Patents by Inventor Shizhuo Yin
Shizhuo Yin 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: 11169388Abstract: A laser beam apparatus can include a set of pulsed lasers (e.g. solid state fiber lasers), a controllable beam deflector, and an electric power supply and controller connected to the beam deflector. The laser pulses from the different pulsed lasers can be configured to hit the beam deflector at different angles and different times. The electric power supply and controller can be configured to control and synchronize the timing and angle at which the different lasers pulses hit the beam deflector with an adjustment of the deflection property of the beam deflector so that the laser pulses from different input directions propagate in the same direction after passing through the beam deflector. The laser pulses from the lasers can be combined together via this control and synchronization.Type: GrantFiled: August 21, 2017Date of Patent: November 9, 2021Assignee: The Penn State Research FoundationInventor: Shizhuo Yin
-
Patent number: 10833222Abstract: A light-emitting diode, comprising a substrate that has a first surface and an opposing second surface. A reflection layer is disposed on the first surface of the substrate and a light-emitting diode structure is arranged on the second surface of the substrate. The light-emitting diode structure includes a first semiconducting layer, an active layer and a second semiconducting layer disposed consecutively on the second surface. A plurality of protruding asymmetric micro-structured elements define at least a part of the second surface of the substrate such that at least a portion of a surface of each micro-structured element is disposed at an obtuse angle to the first surface of the substrate when measured from within the respective micro-structured element. The first semiconducting layer and the second semiconducting layer respectively have a first electrode and a second electrode.Type: GrantFiled: August 10, 2017Date of Patent: November 10, 2020Assignee: The Penn State Research FoundationInventors: Shizhuo Yin, Chang-Jiang Chen, Ju-Hung Chao, Wenbin Zhu
-
Publication number: 20200089013Abstract: A laser beam apparatus can include a set of pulsed lasers (e.g. solid state fiber lasers), a controllable beam deflector, and an electric power supply and controller connected to the beam deflector. The laser pulses from the different pulsed lasers can be configured to hit the beam deflector at different angles and different times. The electric power supply and controller can be configured to control and synchronize the timing and angle at which the different lasers pulses hit the beam deflector with an adjustment of the deflection property of the beam deflector so that the laser pulses from different input directions propagate in the same direction after passing through the beam deflector. The laser pulses from the lasers can be combined together via this control and synchronization.Type: ApplicationFiled: August 21, 2017Publication date: March 19, 2020Inventor: Shizhuo Yin
-
Publication number: 20190237622Abstract: A light-emitting diode, comprising a substrate that has a first surface and an opposing second surface. A reflection layer is disposed on the first surface of the substrate and a light-emitting diode structure is arranged on the second surface of the substrate. The light-emitting diode structure includes a first semiconducting layer, an active layer and a second semiconducting layer disposed consecutively on the second surface. A plurality of protruding asymmetric micro-structured elements define at least a part of the second surface of the substrate such that at least a portion of a surface of each micro-structured element is disposed at an obtuse angle to the first surface of the substrate when measured from within the respective micro-structured element. The first semiconducting layer and the second semiconducting layer respectively have a first electrode and a second electrode.Type: ApplicationFiled: August 10, 2017Publication date: August 1, 2019Inventors: Shizhuo Yin, Chang-Jiang Chen, Ju-Hung Chao, Wenbin Zhu
-
Patent number: 10274673Abstract: We provide methods and apparatus for preparing crystalline-clad and crystalline core optical fibers with minimal or no breakage by minimizing the influence of thermal stress during a liquid phase epitaxy (LPE) process as well as the fiber with precisely controlled number of modes propagated in the crystalline cladding and crystalline core fiber via precisely controlling the diameter of crystalline fiber core with under-saturated LPE flux. The resulting crystalline cladding and crystalline core optical fibers are also reported.Type: GrantFiled: January 19, 2018Date of Patent: April 30, 2019Assignees: The Penn State Research Foundation, General Opto Solutions LLCInventors: Shizhuo Yin, Fang Luo
