专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US06611546B1 Optical transmitter comprising a stepwise tunable laser 有权
标题翻译：光发射机包括逐步可调激光器
公开(公告)号：US06611546B1
公开(公告)日：2003-08-26
申请号：US09930841
申请日：2001-08-15
申请人： Arnaud Garnache , Daniele Romanini , Frederic Stoeckel , Alexandre Katchanov , Guido Knippels , Barbara Paldus , Christopher Rella , Bruce Richman , Marc Levenson
发明人： Arnaud Garnache , Daniele Romanini , Frederic Stoeckel , Alexandre Katchanov , Guido Knippels , Barbara Paldus , Christopher Rella , Bruce Richman , Marc Levenson
IPC分类号： H01S308
CPC分类号： H01S5/02288 , H01S3/1062 , H01S5/0217 , H01S5/041 , H01S5/0687 , H01S5/141 , H01S5/18361 , H01S5/18375 , H01S5/18377
摘要： An optical fiber transmitter for emitting an information-carrying laser beam comprises an optically or electrically pumped single mode MQW (multi quantum well) semiconductor amplifying mirror as a gain medium and a separate external reflector to form a cavity. The external cavity length defines a comb of optical modes, all or a subset of which corresponding to channel wavelengths of an optical telecommunications system having plural optical channels. The semiconductor gain element has a homogeneously broadened gain region; a tuning arrangement tunes the laser from mode to mode across the gain region thereby selecting each one of the plural optical channels. When the maximum gain bandwidth is less than mode-to-mode spacing defined by the cavity, that tuning arrangement comprises a means of altering the temperature of the amplifying mirror, thereby translating the frequency of the gain peak from one mode to another. An optical modulator adds modulation to a beam emitting from the laser to provide the information-carrying laser beam, and a coupler couples the information-carrying laser beam into an optical fiber of the optical telecommunications system. A calibration method based on detecting inter-mode optical transitions (mode hopping) is described. The parameters of the amplifying mirror and tuning arrangement can be adjusted during operation to switch quickly from one cavity mode to another in stepwise fashion.
摘要翻译：用于发射信息载体的激光束的光纤发射器包括光学或电泵浦的单模MQW（多量子阱）半导体放大镜作为增益介质和单独的外部反射器以形成空腔。外部空腔长度定义了光学模式梳，其全部或一部分对应于具有多个光学通道的光通信系统的通道波长。半导体增益元件具有均匀加宽的增益区域; 调谐装置将激光从模式调谐到增益区域，从而选择多个光通道中的每一个。当最大增益带宽小于由空腔限定的模 - 模间隔时，该调谐装置包括改变放大镜的温度的装置，从而将增益峰值的频率从一种模式转换到另一种模式。光调制器向从激光器发射的光束增加调制以提供信息传送激光束，并且耦合器将信息传送激光束耦合到光通信系统的光纤中。描述了基于检测模式间转换（跳频）的校准方法。在操作期间可以调节放大镜和调谐装置的参数，以逐步的方式从一个腔模式快速切换到另一腔模式。

2. 发明授权

US5705816A Process and device for analyzing traces of impurities in a gas sample by means of a diode laser 失效
标题翻译：用于通过二极管激光分析气体样品中杂质痕迹的工艺和装置
公开(公告)号：US5705816A
公开(公告)日：1998-01-06
申请号：US634725
申请日：1996-04-19
申请人： Catherine Ronge , Fabrice Bounaix , Patrick Mauvais , Frederic Stoeckel
发明人： Catherine Ronge , Fabrice Bounaix , Patrick Mauvais , Frederic Stoeckel
IPC分类号： G01J3/42 , G01N21/35 , G01N21/39 , G01N21/25
CPC分类号： G01N21/39
摘要： The invention relates to a process for analyzing traces of at least one impurity in a gas sample, by absorption by the impurity to be detected of a light beam emitted by a semiconductor diode laser, the beam emitted by the diode being split into at least two branched beams, one called the measurement beam which passes through the gas sample to be analyzed in a multipassage cell before being focused onto a measurement photodetector, another branched beam, called the reference beam, being along a reference path and directly focused onto a reference photodetector without encountering the gas sample, in which process the gas sample is at a pressure at least equal to atmospheric pressure, and a modulation of the supply current of the diode has been introduced, which comprises at least one function of the exponential type.
摘要翻译：本发明涉及一种用于分析气体样品中痕量至少一种杂质的方法，通过被待检测的杂质吸收由半导体二极管激光器发射的光束，由二极管发射的光束被分成至少两个分支光束，一个被称为测量光束，其在被聚焦到测量光电检测器之前通过多分散单元中待分析的气体样品，称为参考光束的另一个分支光束沿着参考光路并且直接聚焦到参考光电检测器在没有遇到气体样品的情况下，气体样品处于至少等于大气压的压力，并且已经引入了二极管的供应电流的调制，其包括指数型的至少一种功能。

