404 patents
Utility
Laser Amplification with Passive Peak-power Filter
18 Jan 24
A method for generating amplified laser radiation includes generating a forward-propagating laser beam in a first waveguiding gain stage, amplifying the forward-propagating laser beam in a second waveguiding gain stage, and directing the forward-propagating laser beam from an output waveguide of the first waveguiding gain stage to an input waveguide of the second waveguiding gain stage via a propagation path passing through a Kerr medium.
Conor BYRNE
Filed: 10 Jul 23
Utility
Lasers with a Composite Cavity of Two Semiconductors
18 Jan 24
A laser may include a lower semiconductor structure and an upper semiconductor structure.
Young-Kai Chen
Filed: 12 Jul 23
Utility
Bonded Substrate Including Polycrystalline Diamond Film
18 Jan 24
A wafer has a layer containing silicon, a layer of polycrystalline diamond deposited on the silicon-containing layer, and a bow-compensation layer on the other side of the silicon-containing layer for reducing wafer-bow.
Wen-Qing XU, Di LAN, Christopher KOEPPEN
Filed: 11 Jul 23
Utility
Planar Buried Optical Waveguides In Semiconductor Substrate and Methods of Forming
18 Jan 24
A method of forming a semiconductor device may include providing semiconductor substrate having a substrate top side and a dielectric layer along the substrate top side and forming a first mask layer over the dielectric layer.
Young-Kai Chen
Filed: 12 Jul 23
Utility
Modular assembly for opto-electronic systems
16 Jan 24
A modular assembly for opto-electronic systems has a substrate on which various photonic integrated circuit (PIC) chips and electronic integrated circuit (EIC) chips are mounted.
Po Dong, Juthika Basak, Jiashu Chen
Filed: 21 Nov 22
Utility
Optical system with safety component
16 Jan 24
A light guide or beam guiding system with safety component and a method for its breakage monitoring.
Eduard Armbruster, Frank Schulze
Filed: 24 Mar 22
Utility
Method for manufacturing a grid
16 Jan 24
A grid is manufactured with a combination of ion implant and epitaxy growth.
Adolf Schoner, Sergey Reshanov, Nicolas Thierry-Jebali, Hossein Elahipanah
Filed: 27 Apr 22
Utility
Multi-wavelength VCSEL array and method of fabrication
16 Jan 24
A vertical cavity surface emitting laser (VCSEL) array is fabricated to produce multiple wavelengths.
Antoine Philippe Pissis, Evgeny Zibik
Filed: 13 Nov 20
Utility
Hairpin Welding and Inspection for Quality Assurance
11 Jan 24
A method of welding and evaluating welds on stator hairpins includes obtaining first data representative of the ends of a first pair of stator hairpins by capturing image data representative of the ends, and processing the image data to obtain a data set representative of a rectangle which fully encloses the end surfaces of the stator hairpins.
Alexander Müller
Filed: 8 Jul 22
Utility
Feeder design with high current capability
9 Jan 24
A feeder design is manufactured as a structure in a SiC semiconductor material comprising at least two p-type grids in an n-type SiC material (3), comprising at least one epitaxially grown p-type region, wherein an Ohmic contact is applied on the at least one epitaxially grown p-type region, wherein an epitaxially grown n-type layer is applied on at least a part of the at least two p-type grids and the n-type SiC material (3) wherein the at least two p-type grids (4, 5) are applied in at least a first and a second regions at least close to the at least first and second corners respectively and that there is a region in the n-type SiC material (3) between the first and a second regions without any grids.
Hossein Elahipanah, Nicolas Thierry-Jebali, Adolf Schoner, Sergey Reshanov
Filed: 5 Jan 23
Utility
Immobilized selenium in a porous carbon with the presence of oxygen, a method of making, and uses of immobilized selenium in a rechargeable battery
9 Jan 24
In a method of preparing an immobilized selenium system or body, a selenium-carbon-oxygen mixture is formed.
Marta Sevilla Solis, Antonio Benito Fuertes Arias, Wen-Qing Xu, Xiaoming Li, Shailesh Patkar, Elgin E. Eissler
Filed: 7 Feb 20
Utility
Apparatus and method for coherent optical multiplexing 1+1 protection
9 Jan 24
Coherent optical multiplexing 1+1 protection disclosed herein uses multiplexers, each having multiplexing and demultiplexing sub-units.
Peigang Hu, Yajun Wang
Filed: 21 Mar 23
Utility
Light sources with chip-level integrated diffusers
2 Jan 24
An embodiment includes a light source.
Jimmy A. Tatum, James K. Guenter
Filed: 4 May 22
Utility
Compact, Surface-Mounted VCSEL Illuminators
28 Dec 23
VCSEL-based flood illuminators are fabricated to be compact and surface-mounted devices.
Jason O'Daniel, Pei-Song Cai, Hong-Zhi Liu, Francesco Schiattone
Filed: 24 Jun 22
Utility
Oxide Aperture Shaping In Vertical Cavity Surface-Emitting Laser
21 Dec 23
A mesa structure for a VCSEL device is particularly configured to compensate for variations in the shape of the created oxide aperture that result from anisotropic oxidation.
Mirko Hoser, Abram Jakubowicz, Tomi Leinonen
Filed: 2 Aug 23
Utility
Additive Manufacture In Metals with a Fiber Array Laser Source and Adaptive Multi-beam Shaping
21 Dec 23
A system that uses a scalable array of individually controllable laser beams that are generated by a fiber array system to process materials into an object.
Mikhail A. VORONTSOV
Filed: 29 Aug 23
Utility
Edge Rate (Rise and Fall Time) Controlled Segmented Laser Driver
21 Dec 23
An optical driver circuit is described herein having a plurality of drive cells and delay segments between their control signals resulting in the control of the rising and falling edge rates for an optical device driven by the optical driver circuit.
Theron JONES, Richard A. Davis, Brian CAREY, Michael YEUNG, Steve TROYER, Jonathan ASHBROOK
Filed: 15 Jun 22
Utility
Assembly for transceiver module of fiber-optic communication network
19 Dec 23
A planar lightwave circuit (PLC) assembly is used for a transceiver module that includes a circuit board having photodetectors mounted at a spacing from one another.
Grace Zhang, Sharon Zeng, Vincent Guan
Filed: 11 Feb 21
Utility
Spectral beam combiner with independent wavelength stabilization
19 Dec 23
A spectral beam combiner is based upon a specialized diffraction grating that is intentionally configured to create output signals along two separate paths, each path supporting a spectrally-combined beam.
Haro Fritsche, Andreas Grohe
Filed: 15 Dec 20
Utility
Method of preparing and application of carbon-selenium composites
12 Dec 23
The present invention discloses a preparation method to make lithium selenium secondary battery cathode materials with a high energy density and stable electrochemical performances.
Yu-Guo Guo, Shuaifeng Zhang, Yaxia Yin
Filed: 30 May 19