Bing Xu

US Patent:

8576885, Nov 5, 2013

Filed:

Feb 9, 2012

Appl. No.:

13/369581

Inventors:

Robert van Leeuwen - Ewing NJ, US
Yihan Xiong - Pennington NJ, US
Jean F Seurin - Princeton Junction NJ, US
Chuni L Ghosh - West Windsor NJ, US
Bing Xu - Bayside NY, US

Assignee:

Princeton Optronics, Inc. - Mercerville NJ

International Classification:

H01S 3/04

US Classification:

372 34, 372 36, 372 3805, 372 5012, 372 50124, 372 72

Abstract:

Optical pump modules using VCSEL arrays are provided to pump optical gain media for achieving high power laser output in CW, QCW and pulse operation modes for operation. Low divergence and symmetric far-field emission from VCSELs are particularly suitable for compact arrays. VCSEL arrays configured as laser pump modules are operable at high temperatures with practically no degradation over a long period of time. VCSEL pump modules are adaptable for side- or end-pumping configurations to pump high power lasers in CW, QCW and pulse mode. Power output from VCSEL pump modules is scalable. Incorporating microlens arrays with the VCSEL arrays improve brightness of the pump modules. High power and high temperature operation of VCSEL modules make it suitable for making compact high power solid state lasers that are operable in small spaces such as, ignition of internal combustion engines, stationary power generation engines and pulsed detonation engines.

US Patent:

20060124036, Jun 15, 2006

Filed:

Oct 28, 2005

Appl. No.:

11/261391

Inventors:

Bing Xu - Brooklyn NY, US
Qing-san Xiang - Vancouver, CA

International Classification:

A47B 85/00

US Classification:

108020000

Abstract:

A novel concept of ergodynamic desktops with slowly varying configurations for ergonomic purposes is provided. Very slow motions are incorporated into the design of desktops, usually used by computer users. The introduced motion is at such a slow pace that it is hardly noticeable, similar to the adiabatic motions of hour or minute hands on a clock. Users of the desktops are therefore induced to adjust their body posture accordingly in a gradual and healthy manner, while still continuing to perform their normal activities without interruption. These desktop designs allow a natural and effortless combination of normal life and exercise. When used in a working environment, they will be useful to improve the health and to enhance the efficiency of workers.

US Patent:

20130208741, Aug 15, 2013

Filed:

Feb 11, 2013

Appl. No.:

13/764770

Inventors:

REALD INC. - , US
Bing XU - Bayside NY, US
Yihan Xiong - Lawrenceville NJ, US
Jean-Francois Seurin - West Windsor, NJ, US
Chuni Ghosh - West Windsor NJ, US

Assignee:

REALD INC. - Beverly Hills CA

International Classification:

H01S 5/06

US Classification:

372 22

Abstract:

Disclosed herein are architectures for VCSEL systems. By using high power IR VCSEL element(s), a bulk doubling material can be used to double the IR light and generate visible light (red, green, blue, or UV light) in a cavity, in either continuous wave (CW) or pulsed mode. The reflectivity of the output distributed Bragg reflector (DBR) of these VCSELs can be designed to increase the power in the cavity, rather than the power in the VCSEL laser. By enabling the use of a bulk doubling material in the cavity and directly doubling the VCSEL the device can be inexpensive, simpler, high efficiency, better reliability, and vastly improved manufacturing and alignment tolerances. There are a number of cavity architectures that can be used to double the IR light from the VCSEL(s). The VCSEL(s) can be single elements, or arrays with high intensity elements.

US Patent:

20130266032, Oct 10, 2013

Filed:

Apr 5, 2013

Appl. No.:

13/857810

Inventors:

Bing XU - Bayside NY, US
Qing Wang - Plainsboro NJ, US
Chuni Ghosh - West Windsor NJ, US

Assignee:

RealD Inc. - Beverly Hills CA

International Classification:

H01S 5/42
H01S 5/06

US Classification:

372 22

Abstract:

Disclosed herein are architectures for an external cavity laser. In some embodiments, the external cavity laser includes vertical cavity surface emitting laser (VCSEL) elements, a Brewster plate, frequency doubling chips, and a microlens array. The Brewster plate is arranged at an angle relative to the light path, and is configured to polarize at least the light received from the VCSELs and propagating on the light path in a first direction, and extract, from the external cavity, frequency-doubled light propagating on the light path in a second direction opposite to the first direction. The doubling chips are operable to receive the light and double the frequency of a portion of the received light. The microlens array is aligned with the VCSEL elements. A mount may be employed to mount the side stack of doubling chips by either side mounting or end mounting.

US Patent:

54532205, Sep 26, 1995

Filed:

Jan 29, 1993

Appl. No.:

8/011301

Inventors:

Timothy M. Swager - Wynnewood PA
Bing Xu - Philadelphia PA

Assignee:

The Trustees of the University of Pennsylvania - Philadelphia PA

International Classification:

F21V 900

US Classification:

252582

Abstract:

Calixarene-based, noncentrosymmetric transition metal complexes that exhibit large second order nonlinear optical and related electro-optical properties are provided, as are materials and devices comprising the same.

US Patent:

20160348636, Dec 1, 2016

Filed:

May 27, 2016

Appl. No.:

15/166296

Inventors:

- Mercerville NJ, US
Qing Wang - Plainsboro NJ, US
Bing Xu - Bayside NY, US
Robert van Leeuwen - Ewing NJ, US

Assignee:

Princeton Optronics Inc. - Mercerville NJ

International Classification:

F02P 23/04

Abstract:

A high efficiency optical ignition device is provided in a two-part compact and robust package to be mounted directly on an internal combustion engine chamber. The ignition device ignites a combustion fuel with a high intensity plasma generated by a high power laser beam from a solid state laser operable in Q-switched, or non-Q-switched mode for producing short or long pulses, respectively. Multiple pulses are generated, and duration and frequency of the laser beam pulses are controlled by controlling an optical pump module to pump the solid state laser. The optical pump module comprises a semiconductor laser, preferably a VCSEL device. One or more laser beams are precisely directed, each one to a desired location anywhere within the combustion chamber for more efficient and near complete burning of the combustion fuel. The robust packaging is well suited to withstand mechanical and thermal stresses of the internal combustion engine.