-
Patent number: 10054735Abstract: We provide methods and apparatus for preparing crystalline-clad and crystalline core optical fibers with minimal or no breakage by minimizing the influence of thermal stress during a liquid phase epitaxy (LPE) process as well as the fiber with precisely controlled number of modes propagated in the crystalline cladding and crystalline core fiber via precisely controlling the diameter of crystalline fiber core with under-saturated LPE flux. The resulting crystalline cladding and crystalline core optical fibers are also reported.Type: GrantFiled: October 24, 2017Date of Patent: August 21, 2018Assignees: The Penn State Research Foundation, General Opto Solutions, LLCInventors: Shizhuo Yin, Fang Luo
-
Publication number: 20180203183Abstract: We provide methods and apparatus for preparing crystalline-clad and crystalline core optical fibers with minimal or no breakage by minimizing the influence of thermal stress during a liquid phase epitaxy (LPE) process as well as the fiber with precisely controlled number of modes propagated in the crystalline cladding and crystalline core fiber via precisely controlling the diameter of crystalline fiber core with under-saturated LPE flux. The resulting crystalline cladding and crystalline core optical fibers are also reported.Type: ApplicationFiled: January 19, 2018Publication date: July 19, 2018Inventors: Shizhuo YIN, Fang LUO
-
Patent number: 10018857Abstract: An electro-optic modulator comprising at least one nanodisordered potassium tantalate niobate crystal; first and second conductors operatively connected to the nanodisordered potassium tantalate niobate crystal adapted to be connected to a voltage source to modulate light passing there through; whereby light is modulated by passing through the nanodisordered potassium tantalate niobate crystal. A method for modulating light comprising providing at least one at least one nanodisordered potassium tantalate niobate crystal; providing first and second conductors operatively connected to the nanodisordered potassium tantalate niobate crystal adapted to be connected to a voltage source to modulate light passing there through; providing an interrogating light beam striking at least one nanodisordered potassium tantalate niobate crystal; modulating light passing through the nanodisordered potassium tantalate niobate crystal; and receiving a modulated light beam.Type: GrantFiled: September 12, 2017Date of Patent: July 10, 2018Assignee: The United States of America as represented by the Secretary of the ArmyInventors: Robert C Hoffman, Shizhuo Yin
-
Patent number: 9995875Abstract: We provide methods and apparatus for preparing crystalline-clad and crystalline core optical fibers with minimal or no breakage by minimizing the influence of thermal stress during a liquid phase epitaxy (LPE) process as well as the fiber with precisely controlled number of modes propagated in the crystalline cladding and crystalline core fiber via precisely controlling the diameter of crystalline fiber core with under-saturated LPE flux. The resulting crystalline cladding and crystalline core optical fibers are also reported.Type: GrantFiled: July 27, 2016Date of Patent: June 12, 2018Assignees: The Penn State Research Foundation, General Opto Solutions, LLCInventors: Shizhuo Yin, Fang Luo
-
Publication number: 20180045883Abstract: We provide methods and apparatus for preparing crystalline-clad and crystalline core optical fibers with minimal or no breakage by minimizing the influence of thermal stress during a liquid phase epitaxy (LPE) process as well as the fiber with precisely controlled number of modes propagated in the crystalline cladding and crystalline core fiber via precisely controlling the diameter of crystalline fiber core with under-saturated LPE flux. The resulting crystalline cladding and crystalline core optical fibers are also reported.Type: ApplicationFiled: October 24, 2017Publication date: February 15, 2018Inventors: Shizhuo Yin, Fang Luo
-
