公开(公告)号：US20160231120A1

公开(公告)日：2016-08-11

申请号：US15023747

申请日：2014-09-23

Applicant: IXBLUE

Inventor： Frederic GUATTARI ,  Cedric MOLUCON ,  Sebastien FERRAND ,  Eric DUCLOUX

IPC: G01C19/72 ,  G02B6/293

CPC classification number: G01C19/728 ,  G01C19/721 ,  G02B6/29347

Abstract: An interferometric system with multi-axis optical fiber and a method for processing an interferometric signal in such a system, the multi-axis interferometric system includes a light source (1); a plurality of N optical-fiber coils (11, 12), a first optical separation element (3) capable of splitting the source beam (100) into a first split beam (140) and a second split beam (240); shared phase-modulation element (4); a photodetector (2) and a signal-processing system (800). The N optical-fiber coils (11, 12) are connected in parallel, the coils having respective transit times T1, T2, . . . TN that all differ from one another, and the signal-processing system (800) is capable of processing the interferometric signal (720) detected by the shared photodetector (2) as a function of the respective transit times in the various coils.

Abstract translation: 一种具有多轴光纤的干涉测量系统和一种在这种系统中处理干涉信号的方法，所述多轴干涉测量系统包括光源（1）; 多个N个光纤线圈（11,12），能够将源光束（100）分割为第一分割光束（140）和第二分割光束（240）的第一光学分离元件（3）; 共享相位调制元件（4）; 光电检测器（2）和信号处理系统（800）。 N个光纤线圈（11,12）并联连接，线圈具有各自的传送时间T1，T2。 。 。 TN，它们彼此不同，并且信号处理系统（800）能够处理由共享光电检测器（2）检测的干涉信号（720）作为各种线圈中的相应传送时间的函数。

公开(公告)号：US20170212305A1

公开(公告)日：2017-07-27

申请号：US15324781

申请日：2015-07-06

Applicant: IXBLUE

Inventor： Pascal SIMONPIETRI ,  Stephane CHOUVIN ,  Cedric MOLUCON

IPC: G02B6/27 ,  G02B6/30 ,  G02B6/024 ,  G02B6/126 ,  G02B5/30

CPC classification number: G02B6/2706 ,  G01D5/35322 ,  G02B5/3033 ,  G02B6/024 ,  G02B6/126 ,  G02B6/2726 ,  G02B6/2766 ,  G02B6/30

Abstract: Disclosed is a waveguide polarizing optical device, including a first waveguide polarizer (6), a section of a second optical waveguide (31) and a second thin-plate polarizer (52) having a physical thickness T and a refractive index n, the second thin-plate polarizer (52) being disposed on the optical path between a waveguide end (8) of the first polarizer (6) and one end (32) of the second optical waveguide (31), the physical distance d between the waveguide end (8) of the first polarizer (6) and the end (32) of the second optical waveguide (31) being less than or equal to twice the Rayleigh length and the physical thickness T of the second polarizer (52) being less than or equal to the physical distance d.

公开(公告)号：US20160363446A1

公开(公告)日：2016-12-15

申请号：US15121620

申请日：2015-02-26

Applicant: IXBLUE

Inventor： Herve LEFEVRE ,  Frederic GUATTARI ,  Cedric MOLUCON ,  Stephane CHOUVIN

IPC: G01C19/72 ,  G01B9/02

CPC classification number: G01C19/722 ,  G01B9/02 ,  G01B2290/70 ,  G01C19/726 ,  G01C19/727

Abstract: Interferometric measurement device includes a light source emitting a source signal and optical coupling elements receiving the source signal, directing part of the latter towards a measurement pathway including a Sagnac ring interferometer, of frequency fp, producing a power output signal POUT polarized according to a first polarization direction, tapping off another part of the source signal towards a compensation pathway producing a return power compensation signal PRET, and directing the output and compensation signals towards detection elements. The compensation pathway includes polarization rotation elements producing the compensation signal according to a second cross-direction of polarization, and optical looping elements redirecting part of the compensation signal towards the measurement pathway; the detection elements include a single detector connected to the coupling elements for receiving the output signal and the compensation signal; the device further includes power equilibration elements equalizing the output power and/or return power are routed towards the detector.

