Patents by Inventor Valery A. Kozlov

Valery A. Kozlov has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10663677
    Abstract: A delivery system extends from a laser radiation source for connecting to a medical device that utilizes the laser radiation for medical treatment. The delivery system comprises an optical fiber connecting to a male launch connecter. The male launch connector having a body portion with the optical fiber fixed or constrained therein and the optical fiber terminating at a male ferrule with a forward directed fiber facet, the male ferrule may be cantilevered within the body portion by the optical fiber line providing freedom of movement of the male ferrule. The launch connector engages a receiving connector on the medical device first with mechanical connection portions and then more finely aligning optical connection portions by the male ferrule self aligning in a female ferrule with cooperating tapered surfaces. The male portion may fully seat in the female portion with cooperating cylindrical surfaces.
    Type: Grant
    Filed: September 25, 2018
    Date of Patent: May 26, 2020
    Assignee: IPG Photonics Corporation
    Inventors: Gregory Altshuler, Christopher Gaal, Valery Kozlov
  • Patent number: 10663326
    Abstract: A fiber sensor includes an optical fiber configured for operation at a wavelength from about 800 nm to about 1600 nm. The optical fiber includes a cladding that is defined by a fiber outer diameter and a core that is surrounded by the cladding. The core of the optical fiber has a Rayleigh scattering coefficient, ?s, that is controlled by controlling a concentration of one or more dopants in the core. The Rayleigh scattering coefficient is tuned to be within a predetermined range of an optimum Rayleigh scattering coefficient for a given total length, L, of the optical fiber. The predetermined range is from about 70% of the optimum ?s to about 130% of the optimum ?s.
    Type: Grant
    Filed: July 27, 2018
    Date of Patent: May 26, 2020
    Assignee: Corning Incorporated
    Inventors: Anthony Artuso, Valery A Kozlov, Ming-Jun Li
  • Patent number: 10317255
    Abstract: According to some embodiments a fiber sensor comprises: —an optical fiber configured for operation at a wavelength from about 300 nm to about 2000 nm, and further defined by a transmission end, another end, a fiber outer diameter and a fiber length, the fiber comprising: (a) a hybrid core comprising a single mode core portion and a multi-mode core portion; and (b) a cladding surrounding the hybrid core.
    Type: Grant
    Filed: January 17, 2018
    Date of Patent: June 11, 2019
    Assignee: Corning Incorporated
    Inventors: Anthony Artuso, Valery A Kozlov, Ming-Jun Li
  • Patent number: 10302463
    Abstract: A fiber sensor that includes: an optical fiber configured for one of single or few mode operation at a wavelength from about 300 nm to about 2000 nm, and further defined by a transmission end, a scattering end, a fiber outer diameter and a fiber length from about 10 m to about 100 km. The fiber includes: a plurality of cores having equivalent core diameters and compositions; and a cladding defined by the fiber outer diameter and surrounding the cores. The fiber is tapered at the transmission end to define a tapered portion characterized by a tapered fiber out diameter and tapered core diameters smaller than the respective fiber outer diameter and core diameters. Further, the transmission end of the fiber exhibits a total backscattered signal that emanates from the cores after light from a single source has been injected into the cores at the transmission end of the fiber.
    Type: Grant
    Filed: June 24, 2016
    Date of Patent: May 28, 2019
    Assignee: Corning Incorporated
    Inventors: Valery A Kozlov, Ming-Jun Li
  • Publication number: 20190094472
    Abstract: A delivery system extends from a laser radiation source for connecting to a medical device that utilizes the laser radiation for medical treatment. The delivery system comprises an optical fiber connecting to a male launch connecter. The male launch connector having a body portion with the optical fiber fixed or constrained therein and the optical fiber terminating at a male ferrule with a forward directed fiber facet, the male ferrule may be cantilevered within the body portion by the optical fiber line providing freedom of movement of the male ferrule. The launch connector engages a receiving connector on the medical device first with mechanical connection portions and then more finely aligning optical connection portions by the male ferrule self aligning in a female ferrule with cooperating tapered surfaces. The male portion may fully seat in the female portion with cooperating cylindrical surfaces.
