Patents by Inventor Roy McBride
Roy McBride 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).
-
Publication number: 20220181836Abstract: A diode-pumped solid state laser system and a method of diode-pumping a solid state laser in which the emitter beamlets in the diode bar are directed at a beam transformation optical element which includes a continuous twisted surface to produce a uniform and symmetrised beam in the fast field which is then focused to match an input pump area of the gain medium of the solid state laser. Embodiments to square and rectangular flat-top intensity distributions are described using a Fourier lens and a set of cylindrical orthogonal lenses.Type: ApplicationFiled: December 6, 2021Publication date: June 9, 2022Inventors: Paul Duncan Graham, Roy McBride, Natalia Trela-McDonald
-
Patent number: 10274738Abstract: A field mapping optical system and method for converting a light beam having a known spatially coherent first optical field to a second optical field with a required intensity distribution and flat wavefront at a desired distance from the system, by creating an intermediate optical field, between the first and second optical fields, the intermediate optical field being derived from the inverse Fourier transform of the second optical field. The optical system provides a compact and simplified field mapper.Type: GrantFiled: March 10, 2016Date of Patent: April 30, 2019Assignee: POWER PHOTONIC LTD.Inventors: Natalia Trela-McDonald, Roy McBride, Howard John Baker, Matthew Oren Currie
-
Patent number: 10156840Abstract: A process for the manufacture of custom freeform optical elements utilising parameterised modelling. A system for the automatic manufacture of a custom optical element is also described with the manufacturing being by laser micro-machining. The process and system allow customers to specify and order via a web interface and so reduce engineering time, overhead and cost.Type: GrantFiled: August 25, 2017Date of Patent: December 18, 2018Assignee: POWERPHOTONIC, LTD.Inventors: Matthew Oren Currie, Simon Clovis Younger, Roy McBride
-
Publication number: 20170371324Abstract: A process for the manufacture of custom freeform optical elements utilising parameterised modelling. A system for the automatic manufacture of a custom optical element is also described with the manufacturing being by laser micro-machining. The process and system allow customers to specify and order via a web interface and so reduce engineering time, overhead and cost.Type: ApplicationFiled: August 25, 2017Publication date: December 28, 2017Inventors: Matthew Oren Currie, Simon Clovis Younger, Roy McBride
-
Patent number: 9760084Abstract: A process for the manufacture of custom freeform optical elements utilizing parameterized modelling. A system for the automatic manufacture of a custom optical element is also described with the manufacturing being by laser micro-machining. The process and system allow customers to specify and order via a web interface and so reduce engineering time, overhead and cost.Type: GrantFiled: January 31, 2014Date of Patent: September 12, 2017Assignee: POWER PHOTONIC LTD.Inventors: Matthew Oren Currie, Simon Clovis Younger, Roy McBride
-
Publication number: 20160266393Abstract: A field mapping optical system and method for converting a light beam having a known spatially coherent first optical field to a second optical field with a required intensity distribution and flat wavefront at a desired distance from the system, by creating an intermediate optical field, between the first and second optical fields, the intermediate optical field being derived from the inverse Fourier transform of the second optical field. The optical system provides a compact and simplified field mapper.Type: ApplicationFiled: March 10, 2016Publication date: September 15, 2016Inventors: Natalia Trela-McDonald, Roy McBride, Howard John Baker, Matthew Oren Currie
-
Patent number: 9089927Abstract: A method and apparatus of generating a laser pulse of a desired energy and micro-machining a substrate using the laser pulse. A beam of light is provided from a laser source. The beam is directed via a modulator to produce an output laser pulse with a portion of the laser pulse being used to determine the energy of the laser pulse. The modulator is controlled so as to switch off the output laser pulse when the determined energy of the output laser pulse reaches a threshold value. The output laser pulse is steered to a substrate for micro-machining.Type: GrantFiled: November 22, 2011Date of Patent: July 28, 2015Assignee: POWERPHOTONIC, LTD.Inventors: Krzysztof Michal Nowak, Howard John Baker, Roy McBride, Jozef Jacek Wendland
-
Patent number: 8817832Abstract: A multi-wavelength laser array of a plurality of emitters in a diode bar or stack where each beam is deflected by a different angle to be incident upon a uniform volume holographic grating with a portion of the beam being deflected as a feedback portion while a further portion provides a wavelength tuned output unique to each emitter. The arrangement of a uniform volume holographic grating with deflectors such as phaseplates eliminates the need to use expensive wavelength chirped gratings.Type: GrantFiled: May 7, 2012Date of Patent: August 26, 2014Assignee: Power Photonic Ltd.Inventors: Natalia Trela, Howard John Baker, Roy McBride
