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1. 发明授权

EP3019826B1 INTEGRIERT-OPTISCHER KOPPLER UND FASEROPTISCHES SYSTEM MIT EINEM SOLCHEN INTEGRIERT-OPTISCHEN KOPPLER 有权
公开(公告)号：EP3019826B1
公开(公告)日：2018-10-10
申请号：EP14734006.1
申请日：2014-06-30
申请人： Northrop Grumman LITEF GmbH
发明人： VOIGT, Sven , ZIMMERMANN, Steffen
IPC分类号： G01C19/72 , G02B6/42
CPC分类号： G01C19/722 , G01C19/721 , G01C19/725 , G02B6/024 , G02B6/30 , G02B6/4213

2. 发明公开

EP2743640A3 Broadband fiber light source with high wavelength stability under radiation for ifog applications 有权转让
标题翻译：宽带光纤光源，在辐射下具有高波长稳定性，适用于ifog应用
公开(公告)号：EP2743640A3
公开(公告)日：2017-12-20
申请号：EP13191480.6
申请日：2013-11-04
申请人： Honeywell International Inc.
发明人： Qiu, Tiequn , Sanders, Steven J.
IPC分类号： H01S3/067 , H01S3/00 , H01S3/094 , G01C19/72 , H01S3/13
CPC分类号： H01S3/067 , G01C19/721 , H01S3/0014 , H01S3/06704 , H01S3/06795 , H01S3/094003 , H01S3/094023 , H01S3/094049 , H01S3/094053 , H01S3/1301 , H01S3/1305
摘要： A rare-earth-doped-fiber light source with wavelength stability includes a rare-earth doped fiber and an undoped fiber placed in proximity to each other and having the same host material and the same cross-sectional structure, a coupler configured to direct a first portion of pump power from a pump laser to the undoped fiber so the first portion of pump power was twice passed through the coupler; and a wavelength division multiplexer configured to input a second portion of pump power from the pump laser to the rare-earth doped fiber. The rare-earth doped fiber is an active medium for the broadband light source and includes a fiber core doped with rare-earth ions. The undoped fiber includes a rare-earth-dopant-free fiber core. The length of the undoped fiber is one of the same as that of the doped fiber or optimized to match a radiation sensitivity of the doped fiber.
摘要翻译：一种具有波长稳定性的稀土掺杂光纤光源，包括稀土掺杂光纤和非掺杂光纤，所述稀土掺杂光纤和非掺杂光纤彼此邻近放置，并且具有相同的主体材料和相同的横截面结构;耦合器，被配置为引导泵浦功率的第一部分从泵浦激光器输入到未掺杂的光纤，因此泵浦功率的第一部分两次通过耦合器; 以及波分多路复用器，被配置为将来自泵浦激光器的泵浦功率的第二部分输入到稀土掺杂光纤。稀土掺杂光纤是用于宽带光源的有源介质，并且包括掺杂有稀土离子的纤芯。未掺杂的光纤包括无稀土掺杂剂的光纤芯。未掺杂光纤的长度与掺杂光纤的长度相同或最优化以匹配掺杂光纤的辐射灵敏度。