Publication number: 20180011349Abstract: An electro-optic modulator comprising at least one nanodisordered potassium tantalate niobate crystal; first and second conductors operatively connected to the nanodisordered potassium tantalate niobate crystal adapted to be connected to a voltage source to modulate light passing there through; whereby light is modulated by passing through the nanodisordered potassium tantalate niobate crystal. A method for modulating light comprising providing at least one at least one nanodisordered potassium tantalate niobate crystal; providing first and second conductors operatively connected to the nanodisordered potassium tantalate niobate crystal adapted to be connected to a voltage source to modulate light passing there through; providing an interrogating light beam striking at least one nanodisordered potassium tantalate niobate crystal; modulating light passing through the nanodisordered potassium tantalate niobate crystal; and receiving a modulated light beam.Type: ApplicationFiled: September 12, 2017Publication date: January 11, 2018Applicant: U.S. Army Research LaboratoryInventors: Robert C Hoffman, Shizhuo Yin
-
Patent number: 9817253Abstract: An electro-optic modulator comprising at least one nanodisordered potassium tantalate niobate crystal; first and second conductors operatively connected to the nanodisordered potassium tantalate niobate crystal adapted to be connected to a voltage source to modulate light passing there through; whereby light is modulated by passing through the nanodisordered potassium tantalate niobate crystal. A method for modulating light comprising providing at least one at least one nanodisordered potassium tantalate niobate crystal; providing first and second conductors operatively connected to the nanodisordered potassium tantalate niobate crystal adapted to be connected to a voltage source to modulate light passing there through; providing an interrogating light beam striking at least one nanodisordered potassium tantalate niobate crystal; modulating light passing through the nanodisordered potassium tantalate niobate crystal; and receiving a modulated light beam.Type: GrantFiled: June 23, 2015Date of Patent: November 14, 2017Assignee: The United States of America as represented by the Secretary of the ArmyInventors: Robert C. Hoffman, Shizhuo Yin
-
Publication number: 20170031091Abstract: We provide methods and apparatus for preparing crystalline-clad and crystalline core optical fibers with minimal or no breakage by minimizing the influence of thermal stress during a liquid phase epitaxy (LPE) process as well as the fiber with precisely controlled number of modes propagated in the crystalline cladding and crystalline core fiber via precisely controlling the diameter of crystalline fiber core with under-saturated LPE flux. The resulting crystalline cladding and crystalline core optical fibers are also reported.Type: ApplicationFiled: July 27, 2016Publication date: February 2, 2017Inventors: Shizhuo YIN, Fang LUO
-
Patent number: 9547163Abstract: We present a method for parallel axial imaging, or z-microscopy, utilizing an array of tilted micro mirrors arranged along the axial direction. Image signals emitted from different axial positions can be orthogonally reflected by the corresponding micro mirrors and spatially separated for parallel detection, essentially converting the more challenging axial imaging to a lateral imaging problem. Each micro mirror also provides optical sectioning capability due to its finite dimension.Type: GrantFiled: November 29, 2013Date of Patent: January 17, 2017Assignee: The Penn State Research FoundationInventors: Zhiwen Liu, Chuan Yang, Kebin Shi, Mingda Zhou, Siyang Zheng, Shizhuo Yin
-
Publication number: 20160011440Abstract: An electro-optic modulator comprising at least one nanodisordered potassium tantalate niobate crystal; first and second conductors operatively connected to the nanodisordered potassium tantalate niobate crystal adapted to be connected to a voltage source to modulate light passing there through; whereby light is modulated by passing through the nanodisordered potassium tantalate niobate crystal. A method for modulating light comprising providing at least one at least one nanodisordered potassium tantalate niobate crystal; providing first and second conductors operatively connected to the nanodisordered potassium tantalate niobate crystal adapted to be connected to a voltage source to modulate light passing there through; providing an interrogating light beam striking at least one nanodisordered potassium tantalate niobate crystal; modulating light passing through the nanodisordered potassium tantalate niobate crystal; and receiving a modulated light beam.Type: ApplicationFiled: June 23, 2015Publication date: January 14, 2016Applicant: U.S. ARMY RESEARCH LABORATORY ATTN: RDRL-LOC-IInventors: Robert C. Hoffman, Shizhuo Yin
-
