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公开(公告)号：US10329196B2
公开(公告)日：2019-06-25
申请号：US15210047
申请日：2016-07-14
Applicant: OZ OPTICS, LTD.
Inventor： Omur Sezerman , Luis Andre Fernandes , Garland Best , Mi Li Ng , Saidou Kane
IPC: C03B37/012 , C03C25/6208 , G02B6/02 , C03B37/15 , B23K26/53 , B23K26/60 , G02B6/28 , G02B6/255
Abstract: There is provided a method to fabricate optical taps and waveguide devices in photonic crystal fibers and other fibers with hollow structures. The method involves a preparation step, where the hollow holes inside the fiber are collapsed or partially modified locally; and a waveguide fabrication step, where a femtosecond laser is focused inside the fiber and used to produce optical waveguides that interact in the region that was previously modified in the preparation step.
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公开(公告)号：US20180074103A1
公开(公告)日：2018-03-15
申请号：US15699051
申请日：2017-09-08
Applicant: OZ OPTICS LTD.
Inventor： Safieddin Safavi-Naeini , Shahed Shahir
CPC classification number: G01R27/32 , G01N22/00 , G01R27/06 , G01R29/0821
Abstract: A multi-view planar near-field scattering tomography system is provided herein. In one aspect the system is developed based on the reformulated signal subspace approach. Utilized for solving the electromagnetic inverse scattering problem, the signal subspace approach is reformulated.The present invention pertains to a computationally efficient approach to an electromagnetic inverse scattering-based permittivity profile estimation technique.In a second aspect, the system is developed at the millimeter-wave and THz frequency range to ensure accuracy by eliminating the multipath effects and without the need for an Anechoic chamber or water as a background medium for clinical, security, and manufacturing applications.
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13.发明授权公开(公告)号：US10697761B2
公开(公告)日：2020-06-30
申请号：US15616348
申请日：2017-06-07
Applicant: OZ OPTICS LTD.
Inventor： Omur M. Sezerman , Lufan Zou
Abstract: There is provided a system for measuring temperature and strain simultaneously utilizing Brillouin Scattering within an optical fiber. The system has a cladding, a first optical core within the cladding and a second optical core within the cladding and having a different refractive index profile and/or composition than the first core. Means to couple light into and out of said individual optical cores and/or from one optical core to the other within the fiber is provided along with means for calculating strain and temperature characteristics based on measured Brillouin frequencies for said optical cores.
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公开(公告)号：US20190302373A1
公开(公告)日：2019-10-03
申请号：US16374373
申请日：2019-04-03
Applicant: OZ Optics Ltd.
Inventor： Omur SEZERMAN , Luis Andre FERNANDES , Garland BEST , Mi Li NG , Farhana BASET
IPC: G02B6/38 , G02B6/02 , G02B6/26 , C03C25/6208
Abstract: A device including an optical tap and waveguide in the core and cladding of an optical fiber together with a glass ferrule that is angle polished to provide a reflection surface (with or without total internal reflection) that produces a reflection of the light tapped from the optical fiber to reach the bottom of the glass ferrule and propagate in a direction that is perpendicular to (or at least different than the direction of propagation close to) the axis of the optical fiber. The fiber waveguide may be created using an ultrafast fabrication method and the glass ferrule can itself be modified by the same ultrafast laser technique to further manipulate the light traveling inside.
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15.发明申请公开(公告)号：US20170268868A1
公开(公告)日：2017-09-21
申请号：US15616348
申请日：2017-06-07
Applicant: OZ OPTICS LTD.
Inventor： Omur M. Sezerman , Lufan Zou
Abstract: There is provided a system for measuring temperature and strain simultaneously utilizing Brillouin Scattering within an optical fiber. The system has a cladding, a first optical core within the cladding and a second optical core within the cladding and having a different refractive index profile and/or composition than the first core. Means to couple light into and out of said individual optical cores and/or from one optical core to the other within the fiber is provided along with means for calculating strain and temperature characteristics based on measured Brillouin frequencies for said optical cores.
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Patent Agency Ranking
16.发明授权Method and system for simultaneous measurement of strain and temperature utilizing dual core fiber 有权采用双芯光纤同时测量应变和温度的方法和系统公开(公告)号：US09568307B2
公开(公告)日：2017-02-14
申请号：US14705424
申请日：2015-05-06
Applicant: OZ Optics Ltd.
Inventor： Omur Sezerman , Lufan Zou
CPC classification number: G01B11/16 , G01B11/18 , G01D1/00 , G01D5/35364 , G01K11/32 , G01K2011/322 , G01L1/24 , G01L1/242 , G02B6/02042 , G02B6/264 , G02B6/32
Abstract: There is provided a system for measuring temperature and strain simultaneously utilizing Brillouin Scattering within an optical fiber. The system has a cladding, a first optical core within the cladding and a second optical core within the cladding and having a different refractive index profile and/or composition than the first core. Means to couple light into and out of said individual optical cores and/or from one optical core to the other within the fiber is provided along with means for calculating strain and temperature characteristics based on measured Brillouin frequencies for said optical cores.