3. 发明授权

EP2995978B1 SYSTEM AND METHOD FOR REDUCING COHERENT BACKSCATTER IN A STITCHED WAVEGUIDE INTEGRATED OPTIC CIRCUIT 有权
标题翻译：用于减少缝合波导集成光路中的相干背散射的系统和方法
公开(公告)号：EP2995978B1
公开(公告)日：2017-08-23
申请号：EP15183981.8
申请日：2015-09-05
申请人： Honeywell International Inc.
发明人： LEWIS, Jeffrey Earl
IPC分类号： G02B6/125 , G01C19/72 , G02B6/134
CPC分类号： G01C19/721 , G01C19/64 , G01C19/72 , G02B6/125 , G02B6/1342 , G02F1/0136 , G02F1/225
摘要： An integrated optical circuit comprises a first waveguide section of a first material having a first index of refraction, a second waveguide section diffused with a second material, different from the first material, the second waveguide section having a second index of refraction; and a third waveguide section of the first material. A portion of the first waveguide section at a first interface is angled at a first angle and a portion of the second waveguide section is angled at the first angle. A portion of the first waveguide section at a second interface is angled at a second angle and a portion of the third waveguide section is angled at the second angle. The first angle and second angle are selected such that the angle of incidence of light at the first and second interfaces is greater than the Brewster's angle.
摘要翻译：集成光路包括具有第一折射率的第一材料的第一波导段，用不同于第一材料的第二材料漫射的第二波导段，第二波导段具有第二折射率; 和第一材料的第三波导部分。第一界面处的第一波导部分的一部分以第一角度成角度并且第二波导部分的一部分以第一角度成角度。第二界面处的第一波导部分的一部分以第二角度成角度，并且第三波导部分的一部分以第二角度成角度。第一角度和第二角度被选择成使得在第一和第二界面处的光的入射角大于布儒斯特角。

4. 发明公开

EP2762833A3 Fiber optic gyroscope mixed signal application specific integrated circuit 有权转让
标题翻译：应用程序特定的与光纤陀螺仪的混合信号集成电路
公开(公告)号：EP2762833A3
公开(公告)日：2016-06-29
申请号：EP14151827.4
申请日：2014-01-20
申请人： Honeywell International Inc.
发明人： Croker, Chuck , Keith, Gregory W. , Tarleton, Norman Gerard
IPC分类号： G01C19/72 , G06F17/50
CPC分类号： G01C19/662 , G01C19/721 , G06F17/5045
摘要： A system comprising a fiber optic gyroscope and a mixed signal application specific integrated circuit (ASIC) connected to the gyroscope is provided. The mixed signal ASIC comprises a digital logic unit, a relative intensity noise (RIN) analog-to-digital converter (ADC) coupled to the digital logic unit and configurable to receive a signal from a RIN detector, and a rate ADC coupled to the digital logic unit and configurable to receive a signal from a rate detector. The mixed signal ASIC also includes a light source digital-to-analog converter (DAC) coupled to the digital logic unit, and a thermo-electric cooler DAC coupled to the digital logic unit, both of which are configurable to send control signals to a light source of the gyroscope. The mixed signal ASIC further includes an integrated optical chip DAC, an eigen-frequency servo DAC, and a heater servo DAC, all of which are coupled to the digital logic unit.

5. 发明公开

EP2940425A1 Systems and methods for an intensity stabilized resonator fiber optic gyroscope 审中-公开
标题翻译： Resonator glasfasergyroskop系统和Verfahrenfüreinintensitätsstabilisiertes
公开(公告)号：EP2940425A1
公开(公告)日：2015-11-04
申请号：EP15155291.6
申请日：2015-02-16
申请人： Honeywell International Inc.
发明人： Sanders, Glen A. , Strandjord, Lee K. , Wu, Jianfeng , Qiu, Tiequn
IPC分类号： G01C19/72
CPC分类号： G01C19/727 , G01C19/721
摘要： Systems and methods for an intensity stabilized resonator fiber optic gyroscope are provided. In one embodiment, a method for providing optical intensity stabilization system for a resonator fiber optic gyroscope (RFOG) is provided. The method comprises: injecting a phase modulated light beam into a fiber optic ring resonator coil; measuring a DC component of the phase modulated light beam at an output of the fiber optic ring resonator coil; generating a feedback control signal based on the DC component; and attenuating the phase modulated light beam prior to injection into the fiber optic ring resonator coil by controlling a variable optical attenuator with the feedback control signal.
摘要翻译：提供了用于强度稳定的谐振器光纤陀螺仪的系统和方法。在一个实施例中，提供了一种用于提供谐振器光纤陀螺仪（RFOG）的光强度稳定系统的方法。该方法包括：将相位调制光束注入到光纤环形谐振器线圈中; 在光纤环形谐振器线圈的输出处测量相位调制光束的直流分量; 基于DC分量生成反馈控制信号; 以及通过利用所述反馈控制信号控制可变光衰减器，在将所述相位调制光束注入所述光纤环形谐振器线圈之前进行衰减。