    Type: Application
    Filed: September 25, 2018
    Publication date: March 28, 2019
    Inventors: Gregory Altshuler, Christopher Gaal, Valery Kozlov
  • Publication number: 20190056249
    Abstract: A fiber sensor includes an optical fiber configured for operation at a wavelength from about 800 nm to about 1600 nm. The optical fiber includes a cladding that is defined by a fiber outer diameter and a core that is surrounded by the cladding. The core of the optical fiber has a Rayleigh scattering coefficient, ?s, that is controlled by controlling a concentration of one or more dopants in the core. The Rayleigh scattering coefficient is tuned to be within a predetermined range of an optimum Rayleigh scattering coefficient for a given total length, L, of the optical fiber. The predetermined range is from about 70% of the optimum ?s to about 130% of the optimum ?s.
    Type: Application
    Filed: July 27, 2018
    Publication date: February 21, 2019
    Inventors: Anthony Artuso, Valery A. Kozlov, Ming-Jun Li
  • Patent number: 10082632
    Abstract: A delivery system extends from a laser radiation source for connecting to a medical device that utilizes the laser radiation for medical treatment. The delivery system comprises an optical fiber connecting to a male launch connecter. The male launch connector having a body portion with the optical fiber fixed or constrained therein and the optical fiber terminating at a male ferrule with a forward directed fiber facet, the male ferrule may be cantilevered within the body portion by the optical fiber line providing freedom of movement of the male ferrule. The launch connector engages a receiving connector on the medical device first with mechanical connection portions and then more finely aligning optical connection portions by the male ferrule self aligning in a female ferrule with cooperating tapered surfaces. The male portion may fully seat in the female portion with cooperating cylindrical surfaces.
    Type: Grant
    Filed: March 31, 2017
    Date of Patent: September 25, 2018
    Assignee: IPG Photonics Corporation
    Inventors: Gregory Altshuler, Christopher Gaal, Valery Kozlov
  • Publication number: 20180202843
    Abstract: According to some embodiments a fiber sensor comprises: —an optical fiber configured for operation at a wavelength from about 300 nm to about 2000 nm, and further defined by a transmission end, a another end, a fiber outer diameter and a fiber length, the fiber comprising: (a) a hybrid core comprising a single mode core portion and a multi-mode core portion; and (b) a cladding surrounding the hybrid core.
    Type: Application
    Filed: January 17, 2018
    Publication date: July 19, 2018
    Inventors: Anthony Artuso, Valery A. Kozlov, Ming-Jun Li
  • Publication number: 20170285276
    Abstract: A delivery system extends from a laser radiation source for connecting to a medical device that utilizes the laser radiation for medical treatment. The delivery system comprises an optical fiber connecting to a male launch connecter. The male launch connector having a body portion with the optical fiber fixed or constrained therein and the optical fiber terminating at a male ferrule with a forward directed fiber facet, the male ferrule may be cantilevered within the body portion by the optical fiber line providing freedom of movement of the male ferrule. The launch connector engages a receiving connector on the medical device first with mechanical connection portions and then more finely aligning optical connection portions by the male ferrule self aligning in a female ferrule with cooperating tapered surfaces. The male portion may fully seat in the female portion with cooperating cylindrical surfaces.