Abstract translation: 提供了一种用于同时利用光纤内的布里渊散射测量温度和应变的系统。 该系统具有包层，包层内的第一光学核心和包层内的第二光学核心，并且具有与第一核心不同的折射率分布和/或组成。 提供了连同用于根据所述光学核的测量的布里渊频率来计算应变和温度特性的装置，用于将光耦合到和/或从光纤中的一个光纤到另一个光纤内的装置。
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公开(公告)号：US20250020511A1
公开(公告)日：2025-01-16
申请号：US18220360
申请日：2023-07-11
Applicant: OZ Optics Ltd.
Inventor： Jean-Michel Ménard , Nicolas Couture
Abstract: There is provided a system comprising a combination of a peak field booster with elements to increase spectral bandwidth and efficiency for THz generation and detection. The system is configured to achieve a high dynamic range around 3.5 THz while relying on a cost-effective NIR source, allowing the full system to be built at a lower cost and sold at a competitive price.
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公开(公告)号：US20230384647A1
公开(公告)日：2023-11-30
申请号：US18203263
申请日：2023-05-30
Applicant: OZ Optics Ltd.
Inventor： Mamoun Wahbeh
CPC classification number: G02F1/3546 , G02F1/3558 , G02F1/395 , H04B10/70 , G02F1/3503 , G02F1/3505 , G02F1/3526
Abstract: Bright entangled photon sources including an alignment-free, fiber-based, mechanically-rugged and generic interferometric module are disclosed. The inherent phase-stability of a Sagnac interferometer is deployed. High down-conversion efficiency of periodically poled nonlinear-waveguides is combined with the optical gain of semiconductor optical amplifiers and immunity of fiber optics. A single compact interferometric engine combines these attributes, allowing highly stable, integrable and bright polarization entangled-photon sources operating at room temperature. Using a minimum number of in-line optical parts, the compact module is based on a novel method that enhances the long-term stability and efficiency without compromising the entanglement quality. Besides energy entanglement, polarization entanglement is presented and set through the operational conditions. An optional periodically poled nonlinear waveguide can be hosted to achieve the desired spectral bandwidth and photons generation rate. The result is a zero-maintenance, lightweight, low-power consumption engine of compact and fully-integrable bright polarization-entangled photon sources.
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公开(公告)号：US11774432B2
公开(公告)日：2023-10-03
申请号：US16526232
申请日：2019-07-30
Applicant: OZ Optics Ltd.
Inventor： Hyung-Sool Lee
IPC: C02F3/28 , H01M8/16 , H01M8/24 , G01N27/22 , G01N27/327 , G01N33/18 , G01N27/409
CPC classification number: G01N33/1806 , G01N27/22 , G01N27/3273 , G01N27/409 , G01N33/1826
Abstract: There is provided a biofilm capacitance microbial electrochemical cell (MEC) sensor to measure organic carbon in water and wastewater rapidly and accurately, represented by the 5-day biochemical oxygen demand (BOD5). The MEC runs at charging (open circuit) and discharging (close circuit) conditions alternately to improve the sensitivity, response time and accuracy. The detectable BOD5 concentrations with the biofilm-capacitance MEC range from 5 to 250 mg/L (R2>0.9). The MEC sensor enables BOD5 measurements at every 2 minutes (1 minute charging and 1 minute discharging), indicating semi-continuous quantification of organic carbon in water and wastewater.
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公开(公告)号：US11422088B2
公开(公告)日：2022-08-23
申请号：US16711835
申请日：2019-12-12
Applicant: OZ Optics Ltd.
Inventor： Jean-Michel Ménard , Alexei Halpin , Wei Cui
IPC: G01N21/35 , G01N21/359 , G02F1/35 , G01N21/3581 , G02B5/04
Abstract: There is provided a design of a device consisting of a patterned semiconductor material to provide enhanced detection bandwidth and efficiency of terahertz (THz) pulses with an electro-optic sampling. One device has a semiconductor crystal having a patterned grating on a surface of the semiconductor. In a system, there could optionally be a quarter-wave plate after the semiconductor crystal, followed by a prism. A pair of balanced photodiodes can optionally be provided after the prism. A pulse laser having a NIR beam and THz beam is sent through the semiconductor crystal to the quarter-wave plate to the prism to the photodiodes, wherein the patterned grating on the semiconductor crystal diffracts the NIR beam while the THz remains unaffected. The photodiodes can detect the result.
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