6. 发明公开

EP2896934A1 Systems and methods for controlling the gas conversion in a fiber-optic gyroscope 审中-公开
标题翻译：在einem faseroptischen Gyroskop系统和Verfahren zur Steuerung der Gasumwandlung
公开(公告)号：EP2896934A1
公开(公告)日：2015-07-22
申请号：EP15150544.3
申请日：2015-01-08
申请人： Honeywell International Inc.
发明人： Chappell, Charles D. , Warrensford, Kara L.
IPC分类号： G01C19/72
CPC分类号： G01C19/722 , G01C19/721
摘要： A fiber optic sensing coil apparatus for a fiber optic gyroscope is provided. In at least one embodiment, the fiber optic sensing coil apparatus comprises a housing providing a hermetically sealed chamber and an optical fiber disposed within the hermetically sealed chamber of the housing, wherein the optical fiber is disposed in a coil. A gas including oxygen is disposed in the hermetically sealed chamber between the coil of the optical fiber and the housing. Moreover, an adhesive is amongst the optical fiber, wherein the adhesive holds the optical fiber together in the coil; and, a layer of oxygen blocking material is disposed on an outer surface of the coil of optical fiber, wherein the oxygen blocking material has an oxygen transmission rate less than 15 cc/m 2 /day.
摘要翻译：提供了一种用于光纤陀螺仪的光纤感测线圈装置。在至少一个实施例中，光纤感测线圈装置包括提供气密密封室的壳体和设置在壳体的气密密封室内的光纤，其中光纤设置在线圈中。包含氧的气体设置在光纤的线圈和壳体之间的气密密封室中。此外，粘合剂在光纤之间，其中粘合剂将光纤保持在线圈中; 并且在光纤线圈的外表面上设置一层氧阻塞材料，其中氧气阻挡材料的氧气透过率小于15cc / m 2 /天。

7. 发明公开

EP2878922A3 Resonant fiber optic gyroscopes with multi-core transport fiber 有权转让
标题翻译：谐振光纤陀螺仪，多芯光纤传输
公开(公告)号：EP2878922A3
公开(公告)日：2015-06-10
申请号：EP14192143.7
申请日：2014-11-06
申请人： Honeywell International Inc.
发明人： Qiu, Tiequn , Sanders, Glen A. , Strandjord, Lee K.
IPC分类号： G01C19/72 , G02B6/02
CPC分类号： G01C19/721 , G01C19/727 , G02B6/02042 , G02B6/262
摘要： A multi-core transport system for a resonant fiber optic gyroscope (100) is provided. The transport system has a transport fiber (102, 302, 402, 502) configured to transmit a clockwise signal and a counterclockwise signal, wherein the transport fiber (102, 302, 402, 502) has at least a first core (202) and a second core (204). The first core (202) and second core (204) are configured such that when the first core (202) imparts a first effect on the clockwise signal, the second core (204) imparts a second effect on the counterclockwise signal, wherein the second effect substantially mirrors the first effect. The system further comprises a first coupler (312, 412, 512) configured to optically couple the clockwise signal to the first core (202), and the counterclockwise signal to the second core (204); and a second coupler (314, 414, 514) configured to optically couple the clockwise signal from the first core (202) to a resonator (110), and the counterclockwise signal from the second core (204) to the resonator (110).