Abstract translation: 干涉测量装置包括发射源信号的光源和接收源信号的光耦合元件，将光信号的一部分导向包括频率fp的Sagnac环形干涉仪的测量路径，产生根据第一个信号极化的功率输出信号POUT 偏振方向，将源极信号的另一部分朝向产生返回功率补偿信号PRET的补偿路径，并将输出和补偿信号引导到检测元件。 所述补偿路径包括根据偏振的第二交叉方向产生所述补偿信号的偏振旋转元件，以及光学环路元件将所述补偿信号的一部分重定向到所述测量路径; 检测元件包括连接到耦合元件的单个检测器，用于接收输出信号和补偿信号; 该装置还包括均衡输出功率和/或返回功率的功率平衡元件被路由到检测器。

公开(公告)号：US20170211952A1

公开(公告)日：2017-07-27

申请号：US15324967

申请日：2015-07-06

Applicant: IXBLUE

Inventor： Pascal SIMONPIETRI ,  Stephane CHOUVIN ,  Cedric MOLUCON

IPC: G01D5/353 ,  G01D5/34

CPC classification number: G01D5/35322 ,  G01C19/72 ,  G01C19/721 ,  G01C19/722 ,  G01D5/344 ,  G02B5/126 ,  G02B6/126 ,  G02B6/2726 ,  G02B6/30 ,  G02F2001/211

Abstract: Disclosed is an optical fiber interferometric system including a light source (1), a fiber optic coil (8), a coil splitter (3), a photodetector (2), and a polarization filtering unit. According to an embodiment, the polarization filtering unit includes a first waveguide polarizer (51), at least one second thin-plate polarizer (52) and an optical waveguide section (12), the at least one second polarizer (52) being disposed in the Rayleigh zone between a first waveguide end (21) of the first polarizer (51) and a second waveguide end (22) of the optical waveguide section (12).

公开(公告)号：US20160025494A1

公开(公告)日：2016-01-28

申请号：US14774540

申请日：2014-03-10

Applicant: IXBLUE

Inventor： Herve LEFEVRE ,  Frederic GUATTARI ,  Cedric MOLUCON ,  Joachin HONTHAAS ,  Eric DUCLOUX ,  Jean-Jacques BONNEFOIS

IPC: G01C19/72

CPC classification number: G01C19/727

Abstract: A fibre-optic interferometric measurement device (100) intended to measure a physical parameter (QR), includes: a wide-spectrum light source (103); a SAGNAC fibre-optic interferometer (110), in which there propagate two counter-propagating light waves (101, 102) including measurement elements (1140) sensitive to the physical parameter that results in a non-reciprocal phase difference Δφρ between the two light waves; and a detector (104) delivering an electric signal representative of the physical parameter. The measurement elements include a ring resonator (1143) in transmission mode including a first coupler (1141) and a second coupler (1142) respectively, which couple a first arm (111) and a second arm (112) respectively of the SAGNAC interferometer to the ring resonator, in such a way that the two light waves travel in opposing directions of travel (1143H, 1143AH).

Abstract translation: 旨在测量物理参数（QR）的光纤干涉测量装置（100）包括：宽光源（103）; SAGNAC光纤干涉仪（110），其中传播包括对物理参数敏感的测量元件（1140）的两个反向传播光波（101,102），该物理参数导致不可逆相位差＆Dgr;＆rgr ; 两个光波之间; 以及传送代表物理参数的电信号的检测器（104）。 测量元件包括传输模式中的环形谐振器（1143），其包括分别将SAGNAC干涉仪的第一臂（111）和第二臂（112）分别耦合到第一耦合器（1141）和第二耦合器（1142） 环形谐振器以这样的方式使得两个光波在相反的行进方向（1143H，1143AH）上行进。