会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 1. 发明授权
    • Process for making a custom phase-conjugated circular mirror to be used
in a laser resonator that will suit specifications of a user and a
custom phase-conjugated circular mirror made according to the process
    • 制造用于激光谐振器的定制相位共轭圆形反射镜的方法,其适合用户规格和根据该过程制造的定制的相位共轭圆形反射镜
    • US5255283A
    • 1993-10-19
    • US906358
    • 1992-06-30
    • Pierre-Andre BelangerClaude PareRichard L. LachanceRichard Van Neste
    • Pierre-Andre BelangerClaude PareRichard L. LachanceRichard Van Neste
    • H01S3/10H01S3/08
    • H01S3/10076
    • A process for making a custom phase-conjugated circular mirror to be used in a laser resonator that will suit specifications of a user is provided. The mirror reverses wavefront of one particular input beam .PSI..sub.o (x) determined by the user, the input beam .PSI..sub.o (x) having a given wavelength, the laser resonator including the mirror and an output coupler cooperating with the mirror and separated therefrom by a laser gain medium, the mirror being at a distance L from the output coupler. The process comprises steps of (a) determining the input beam .PSI..sub.o (x) that will suit need of the user; (b) calculating equation of .PSI..sub.L (x) which is a value of the input beam .PSI..sub.o (x) that is propagated through said laser gain medium at distance L; (c) calculating phase .PHI..sub.o (x) of the input beam, which is a phase of the input beam .PSI..sub.o (x) at distance L, the phase .PHI..sub.o (x) determining profile of the custom phase-conjugated mirror; and (d) fabricating the custom phase-conjugated mirror according to the profile determined in step (c), whereby a custom phase-conjugated mirror can be provided to suit the specifications of the user. There is also provided a mirror made according to the above-mentioned method.
    • 提供了一种用于激光谐振器中使用的适合用户规格的定制相位共轭圆形反射镜的方法。 反射镜反转由用户确定的一个特定输入光束PSI o(x)的波前,具有给定波长的输入光束PSI o(x),激光谐振器包括反射镜和与反射镜配合的输出耦合器,并通过 激光增益介质,反射镜距输出耦合器距离L。 该过程包括以下步骤:(a)确定适合用户需要的输入光束PSI o(x); (b)计算作为距离L通过所述激光增益介质传播的输入光束PSI o(x)的值的PSI L(x)的方程式; (c)计算输入光束的相位PHI o(x),其为距离L处的输入光束PSI o(x)的相位,定影相位共轭反射镜的相位PHI o(x)确定轮廓; 和(d)根据步骤(c)中确定的轮廓制造定制的相位共轭反射镜,由此可以提供符合用户规格的定制相位共轭反射镜。 还提供了根据上述方法制成的镜子。
    • 3. 发明授权
    • Apparatus for measuring a beam width D.sub..sigma.x along a transverse
direction of a laser beam and method thereof
    • 用于沿激光束的横向测量光束宽度D sigma x的装置及其方法
    • US5587786A
    • 1996-12-24
    • US393572
    • 1995-02-23
    • Yves ChampagneClaude ParePierre-Andre Belanger
    • Yves ChampagneClaude ParePierre-Andre Belanger
    • G01J1/42G01J1/00
    • G01J1/4257
    • The present invention relates to an apparatus and a method upon which the apparatus is based for direct optical measurement of first and second moments (variance) of two-dimensional continuous-wave optical beam irradiance distributions. The apparatus and method are based on an optical filter having a spatially-varying transmittance or reflectance profile described by a one-dimensional truncated parabolic function. The light power transmitted through or reflected by the optical filter is measured by a photodetector as the optical filter travels horizontally across the beam irradiance profile. The variance is obtained from the ratio of the peak signal given by the photodetector normalized to the signal corresponding to the total optical power of the unobstructed optical beam. The first moment in a fixed reference frame is given by the horizontal position of the region of peak transmittance/reflectance of the filter when the maximum signal is measured.