-
Publication number: 20140222182Abstract: A process for the manufacture of custom freeform optical elements utilising parameterized modelling. A system for the automatic manufacture of a custom optical element is also described with the manufacturing being by laser micro-machining. The process and system allow customers to specify and order via a web interface and so reduce engineering time, overhead and cost.Type: ApplicationFiled: January 31, 2014Publication date: August 7, 2014Inventors: Matthew Oren Currie, Simon Clovis Younger, Roy McBride
-
Patent number: 8570657Abstract: A micro-optical element for use with an edge-emitting laser diode bar stack, the element comprising a plurality of spaced apart fast-axis collimators formed as a monolithic array, wherein the spacing between the collimators in the fast-axis varies across the micro-optic element. A method of manufacturing a micro-optical element for use with a laser diode bar stack, using a wavelength stabilized CO2 laser is also described.Type: GrantFiled: November 8, 2011Date of Patent: October 29, 2013Assignee: Power Photonic, Ltd.Inventors: Roy McBride, Matthew Oren Currie, Jozef Jacek Wendland
-
Publication number: 20130121360Abstract: A multi-wavelength laser array of a plurality of emitters in a diode bar or stack where each beam is deflected by a different angle to be incident upon a uniform volume holographic grating with a portion of the beam being deflected as a feedback portion while a further portion provides a wavelength tuned output unique to each emitter. The arrangement of a uniform volume holographic grating with deflectors such as phaseplates eliminates the need to use expensive wavelength chirped gratings.Type: ApplicationFiled: May 7, 2012Publication date: May 16, 2013Inventors: Natalia Trela, Howard John Baker, Roy McBride
-
Publication number: 20120298650Abstract: A method and apparatus of generating a laser pulse of a desired energy and micro-machining a substrate using the laser pulse. A beam of light is provided from a laser source. The beam is directed via a modulator to produce an output laser pulse with a portion of the laser pulse being used to determine the energy of the laser pulse. The modulator is controlled so as to switch off the output laser pulse when the determined energy of the output laser pulse reaches a threshold value. The output laser pulse is steered to a substrate for micro-machining.Type: ApplicationFiled: November 22, 2011Publication date: November 29, 2012Inventors: Krzysztof Michal Nowak, Howard John Baker, Roy McBride, Jozef Jacek Wendland
-
Patent number: 8253087Abstract: A system for measuring the wavefront characteristics of a powerful laser close to an emitting or transmitting surface of the laser. The system includes a beam sampler that has a sampling aperture for sampling radiation from a sampled area along the emitting or transmitting surface. The beam sampler includes a reflector for directing un-sampled radiation onto an absorber, which absorbs un-sampled radiation. Radiation sampled by the beam sampler is sensed using a sensor.Type: GrantFiled: August 29, 2007Date of Patent: August 28, 2012Assignee: Powerphotonic LtdInventors: Howard Baker, Jesus F. Monjardin-Lopez, Francisco J. Villarreal-Saucedo, Roy McBride
-
Publication number: 20120140334Abstract: A micro-optical element for use with an edge-emitting laser diode bar stack, the element comprising a plurality of spaced apart fast-axis collimators formed as a monolithic array, wherein the spacing between the collimators in the fast-axis varies across the micro-optic element. A method of manufacturing a micro-optical element for use with a laser diode bar stack, using a wavelength stabilized CO2 laser is also described.Type: ApplicationFiled: November 8, 2011Publication date: June 7, 2012Inventors: Roy McBride, Matthew Oren Currie, Jozef Jacek Wendland
-
Publication number: 20100012818Abstract: A system for measuring the wavefront characteristics of a powerful laser close to an emitting or transmitting surface of the laser. The system includes a beam sampler that has a sampling aperture for sampling radiation from a sampled area along the emitting or transmitting surface. The beam sampler includes a reflector for directing un-sampled radiation onto an absorber, which absorbs un-sampled radiation. Radiation sampled by the beam sampler is sensed using a sensor.Type: ApplicationFiled: August 29, 2006Publication date: January 21, 2010Applicant: POWERPHOTONIC LTDInventors: Howard Baker, Jesus F. Monjardin-Lopez, Francisco J. Villarreal-Saucedo, Roy McBride
-
Patent number: 6621956Abstract: An optical fibre bend sensor (10) measures the degree and orientation of bending present in a sensor length (30) portion of a fibre assembly (26). Within a multicored fibre (30, 32,34), cores (62, 66) are grouped in non-coplanar pairs. An arrangement of optical elements (28, 36, 38) define within each core pair (62, 66) two optical paths (122, 124) which differ along the sensor length (30): one core (62) of a pair (62, 66) is included in the first path (122), and the other core (66) in the second path (124). A general bending of the sensor region (30) will lengthen one core (62, 66) with respect to the other. Interrogation of this length differential by means of interferometry generates interferograms from which the degree of bending in the plane of the core pair is extracted. Bend orientation can be deduced from data extracted from multiple core pairs.Type: GrantFiled: January 24, 2002Date of Patent: September 16, 2003Assignee: Qinetiq LimitedInventors: Alan H Greenaway, James G Burnett, Andrew R Harvey, Paul M Blanchard, Peter A Lloyd, Roy McBride, Philip St John Russell
