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    • 2. 发明授权
    • Optical fibre hydrophone
    • 光纤水听器
    • US4536861A
    • 1985-08-20
    • US583644
    • 1984-02-27
    • Philippe GraindorgeHerve Arditty
    • Philippe GraindorgeHerve Arditty
    • H04R23/00G01H9/00G01S7/521G02B6/00H04R1/44H04R17/00
    • G01H9/004
    • The invention relates to a monomodal optical fibre hydrophone operating by elastooptical effect, which has an interferometer structure comprising a measuring arm, in which is arranged a very long monomodal optical fibre immersed in the interaction medium in which propagates the soundwave. A phase displacement is induced by an elastooptical effect on the soundwave propagating in the fibre, by a soundwave producing an acoustic pressure field in said medium. A reference arm establishes a reference optical path and the phase displacement, linked with the sound wave, is detected by interferometry between the two optical waves coming from these two arms. This two-armed interferometer is terminated by a photorefractive medium used as an interactive reflector in accordance with the four-wave interferometry principle.
    • 本发明涉及一种通过弹性光学效应操作的单模光纤水听器,其具有包括测量臂的干涉仪结构,其中布置有浸入传播声波的相互作用介质中的非常长的单模光纤。 通过在所述介质中产生声压场的声波,通过弹性光学效应对在光纤中传播的声波产生相位移动。 参考臂建立参考光路,并且通过来自这两个臂的两个光波之间的干涉测量来检测与声波相关的相位位移。 这种双臂干涉仪由根据四波干涉测量原理的用作交互式反射器的光折射介质终止。
    • 5. 发明授权
    • Method for positioning an object relative to a plane and measuring
length and apparatus for implementing same
    • 用于相对于平面定位物体并测量长度的方法以及用于实现其的装置
    • US4994677A
    • 1991-02-19
    • US349223
    • 1989-05-09
    • Philippe Graindorge
    • Philippe Graindorge
    • G01B11/14G01B11/02G05D3/12
    • G01B11/028
    • A method of positioning an object relative to a plane, and apparatus therefor. According to the method, the plane is swept by the axis of a light-beam between a source assembly and a detection assembly, and the object is translated approximately perpendicularly to the plane, the detection assembly emitting a signal representative of the light received and therefore, the position of the object relative to the plane. The signal emitted by the detection assembly is measured as a function of time, the translation of the object being halted when the signal has a particular form. The particular form of the signal corresponds to the position of the object in which the shoulder masks a predetermined fixed part of the light-beam during part of its sweep. The apparatus comprises the source assembly for producing the light-beam, a deflecting member for angularly deflecting the light-beam, a first optical system for causing the deflected light-beam to sweep a plane parallel to the light-beam, the detection assembly, a second optical system for focusing the deflected light-beam onto the detection assembly. An electronic processor processes the signal emitted by the detection assembly as a function of time. The deflecting member is placed at the focus of the first optical system and the detection assembly is placed at the focus of the second optical system.
    • 相对于平面定位物体的方法及其装置。 根据该方法,平面被源组件和检测组件之间的光束的轴线扫过,并且物体大致垂直于该平面平移,检测组件发射代表所接收的光的信号,因此 ,物体相对于飞机的位置。 由检测组件发出的信号作为时间的函数被测量,当信号具有特定形式时被暂停的对象的平移。 信号的特定形式对应于在其扫描的一部分期间肩部遮蔽光束的预定固定部分的物体的位置。 该装置包括用于产生光束的源组件,用于角度地偏转光束的偏转构件,用于使偏转的光束扫掠平行于光束的平面的第一光学系统,检测组件, 用于将偏转的光束聚焦到检测组件上的第二光学系统。 电子处理器将由检测组件发出的信号作为时间的函数进行处理。 偏转构件被放置在第一光学系统的焦点处,并且检测组件被放置在第二光学系统的焦点处。
    • 9. 发明授权
    • Partly reflecting optical component and laser source incorporating such a component
    • 部分反射光学元件和包含这种部件的激光源
    • US06529327B1
    • 2003-03-04
    • US09605533
    • 2000-06-29
    • Philippe Graindorge
    • Philippe Graindorge
    • G02B518
    • H01S5/141G02B5/122G02B27/144H01S5/143
    • A partially reflecting optical component (11) generating, from an incident beam (12), two secondary beams, one of them being reflected (13), the other one being transmitted (14). According to the invention, it comprises a first wholly reflecting planar face (15) and a second partially reflecting planar face (16), the second face being perpendicular to the first one, a third wholly reflecting planar face (17), the first and third faces being in the same plane, this component providing the unidimensional auto-alignment of the reflected beam (13) with the incident beam (12), the respectively transmitted and reflected beams being each formed with two half-beams having matching wave fronts. The invention also relates to an external cavity laser source comprising such a component as a unidimensional auto-aligned reflector.
    • 一个从入射光束(12)产生的二个次级光束的一部分反射光学部件(11),其中一个被反射(13),另一个被传输(14)。 根据本发明,它包括第一全反射平面(15)和第二部分反射平面(16),第二面垂直于第一面,第三完全反射平面(17),第一和 第三面位于同一平面内,该部件提供反射光束(13)与入射光束(12)的一维自动对准,分别透射和反射的光束各自形成有具有匹配波前的两个半波束。 本发明还涉及一种外腔激光源,其包括作为一维自对准反射器的这种部件。