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Lei Xu, 6118 Crabapple Ct, Saint Louis, MO 63132

Related to:
Shuai Xu 37 Min Xu 57 Mm Xu Lingfei Xu 55 Rui Xu

Lei Xu Phones & Addresses

18 Crabapple Ct, Saint Louis, MO 63132   

9476 Olive St, Saint Louis, MO 63132    314-5695888   

Olivette, MO   

San Jose, CA   

Ballwin, MO   

3055 Knights Bridge Rd, San Jose, CA 95132    619-7417733   

Work

Position: Administrative Support Occupations, Including Clerical Occupations

Education

Degree: High school graduate or higher
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Mentions for Lei Xu

Career records & work history

License Records

Lei Xu

Licenses:
License #: 29164 - Expired
Issued Date: Mar 25, 2011
Renew Date: Mar 25, 2011
Expiration Date: May 31, 2012
Type: Certified Public Accountant

Lei Xu

Licenses:
License #: CC-0006029 - Active
Category: Accountancy
Issued Date: Jul 21, 2005
Type: C.P.A. Certificate

Lei Xu

Licenses:
License #: MT1385 - Expired
Category: MASSAGE THERAPY
Issued Date: Apr 19, 2010
Expiration Date: Mar 31, 2013
Type: MASSAGE THERAPIST

Publications & IP owners

Us Patents

Optical Fiber Pigtail Assembly

US Patent:
6969205, Nov 29, 2005
Filed:
Dec 4, 2003
Appl. No.:
10/727735
Inventors:
Richard L. Duesterberg - Mountain View CA, US
Edmund L. Wolak - Palo Alto CA, US
Marc K. Von Gunten - Los Altos CA, US
Nina Morozova - San Jose CA, US
Donald C. Hargreaves - Sidney, CA
Prasad Yalamanchili - Santa Clara CA, US
Hilary Clarke - Milpitas CA, US
Jay A. Skidmore - San Jose CA, US
Lei Xu - Milpitas CA, US
Christopher L. Hart - West Melbourne FL, US
William Bardy - Palm Bay FL, US
Jeffrey Zack - Melbourne FL, US
Kuochou Tai - Fremont CA, US
Assignee:
JDS Uniphase Corporation - San Jose CA
International Classification:
G02B006/42
G02B006/02
US Classification:
385 94, 385128
Abstract:
A fiber tail assembly (FTA) with a micro-lens formed in the fiber tip is used to couple the laser light out of the package and along the fiber. The FTA is soldered at two points where metallized bands are deposited on the fiber pigtail, one at a fiber mount near the diode where it can be soldered into alignment with the laser diode, and two at the snout which forms a feed through the housing and seal for the package. Typically, the FTA is metallized along its entire length within the package. In this invention the two-metallized bands are separated by a region that is unmetallized.

Beam Combining Light Source

US Patent:
8427749, Apr 23, 2013
Filed:
Jun 30, 2010
Appl. No.:
12/827946
Inventors:
Jihua Du - Santa Clara CA, US
James Yonghong Guo - Fremont CA, US
Lei Xu - San Jose CA, US
Richard L. Duesterberg - Mountain View CA, US
Jay A. Skidmore - San Jose CA, US
Assignee:
JDS Uniphase Corporation - Milpitas CA
International Classification:
G02B 27/14
US Classification:
359629, 359618, 359627
Abstract:
The invention relates to sources of optical radiation wherein polarized radiation from first and second rows of light emitters is first collimated and combined into two combined beam using first and second rows of collimating and beam re-directing elements, respectively, and then polarization multiplexed to form a polarization-multiplexed output beam. In order to reduce the footprint, emitters of the first and second emitter rows are disposed in an interleaved, staggered arrangement, and the second row of collimating and beam re-directing elements is disposed in a space between the first emitter row and the first row of collimating and beam re-directing elements.

Beam Combining Light Source

US Patent:
8437086, May 7, 2013
Filed:
Mar 31, 2011
Appl. No.:
13/077592
Inventors:
Jihua Du - Santa Clara CA, US
James Yonghong Guo - Fremont CA, US
Lei Xu - San Jose CA, US
Richard L. Duesterberg - Mountain View CA, US
Jay A. Skidmore - San Jose CA, US
Assignee:
JDS Uniphase Corporation - Milipitas CA
International Classification:
G02B 27/14
US Classification:
359629, 359618
Abstract:
The invention relates to sources of optical radiation wherein polarized radiation from first and second rows of light emitters is first collimated and combined into two combined beam using first and second rows of collimating and beam re-directing elements, respectively, and then polarization multiplexed to form a polarization-multiplexed output beam. In order to reduce the footprint, emitters of the first and second emitter rows are disposed in an interleaved, staggered arrangement, and the second row of collimating and beam re-directing elements is disposed in a space between the first emitter row and the first row of collimating and beam re-directing elements.