3. 发明授权

US06741629B1 Optical transmitter having optically pumped vertical external cavity surface emitting laser 失效
标题翻译：具有光泵浦垂直外腔表面发射激光器的光发射器
公开(公告)号：US06741629B1
公开(公告)日：2004-05-25
申请号：US09668905
申请日：2000-09-22
申请人： Arnaud Garnache , Alexandre Katchanov , Barbara Paldus , Daniele Romanini , Frederic Stoeckel
发明人： Arnaud Garnache , Alexandre Katchanov , Barbara Paldus , Daniele Romanini , Frederic Stoeckel
IPC分类号： H01S5183
CPC分类号： H01S5/02288 , H01S5/0217 , H01S5/02461 , H01S5/041 , H01S5/06804 , H01S5/0687 , H01S5/141 , H01S5/18361 , H01S5/18375 , H01S5/18377
摘要： An optical fiber transmitter comprises an optically pumped single mode MQW VECSEL for emitting an information-carrying laser beam and has an external cavity length defining a comb of optical modes, each mode corresponding to a channel wavelength of an optical telecommunications system having plural optical channels. A semiconductor structure of the VECSEL has an optical-pump-excited multiple quantum well (MQW) homogeneously broadened gain region active over a band which is less than mode-to-mode spacing, the gain region being tunable to hop from a first mode to an adjacent second mode. A tuning arrangement tunes the VECSEL from mode to mode thereby to select each one of the plural optical channels. An optical modulator adds modulation to a beam emitting from the laser to provide the information-carrying laser beam, and a coupler couples the information-carrying laser beam into an optical fiber of the optical telecommunications system. A calibration method based on detecting inter-mode optical transitions (mode hopping) is described.
摘要翻译：一种光纤发射机包括光泵浦单模MQW VECSEL，用于发射信息载体的激光束，具有定义光模梳的外腔长度，每个模式对应于具有多个光通道的光通信系统的信道波长。 VECSEL的半导体结构具有光泵浦激发的多量子阱（MQW）在比模式间距间隔小的频带上有效的均匀增宽的增益区域，该增益区域可调谐以从第一模式跳到相邻的第二模式。调谐装置将VECSEL从模式调谐到模式，从而选择多个光学通道中的每一个。光调制器向从激光器发射的光束增加调制以提供信息传送激光束，并且耦合器将信息传送激光束耦合到光通信系统的光纤中。描述了基于检测模式间转换（跳频）的校准方法。

4. 发明授权

US06711203B1 Optical transmitter comprising a stepwise tunable laser 失效
标题翻译：光发射机包括逐步可调激光器
公开(公告)号：US06711203B1
公开(公告)日：2004-03-23
申请号：US10104347
申请日：2002-03-22
申请人： Arnaud Garnache , Daniele Romanini , Frederic Stoeckel , Alexandre Katchanov , Guido Knippels , Barbara Paldus , Christopher Rella , Bruce Richman , Marc Levenson , Robert Lodenkamper
发明人： Arnaud Garnache , Daniele Romanini , Frederic Stoeckel , Alexandre Katchanov , Guido Knippels , Barbara Paldus , Christopher Rella , Bruce Richman , Marc Levenson , Robert Lodenkamper
IPC分类号： H01S500
CPC分类号： H01S5/18377 , H01S3/094084 , H01S3/105 , H01S5/0217 , H01S5/0222 , H01S5/02288 , H01S5/041 , H01S5/0687 , H01S5/141 , H01S5/183 , H01S5/18355 , H01S5/18375 , H01S2301/14
摘要： An optical fiber transmitter for emitting an information-carrying laser beam comprises an optically or electrically pumped single mode MQW (multi-quantum well) semiconductor amplifying mirror as a gain medium and a separate external reflector to form a cavity. The external cavity length defines a comb of optical modes, all or a subset of which correspond to channel wavelengths of an optical telecommunications system having plural optical channels. The semiconductor gain element has a homogeneously broadened gain region; a tuning arrangement tunes the laser from mode to mode across the gain region, thereby selecting each one of the plural optical channels. When the maximum gain bandwidth is less than mode-to-mode spacing defined by the cavity, the tuning arrangement includes a means of altering the temperature of the amplifying mirror, thereby translating the frequency of the gain peak from one mode to another. An optical modulator adds modulation to provide an information-carrying laser beam, and a coupler couples the information-carrying laser beam into an optical fiber of the optical telecommunications system. A calibration method based on detecting inter-mode optical transitions (mode hopping) is described. The parameters of the amplifying mirror and tuning arrangement can be adjusted during operation to switch quickly from one cavity mode to another in stepwise fashion.
摘要翻译：用于发射信息携带激光束的光纤发射器包括作为增益介质的光学或电泵浦单模MQW（多量子阱）半导体放大镜，以及用于形成空腔的单独的外部反射器。外部腔长度定义了光学模式梳，其全部或一部分对应于具有多个光学通道的光通信系统的通道波长。半导体增益元件具有均匀加宽的增益区域; 调谐装置将激光从模式调谐到增益区域，从而选择多个光通道中的每一个。当最大增益带宽小于由腔限定的模 - 模间隔时，调谐装置包括改变放大镜的温度的装置，从而将增益峰值的频率从一种模式转换到另一种模式。光调制器增加调制以提供信息携带激光束，并且耦合器将信息传送激光束耦合到光通信系统的光纤中。描述了基于检测模式间转换（跳频）的校准方法。在操作期间可以调节放大镜和调谐装置的参数，以逐步的方式从一个腔模式快速切换到另一腔模式。