-
Publication number: 20020097960Abstract: An optical fiber bend sensor (10) measures the degree and orientation of bending present in a sensor length (30) portion of a fiber assembly (26). Within a multicored fiber (30, 32,34), cores (62, 66) are grouped in non-coplanar pairs. An arrangement of optical elements (28, 36, 38) define within each core pair (62, 66) two optical paths (122, 124) which differ along the sensor length (30): one core (62) of a pair (62, 66) is included in the first path (122), and the other core (66) in the second path (124). A general bending of the sensor region (30) will lengthen one core (62, 66) with respect to the other. Interrogation of this length differential by means of interferometry generates interferograms from which the degree of bending in the plane of the core pair is extracted. Bend orientation can be deduced from data extracted from multiple core pairs.Type: ApplicationFiled: January 24, 2002Publication date: July 25, 2002Applicant: The Secretary of State for DefenceInventors: Alan H. Greenaway, James G. Burnett, Andrew R. Harvey, Paul M. Blanchard, Peter A. Lloyd, Roy McBride, Philip St John Russell
-
Patent number: 6389187Abstract: An optical fiber bend sensor (10) measures the degree and orientation of bending present in a sensor length (30) portion of a fiber assembly (26). Within a multicored fiber (30, 32, 34), cores (62, 66) are grouped in non-coplanar pairs. An arrangement of optical elements (28, 36, 38) define within each core pair (62, 66) two optical paths (122, 124) which differ along the sensor length (30): one core (62) of a pair (62, 66) is included in the first path (122), and the other core (66) in the second path (124). A general bending of the sensor region (30) will lengthen one core (62, 66) with respect to the other. Interrogation of this length differential by means of interferometry generates interferograms from which the degree of bending in the plane of the core pair is extracted. Bend orientation can be deduced from data extracted from multiple core pairs.Type: GrantFiled: April 21, 2000Date of Patent: May 14, 2002Assignee: Qinetiq LimitedInventors: Alan H Greenaway, James G Burnett, Andrew R Harvey, Peter A Lloyd, Roy McBride, Philip St John Russell, Paul M Blanchard
-
Patent number: 6137573Abstract: A sensor system (10) incorporating an interferometer operates as an optical strain gauge. The system (10) is arranged to generate interferograms characterised by an optical path difference between light traversing a sensor arm (12) of the interferometer and light traversing a reference arm (58). Each arm incorporates a highly birefringent optical fibre (38, 58) capable of supporting light propagation at two velocities in two different polarisation modes. A first interferogram is generated between light coupled into the fast eigenmodes of each fibre and a second is generated between light coupled into the slow eigenmodes. Mean optical group delay (.tau..sub.MGD) and differential optical group delay (.tau..sub.DGD) of these interferograms are affected differently by temperature and strain and thus provide a means of discriminating between these attributes of the sensor environment. Thus simultaneous measurement of strain and temperature is achieved.Type: GrantFiled: September 16, 1998Date of Patent: October 24, 2000Assignee: The Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Northern IrelandInventors: David G Luke, Roy McBride, Peter A Lloyd, James G Burnett, Alan H Greenaway, Julian D C Jones
-
Patent number: 5721615Abstract: A sensor system in an interferometric arrangement has a sensor arm and a reference arm. The reference arm is in a stable environment and the sensor arm is arranged to be subject to variations in strain and/or temperature. Radiation from a broadband source propagates through the arrangement and a broadband interferogram is generated as an air gap is scanned. The interferogram is recorded on an oscilloscope and analyzed using signal processing software on a computer. From the analysis the changes in group delay and optical dispersion of the light in the sensor arm due to strain and temperature changes is measured, and values for the strain and/or temperature changes calculated. A narrowband light source may be used for accurate calibration of path length differences during scanning. The strain and temperature on the sensor arm may be calibrated or tested using clamps and a thermal enclosure.Type: GrantFiled: January 25, 1996Date of Patent: February 24, 1998Assignee: The Secretary of State for Defense in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Northern IrelandInventors: Roy McBride, James G. Burnett, Alan Howard Greenaway, Julian D. C. Jones