Publication number: 20140146159Abstract: We present a method for parallel axial imaging, or z-microscopy, utilizing an array of tilted micro mirrors arranged along the axial direction. Image signals emitted from different axial positions can be orthogonally reflected by the corresponding micro mirrors and spatially separated for parallel detection, essentially converting the more challenging axial imaging to a lateral imaging problem. Each micro mirror also provides optical sectioning capability due to its finite dimension.Type: ApplicationFiled: November 29, 2013Publication date: May 29, 2014Applicant: The Penn State Research FoundationInventors: Zhiwen Liu, Chuan Yang, Kebin Shi, Mingda Zhou, Siyang Zheng, Shizhuo Yin
-
Publication number: 20030190121Abstract: The present invention relates to an athermal tunable filter in which the wavelength and intensity responses of the filter can be independently tuned by moving the location of the filter. The filter is fabricated by recording multiple volume phase holographic gratings in highly stable photosensitive glasses (e.g. Ge-doped fused silica optic fiber preforms). The athermal operation is realized by an innovative design, in which the shift of the effective grating period induced by the thermal-optic effect is automatically compensated by the shift of incident and output beam angles. In addition, by recording the gratings in selected areas, the intensity response of the filter can also be independently tuned.Type: ApplicationFiled: April 9, 2003Publication date: October 9, 2003Inventors: Fang Luo, Shizhuo Yin, Yunlong Sheng
-
Patent number: 6631238Abstract: Randomly polarized light impinges upon a birefringent crystal, is split into orthogonal polarization components and emerges from the crystal separated by a walk-off distance. The light beams then impinge on polarization rotators that cause a rotation of the plane of polarization by +45° and −45°. The light then encounters a variable polarization rotator in which the plane of polarization is rotated through a angle that varies in response to an externally-applied control signal. The maximum operating range (0 to 100% attenuation) is achieved when the variable rotator is capable of rotations in the range ±45°. A second birefringent crystal functions as a beam displacer. The beams encounter two wave plates configured to produce rotation angles of 0° and 90° followed by a retroreflector. The reverse traverse of the attenuator causes the light to emerge at an output port attenuated in intensity.Type: GrantFiled: March 16, 2001Date of Patent: October 7, 2003Assignee: Primanex CorporationInventors: Hongdu Liu, Daxin Liu, Shizhuo Yin, Lee Lisheng Huang
-
Patent number: 6580546Abstract: The present invention relates to the use of magnetic materials in combination with magneto-optic materials to improve performance of Faraday rotator devices by enhancing the latching capability and reducing the driving current. Semi-hard magnetic materials are advantageously used in connection with some embodiments of the present invention. Placing such semi-hard magnetic materials in proximity with the magneto-optic material enhances latching and reduces the drive current required to cause switching. Encompassing both the magneto-optic material and the semi-hard magnetic material further reduces drive current requirements and enhances latching by reducing leakage of the magnetic field from its generation within the coil to the magneto-optic material. Some embodiments further include soft or semi-hard material encompassing the coil.Type: GrantFiled: August 3, 2001Date of Patent: June 17, 2003Assignee: PrimanexInventors: Hongdu Liu, Shizhuo Yin, Daxin Liu, Lee Lisheng Huang
-
Patent number: 6563985Abstract: An optical filter that is tunable over a wide portion of the spectrum, such as the infrared portion. The filter has a core of silica fiber with a first cladding layer of silica fiber disposed thereon. A long period grating is disposed on the core. A second electro-optical cladding layer is disposed on the first cladding layer. The first cladding layer is ultra thin so as to support only a single resonant band over the spectral portion. The resonant band is tunable to different wavelengths in the spectral portion by a voltage applied to the second electro-optic layer. The electro-optic layer is a copolymer that has a refractive index less than that of the silica fiber material. The optical filter has fast tuning speed (nanosecond range), wide tuning range (>50 nm), low insertion loss (<0.1 dB), narrow bandwidth (<0.5 nm), and low sidelobe (<30 dB).Type: GrantFiled: March 7, 2001Date of Patent: May 13, 2003Assignee: The Penn State Research FoundationInventors: Shizhuo Yin, Paul Kurtz, Karl Reichard, Hongyu Liu, Qiming Zhang