5. 发明授权

US06476916B1 Active optical detector 失效
标题翻译：有源光检测器
公开(公告)号：US06476916B1
公开(公告)日：2002-11-05
申请号：US09509758
申请日：2000-06-21
申请人： Eric Lacot , Frederic Stoeckel
发明人： Eric Lacot , Frederic Stoeckel
IPC分类号： G01N2155
CPC分类号： H01S3/0014 , G01N21/49 , G01N21/63 , H01S5/0028 , H01S5/0608 , H01S5/0656
摘要： Disclosed is a modidied acrylic coating composition cured with melamine characterized by improved inpact resistance which comprises: An acrylic polyol dissolved in a suitable solvent to 40-90% solids; 2 to 50% by weight of said acrylic polyol subatituted with a polytrimethylene carbonate polyol selected from a polytrimethylene carbonate diol, a polytrimethylene carbonate triol, or a higher functionality polytrimethylene carbonate polyol; a melamine crosslinking agent; optionally a catalyst; and optionally pigments and other additives commonly used in coatings. Also disclosed in a related embodiment is a melamine/urea formaldehyde polytrimethylene carbonate coating composition that is prepared without acrylic.
摘要翻译：公开了一种用三聚氰胺固化的改性的丙烯酸涂料组合物，其特征在于改善的耐冲击性，其包括：将溶解在适合溶剂中的丙烯酸多元醇至40-90％固体; 用选自聚三亚甲基碳酸酯二醇，聚三亚甲基碳酸酯三醇或更高官能度的聚三亚甲基碳酸酯多元醇的聚三亚甲基碳酸酯多元醇取代的所述丙烯酸多元醇的2-50重量％三聚氰胺交联剂; 任选的催化剂; 以及通常用于涂料中的颜料和其它添加剂。在相关实施方案中还公开了不用丙烯酸制备的三聚氰胺/脲甲醛聚三亚甲基碳酸酯涂料组合物。

6. 发明授权

US5245280A Magnetic resonance magnetometer with multiplexed exciting windings 失效
标题翻译：具有多路复杂绕组的磁共振磁控计
公开(公告)号：US5245280A
公开(公告)日：1993-09-14
申请号：US712409
申请日：1991-06-10
申请人： Marc Beranger , Nelly Kernevez , Jean-Michel Leger , Frederic Stoeckel
发明人： Marc Beranger , Nelly Kernevez , Jean-Michel Leger , Frederic Stoeckel
IPC分类号： G01R33/26
CPC分类号： G01R33/26
摘要： A magnetometer having three trirectangular trihedron windings (20x, 20y, 20z) which are put into service successively by a multiplexer (50). The means frequency (F.sub.m) of the three measurement signals is independent of the orientation of the weak magnetic field which is to be measured.
摘要翻译：具有三个三角形三面体绕组（20x，20y，20z）的磁力计，其由多路复用器（50）连续投入使用。三个测量信号的平均频率（Fm）与待测量的弱磁场的方向无关。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式