    Type: Application
    Filed: March 31, 2017
    Publication date: October 5, 2017
    Inventors: Gregory Altshuler, Christopher Gaal, Valery Kozlov
  • Publication number: 20170146371
    Abstract: A fiber sensor that includes: an optical fiber configured for one of single or few mode operation at a wavelength from about 300 nm to about 2000 nm, and further defined by a transmission end, a scattering end, a fiber outer diameter and a fiber length from about 10 m to about 100 km. The fiber includes: a plurality of cores having equivalent core diameters and compositions; and a cladding defined by the fiber outer diameter and surrounding the cores. The fiber is tapered at the transmission end to define a tapered portion characterized by a tapered fiber out diameter and tapered core diameters smaller than the respective fiber outer diameter and core diameters. Further, the transmission end of the fiber exhibits a total backscattered signal that emanates from the cores after light from a single source has been injected into the cores at the transmission end of the fiber.
    Type: Application
    Filed: June 24, 2016
    Publication date: May 25, 2017
    Inventors: Valery A. Kozlov, Ming-Jun Li
  • Patent number: 8977095
    Abstract: Polarization maintaining optical fibers and methods for making the same are disclosed herein. According to one embodiment, a polarization maintaining optical fiber includes a cladding portion and a core portion disposed in the cladding portion. The core portion includes a first core region having a first coefficient of thermal expansion CTE1 and a second core region having a second coefficient of thermal expansion CTE2. The first coefficient of thermal expansion CTE1 is not equal to the second coefficient of thermal expansion CTE2. At least one of the first core region and the second core region is non-circular symmetric with respect to a centerline of the polarization maintaining optical fiber.
    Type: Grant
    Filed: September 24, 2013
    Date of Patent: March 10, 2015
    Assignee: Corning Incorporated
    Inventors: Brett Jason Hoover, Valery A Kozlov, Ming-Jun Li
  • Publication number: 20140212102
    Abstract: Polarization maintaining optical fibers and methods for making the same are disclosed herein. According to one embodiment, a polarization maintaining optical fiber includes a cladding portion and a core portion disposed in the cladding portion. The core portion includes a first core region having a first coefficient of thermal expansion CTE1 and a second core region having a second coefficient of thermal expansion CTE2. The first coefficient of thermal expansion CTE1 is not equal to the second coefficient of thermal expansion CTE2. At least one of the first core region and the second core region is non-circular symmetric with respect to a centerline of the polarization maintaining optical fiber.
    Type: Application
    Filed: September 24, 2013
    Publication date: July 31, 2014
    Applicant: Corning Incorporated
    Inventors: Brett Jason Hoover, Valery A. Kozlov, Ming-Jun Li
  • Patent number: 8792762
    Abstract: An optical system comprising: a light source providing light in 300-700 nm range; and an optical fiber optically coupled to the source; the optical fiber is structured to transmit the light provided by the source and comprises Al doped silica based core with 0 to 1 wt % of Ge and no rare-earth metal(s); and at least one silica based cladding surrounding the core. According to some embodiments the fiber includes: a core having a radius of no more than 2.0 ?m and having a first index of refraction n1 and a relative refractive index delta with respect to the cladding between 0.15 and 1.0%. The Al doped silica core comprises less than 0.5 wt % of Ge and includes no rare-earth metals; and the silica based cladding surrounding the core has a second index of refraction n2, such that n1>n2, the cladding having an outer diameter of 80 ?m or greater.
    Type: Grant
    Filed: May 31, 2011
    Date of Patent: July 29, 2014
    Assignee: Corning Incorporated
    Inventors: Kevin Wallace Bennett, Valery A Kozlov
  • Patent number: 8724952
    Abstract: A polarization-maintaining (PM) optical fiber has a pure silica core surrounded by a cladding having a region with randomly arranged voids. Stress members are arranged in the cladding on opposite sides of and in line with the core, and impart birefringence to the PM optical fiber. The PM optical fiber is resistant to aging effects and has a broad single-mode spectral range of 400 nm to 1,600 nm.