Lensed Optical Fiber

US Patent:
2002015, Oct 31, 2002
Filed:
Jul 24, 2001
Appl. No.:
09/915186
Inventors:
Edmund Wolak - Palo Alto CA, US
Lei Xu - Richmond CA, US
Robert Lang - Pleasanton CA, US
Tae Kim - San Jose CA, US
Assignee:
JDS Uniphase Corporation - San Jose CA
International Classification:
G02B006/32
US Classification:
385/033000
Abstract:
A microlens on the end of an optical fiber has reduced back reflections to a light source, such as a pump laser diode. In a particular embodiment, the microlens is lapped on two radii, at least one of which is offset from the center axis of the fiber, to form a point on the end of the fiber, thus reducing a surface for reflecting light back to the light source. In another embodiment, the microlens is formed with two different side surface angles to accommodate misalignment of the light source to the fiber mount. In another embodiment a Fresnel lens structure on the end of the fiber operates optically as an angled chisel lens.

High-Brightness Spatial-Multiplexed Multi-Emitter Pump With Tilted Collimated Beam

US Patent:
2013014, Jun 13, 2013
Filed:
Dec 7, 2011
Appl. No.:
13/313490
Inventors:
James Yonghong GUO - Fremont CA, US
Jay A. Skidmore - San Jose CA, US
Lei Xu - San Jose CA, US
Jane Cheng - San Ramon CA, US
Assignee:
JDS Uniphase Corporation - Milpitas CA
International Classification:
H01S 5/022
US Classification:
372 5012
Abstract:
Multi-mode diode emitters are stacked in a staircase formation to provide a spatially-mulitplexed output. Improved coupling efficiency is achieved by providing tilted collimated output beams that determine an effective step height of the stepped structure. Since the effective step height is dependent on the tilt angle, a variable number of emitters can be used inside packages having a same physical step height, while still attaining high coupling efficiency.

Detection And Prevention Of External Fraud

US Patent:
2021033, Oct 28, 2021
Filed:
Apr 23, 2021
Appl. No.:
17/239152
Inventors:
- San Francisco CA, US
Lawrence Stockton Moore - Palo Alto CA, US
Jeshua Alexis Bratman - Brooklyn NY, US
Lei Xu - New York NY, US
Sanjay Jeyakumar - Berkeley CA, US
International Classification:
H04L 29/06
H04L 12/58
Abstract:
Introduced here are computer programs and computer-implemented techniques for detecting instances of external fraud by monitoring digital activities that are performed with accounts associated with an enterprise. A threat detection platform may determine the likelihood that an incoming email is indicative of external fraud based on the context and content of the incoming email. For example, to understand the risk posed by an incoming email, the threat detection platform may seek to determine not only whether the sender normally communicates with the recipient, but also whether the topic is one normally discussed by the sender and recipient. In this way, the threat detection platform can establish whether the incoming email deviates from past emails exchanged between the sender and recipient.

Wavelength Locking And Multiplexing Of High-Power Semiconductor Lasers

US Patent:
2017006, Mar 2, 2017
Filed:
Jun 3, 2016
Appl. No.:
15/173235
Inventors:
- Milpitas CA, US
Lei XU - San Jose CA, US
International Classification:
H04B 10/572
H04B 10/50
H04J 14/02
Abstract:
The invention relates to wavelength stabilization and wavelength multiplexing of multiple high-power multi-mode semiconductor lasers. The lasers are wavelength-stabilized in free space using multi-peak output reflectors to wavelength-lock their output at different reflection wavelength in dependence on operating conditions, to reduce output reflectivity required for locking and increase output power. Selecting output reflectors having different non-overlapping sets of reflectivity peaks for different lasers or groups of lasers enables combining their output by wavelength multiplexing.

Wavelength Locking And Multiplexing Of High-Power Semiconductor Lasers

US Patent:
2016011, Apr 28, 2016
Filed:
Oct 24, 2014
Appl. No.:
14/522836
Inventors:
- Milpitas CA, US
Lei Xu - San Jose CA, US
International Classification:
H04B 10/572
H04B 10/50
H04J 14/02
Abstract:
The disclosure relates to wavelength stabilization and wavelength multiplexing of multiple high-power multi-mode semiconductor lasers. The lasers are wavelength-stabilized in free space using multi-peak output reflectors to wavelength-lock their output at different reflection wavelength in dependence on operating conditions, to reduce output reflectivity required for locking and increase output power. Selecting output reflectors having different non-overlapping sets of reflectivity peaks for different lasers or groups of lasers enables combining their output by wavelength multiplexing.

Isbn (Books And Publications)

Artificial Neural Networks And Neural Information Processing - Icann/Iconip 2003: Joint International Conference Icann/Icinip 2003, Istanbul, Turkey, June 26-29, 2003, Proceedings

Author:
Lei Xu
ISBN #:
3540404082

Possible Relatives

David Xu  Dawei H Xu  Da Z Xu  Dan Xu  Daniel B Xu  Denise Xu  Danny Xu  Lei Z Standring  Lei G Lam  Lei Meng 

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