器还包括光纤，将分束组合装置光耦合到波长选择装置。使用多个不同的增益谱大大增强了本发明中可调激光器的调谐范围。此外，通过使用长光纤作为外部空腔的主要部分，激光腔中的轴向间隔非常小，使得跳跃对于实际目的而言实际上无关紧要，从而使波长调谐在本发明的可调激光器。此外，可以进一步利用多个增益谱的可用性，以便在波长选择/调谐中提供额外的能力。因此，本发明以简单且低成本的结构提供了通用且鲁棒的可调激光器。

4. 发明授权

US06377350B1 Frequency sequencing using CRDS 有权
标题翻译：使用CRDS进行频率排序
公开(公告)号：US06377350B1
公开(公告)日：2002-04-23
申请号：US09497333
申请日：2000-02-03
申请人： Barbara A. Paldus , Charles Harb
发明人： Barbara A. Paldus , Charles Harb
IPC分类号： G01B902
CPC分类号： G01J3/10 , G01J3/42 , G01N21/39 , G01N2021/391
摘要： Method and system for generating a sequence of two or more light beam central frequencies. A first mirror, in an optical cavity defined by two or more mirrors, is moved to a sequence of two or more locations relative to a second mirror in the cavity. The first mirror location is dithered relative to the second mirror for each location in the sequence to produce a light beam having a dithered sequence of cavity frequencies that are related to longitudinal mode resonant frequencies for the cavity. Alternatively, frequency locking is implemented for each of the sequence of central frequencies. The light beam may be passed through a sample within the cavity for spectroscopic measurements or may be extracted from an empty cavity to provide a sequence of light beam frequencies for a subsequent application.
摘要翻译：用于产生两个或多个光束中心频率序列的方法和系统。在由两个或更多个反射镜限定的光学腔中的第一反射镜相对于腔中的第二反射镜移动到两个或更多个位置的序列。对于序列中的每个位置，第一镜位置相对于第二镜抖动，以产生具有与空腔的纵向模式共振频率相关的腔频率的抖动序列的光束。或者，针对中心频率序列中的每一个实施频率锁定。光束可以通过腔内的样品用于光谱测量，或者可以从空腔中提取以提供用于后续应用的光束频率序列。

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