8. 发明公开

EP2850389A1 SYSTÈME DE MESURE INTERFÉROMÉTRIQUE À FIBRE OPTIQUE ET SYSTÈME INERTIEL DE GUIDAGE OU DE NAVIGATION COMPRENANT UN TEL SYSTÈME DE MESURE INTERFÉROMÉTRIQUE 有权转让
标题翻译：与光纤和INERTIALFÜHRUNGS-或导航系统这样的干涉测量系统的干涉仪系统
公开(公告)号：EP2850389A1
公开(公告)日：2015-03-25
申请号：EP13727296.9
申请日：2013-05-15
申请人： Ixblue
发明人： GUATTARI, Frédéric , MOLUCON, Cédric , DUCLOUX, Eric
IPC分类号： G01C19/72
CPC分类号： G01C19/721
摘要： The present invention relates to an optical fibre interferometric measurement system with comprising a light source; a first optical transmission means and a second optical transmission means; first and second Sagnac-ring interferometers, respectively, comprising first and second coils of optical fibre, and ,respectively, having the lengths of
L
1 and
L
2 ,; and first and second individual integrated optical circuits, respectively, connected to the first and second optical transmission means, as well as to the two ends of the first and second coils of optical fibre, respectively. According to the invention, the interferometric system comprises a multiple integrated optical circuit integrating, on a single substrate, the first individual integrated optical circuit and the second individual integrated optical circuit, and the difference M between the optical length Δ
l of the first optical transmission means and the optical length
l
1 of the second optical transmission means is higher than the maximum of Δ
Nb
1 x
L
1 and Δ
Nb
2 x
L
2 , in which Δ
Nb
1 and Δ
Nb
2 , respectively, are the difference in the group birefringence index of the first and second coils of optical fibre, respectively.

9. 发明公开

EP2841877A1 DISPOSITIF DE MESURE À FIBRE OPTIQUE, GYROMÈTRE, CENTRALE DE NAVIGATION ET DE STABILISATION INERTIELLE 有权转让
标题翻译：光纤测量装置，并打开KREISELTRÄGHEITSSTABILISIERUNGS-和导航装置
公开(公告)号：EP2841877A1
公开(公告)日：2015-03-04
申请号：EP13723874.7
申请日：2013-04-25
申请人： Ixblue
发明人： LEFEVRE, Hervé , GUATTARI, Frédéric , MOLUCON, Cédric , DUCLOUX, Eric , FERRAND, Sébastien
IPC分类号： G01C19/72
CPC分类号： G01C19/721 , G01C19/726 , G01C21/00
摘要： The invention relates to a fibre-optic measurement device (10) comprising a SAGNAC ring interferometer (20) having its own frequency f
p , a detector (14) and a modulation chain (30) generating a phase-shift modulation ϕ
m (t) between the two counter-propagating waves (24, 25) propagating in the ring interferometer. The invention aims to reduce measurement faults due to the linearity defects in the modulation chain of such a measurement device with optical fibre. For said reason, the invention provides a fibre-optic measurement device reducing the amplitude of the phase-shift modulation ϕ
m (t) which is the sum of a first biasing phase-shift modulation component ϕ
b1 (t) and a first counter-reaction phase-shift modulation component ϕ
cr1 (t), said phase-shift modulation ϕ
m (t) falling or rising by twice the amplitude of the first biasing phase-shift modulation component ϕ
b1 (t). The invention also relates to a rate gyro comprising such a measurement device and to an inertial stabilisation or navigation unit including at least one such rate gyro.

10. 发明授权

EP1595179B1 DIGITALER PHASENMODULATOR HOHER AUFLÖSUNG FÜR EINE FASEROPTISCHE SIGNALÜBERTRAGUNGS- ODER MESSEINRICHTUNG 有权
标题翻译：数字相位调制器以高分辨率和光纤信号或设备
公开(公告)号：EP1595179B1
公开(公告)日：2013-01-09
申请号：EP04712544.8
申请日：2004-02-19
申请人： Northrop Grumman LITEF GmbH
发明人： SPAHLINGER, Günter , NEWZELLA, Alfons , VOIGT, Sven
IPC分类号： G02F1/035 , G01C19/72
CPC分类号： G02F1/0316 , G01C19/721 , G02F1/011 , G02F2201/122 , G02F2203/50

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