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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。
    • 4. 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。
    • 7. 发明授权
    • Multiwavelength source
    • 多波长源
    • US06507597B1
    • 2003-01-14
    • US09453410
    • 1999-12-03
    • Philippe GraindorgePhilippe MartinBernard LalouxHervé Lefevre
    • Philippe GraindorgePhilippe MartinBernard LalouxHervé Lefevre
    • H01S308
    • H01S5/141H01S5/143H01S5/4062H01S5/4087
    • Multiwavelength laser source transmitting a luminous flux including as many amplifier wave-guides as potential transmission wavelengths, a collimation optic system for collimating the beams transmitted by the wave-guides, a network and a retroreflector making up the network, a dispersive retroreflecting device that defines with each wave-guide, an external resonating cavity, whereas each wave-guide has an inner face and an outer face with respect to its associated cavity. A Fabry-Perot interferometer with reduced fine adjustment is placed in the cavity between the collimation optic system and the network, whereby the interferometer is tilted with respect to the axis of the cavity and forms a little selective filter, whose variation law of the wavelength transmitted in relation to the angle of incidence is identical with that of the dispersive retroreflecting device.
    • 多波长激光源传输包括与潜在透射波长一样多的放大器波导的光通量,用于准直由波导发射的波束的准直光学系统,构成网络的网络和后向反射器,分光回射装置,其定义 每个波导都具有外部谐振腔,而每个波导相对于其相关腔具有内表面和外表面。 具有减小的微调的法布里 - 珀罗干涉仪被放置在准直光学系统和网络之间的空腔中,由此干涉仪相对于腔的轴线倾斜并形成一个小的选择性滤光器,其波长的变化规律被传输 相对于入射角与分散回射装置的入射角相同。