    • 本发明涉及一种装置和方法,在该装置和方法上,该装置基于用于直接光学测量二维连续波光束辐照度分布的第一和第二矩(方差)。 该装置和方法基于具有通过一维截断抛物线函数描述的空间变化的透射率或反射率分布的滤光器。 通过光学滤波器透射或反射的光功率由光电检测器测量,因为光学滤光器水平地穿过光束辐照度轮廓。 从由光电检测器给出的峰值信号的比率获得的方差是对应于无阻碍光束的总光功率的信号进行归一化。 当测量最大信号时,固定参考系中的第一时刻由滤波器的峰值透射率/反射率的区域的水平位置给出。
    • 5. 发明申请
    • POLARIZATION-MAINTAINING OPTICAL FIBER AND METHOD FOR MANUFACTURING THE SAME
    • 极化保持光纤及其制造方法
    • US20090181842A1
    • 2009-07-16
    • US12350571
    • 2009-01-08
    • Antoine ProulxSteeve MorencyClaude Pare
    • Antoine ProulxSteeve MorencyClaude Pare
    • C03C13/04C03B37/028
    • C03B37/01217C03B2203/31G02B6/024
    • A method for manufacturing a polarization-maintaining optical fiber is provided. The method includes (a) making a fiber preform by providing in an over-cladding tube: a core rod having an inner core and a cladding surrounding the inner core; at least one stress-applying part (SAP) disposed adjacent to the core rod along an outer periphery of the cladding thereof and having a coefficient of thermal expansion different from that of the cladding; inner filler rods arranged along the outer periphery of the core rod at positions where the SAP is not disposed and having a coefficient of thermal expansion different from that of the SAP; and a plurality of outer filler rods arranged adjacent the over-cladding tube between the over-cladding tube and inner filler rods, SAP and core rod, and consisting of a same material as the over-cladding tube; and (b) drawing the fiber preform to obtain the optical fiber.
    • 提供一种制造偏振保持光纤的方法。 该方法包括:(a)通过在外包层管中设置纤维预成型件:具有内芯和围绕内芯的包层的芯棒; 至少一个应力施加部分(SAP),沿其包层的外周设置在所述芯棒附近,并且具有与所述包层不同的热膨胀系数; 内填料杆沿着芯棒的外周排列在SAP未被设置并且具有不同于SAP的热膨胀系数的位置; 以及多个外填充棒,其布置在外包层管和内填充棒SAP和芯棒之间的外包层管附近,并由与外包层管相同的材料构成; 和(b)拉伸纤维预制件以获得光纤。
    • 8. 发明授权
    • Optical fiber polarimetric chemical sensor with modulated injection of sample fluid
    • 具有调制注射样品液的光纤偏振化学传感器
    • US08574920B2
    • 2013-11-05
    • US13182974
    • 2011-07-14
    • Serge CaronClaude Pare
    • Serge CaronClaude Pare
    • G01N21/00G01N30/02G02B6/00G01N7/00
    • G01N30/74G01N21/0303G01N21/05G01N21/21G01N2021/0346G01N2030/746
    • An optical fiber polarimetric chemical sensor for capillary gas chromatography in which a sample fluid is injected into a capillary in the form of a periodic pulse train. Each individual pulse defines a moving polarization coupling zone that affects the polarization state of the light propagating in a birefringent optical waveguide that includes the capillary. The spacing between consecutive coupling zones can be made equal to the polarization beat length of the waveguide when the injection frequency of the pulses is properly selected, thus defining a resonance condition for a given analyte. The contributions of the successive coupling zones present along the length of the capillary then add up in phase, thus resulting in a detected optical signal having an enhanced amplitude peak at the injection frequency. In this manner, the sensitivity can be enhanced.
    • 一种用于毛细管气相色谱的光纤偏振化学传感器,其中将样品流体以周期性脉冲串的形式注入到毛细管中。 每个单独的脉冲限定影响在包括毛细管的双折射光波导中传播的光的偏振态的移动极化耦合区。 当脉冲的注入频率被适当选择时,连续耦合区之间的间距可以等于波导的极化波长长度,从而为给定的分析物定义共振条件。 沿着毛细管长度存在的连续耦合区的贡献随同时相加,从而导致检测到的光信号在注入频率处具有增强的振幅峰值。 以这种方式,可以提高灵敏度。