    Type: Grant
    Filed: April 29, 2011
    Date of Patent: May 13, 2014
    Assignee: Corning Incorporated
    Inventors: Valery A Kozlov, Ming-Jun Li
  • Patent number: 8526773
    Abstract: According to some embodiments, the optical fiber comprises: (i) a core having a first index of refraction n1; (ii) a cladding surrounding the core and having a second index of refraction n2, such that n1>n2, wherein cladding has at two sets of stress rods extending longitudinally through the length of the optical fiber, wherein the two sets of stress rods have CTE coefficients and/or softening points different from one another and different from that of cladding.
    Type: Grant
    Filed: April 30, 2010
    Date of Patent: September 3, 2013
    Assignee: Corning Incorporated
    Inventors: George Edward Berkey, Valery A Kozlov
  • Patent number: 8468852
    Abstract: A method and an apparatus for making an optical fiber preform comprising the steps of (i) depositing a plurality of rods are deposited into an inner cavity of an apparatus; (ii) depositing particulate glass material in the inner cavity between the rods and the inner wall; and (iii) applying pressure against the particulate glass material to pressurize the particulate glass material against the plurality of rods.
    Type: Grant
    Filed: December 2, 2010
    Date of Patent: June 25, 2013
    Assignee: Corning Incorporated
    Inventors: Steven Bruce Dawes, Andrey V Filippov, Ming-Jun Li, Douglas H. Jennings, Valery A. Kozlov, Pushkar Tandon, Ji Wang
  • Publication number: 20120308187
    Abstract: An optical system comprising: a light source providing light in 300-700 nm range; and an optical fiber optically coupled to the source; the optical fiber is structured to transmit the light provided by the source and comprises Al doped silica based core with 0 to 1 wt % of Ge and no rare-earth metal(s); and at least one silica based cladding surrounding the core. According to some embodiments the fiber includes: a core having a radius of no more than 2.0 ?m and having a first index of refraction n1 and a relative refractive index delta with respect to the cladding between 0.15 and 1.0%. The Al doped silica core comprises less than 0.5 wt % of Ge and includes no rare-earth metals; and the silica based cladding surrounding the core has a second index of refraction n2, such that n1>n2, the cladding having an outer diameter of 80 ?m or greater.
    Type: Application
    Filed: May 31, 2011
    Publication date: December 6, 2012
    Inventors: Kevin Wallace Bennett, Valery A Kozlov
  • Publication number: 20120275750
    Abstract: A polarization-maintaining (PM) optical fiber has a pure silica core surrounded by a cladding having a region with randomly arranged voids. Stress members are arranged in the cladding on opposite sides of and in line with the core, and impart birefringence to the PM optical fiber. The PM optical fiber is resistant to aging effects and has a broad single-mode spectral range of 400 nm to 1,600 nm.
    Type: Application
    Filed: April 29, 2011
    Publication date: November 1, 2012
    Inventors: Valery A. Kozlov, Ming-Jun Li
  • Publication number: 20110268399
    Abstract: According to some embodiments, the optical fiber comprises: (i) a core having a first index of refraction n1; (ii) a cladding surrounding the core and having a second index of refraction n2, such that n1>n2, wherein cladding has at two sets of stress rods extending longitudinally through the length of the optical fiber, wherein the two sets of stress rods have CTE coefficients and/or softening points different from one another and different from that of cladding.
    Type: Application
    Filed: April 30, 2010
    Publication date: November 3, 2011
    Inventors: George Edward Berkey, Valery A. Kozlov
  • Publication number: 20110132038
    Abstract: A method and an apparatus for making an optical fiber preform comprising the steps of (i) depositing a plurality of rods are deposited into an inner cavity of an apparatus; (ii) depositing particulate glass material in the inner cavity between the rods and the inner wall; and (iii) applying pressure against the particulate glass material to pressurize the particulate glass material against the plurality of rods.
    Type: Application
    Filed: December 2, 2010
    Publication date: June 9, 2011
    Inventors: Steven Bruce Dawes, Andrey V. Filippov, Ming-Jun Li, Douglas H. Jennings, Valery A. Kozlov, Pushkar Tandon, Ji Wang