Bing Liang Wang

US Patent:

6535662, Mar 18, 2003

Filed:

Mar 9, 2001

Appl. No.:

09/802767

Inventors:

Paul R. Prucnal - Princeton NJ
Ivan Glesk - Princeton NJ
Robert Runser - Aberdeen NJ
Christine Coldwell - Columbia MD
Bing C. Wang - Alhambra CA

Assignee:

The Trustees of Princeton University - Princeton NJ

International Classification:

G02B 626

US Classification:

385 16, 385 15, 385 18, 385122, 385 39, 385 42, 385 45, 385 46, 356345, 359115, 359117, 359124, 359128

Abstract:

A Terahertz Optical Asymmetric Demultiplexer (TOAD) having preferably two non-linear elements (NLES) in which the extinction ratio is enhanced by saturating both NLEs when closing a switching window. A data signal input on one port of the TOAD is split onto two optical paths, each including one NLE. The optical paths converge at an output port. To start a switching window, a first control signal is input on an optical path that includes only one of the two NLEs. To close a switching window, one or more control signals are input such that both NLEs receive a control signal at a predetermined time after the first control signal is received by one of the NLEs. Only data signals passing through the first NLE during the switching window are output on the output port. Since both NLEs receive a second control signal at the same time, they decay together and thus avoid creation of unintended switching windows. Additionally, in certain embodiments of the present invention, the second control signal can be input on the data port or the output port, eliminating the need for a separate port for the second control signal as required by certain known TOADs.

US Patent:

7035550, Apr 25, 2006

Filed:

Dec 10, 2003

Appl. No.:

10/732171

Inventors:

Paul R. Prucnal - Princeton NJ, US
Bing C. Wang - Mansfield Center CT, US

Assignee:

The Trustees of Princeton University - Princeton NJ

International Classification:

H04B 10/20

US Classification:

398175

Abstract:

A system and method for regenerating optical signals comprising a clock recovery circuit coupled to a transmission line, a first optical gating device having an input port coupled to the transmission line and a clock port coupled to the clock recovery circuit, and a second optical gating device having an input port coupled to a continuous wave (CW) laser and a clock port coupled to the output of the first optical gating device, wherein the optical gating devices may be terahertz optical asymmetric demultiplexers (TOADs).

US Patent:

20130092603, Apr 18, 2013

Filed:

Oct 17, 2012

Appl. No.:

13/653669

Inventors:

Peter RICCIO - New Rochelle NY, US
Tarun BHAMBHANI - Stamford CT, US
Alan S. ROTHENBERG - Wilton CT, US
Carmina QUINTANAR - Santiago, CL
Bing WANG - Brookfield CT, US

Assignee:

CYTEC TECHNOLOGY CORP. - Wilmington DE

International Classification:

B03D 1/012
B03D 1/014
B03D 1/02

US Classification:

209166, 252 61

Abstract:

Formulations for value mineral collector compositions composed of at least one first collector selected from an organic ammonium salt of an organic sulfur-containing acid; and at least one second collector selected from neutral collectors and/or organic ammonium salts of an organic sulfur-containing acids, such that the second collector is different from said first collector, are provided herein, along with methods for making and using same.

US Patent:

20130092604, Apr 18, 2013

Filed:

Oct 17, 2012

Appl. No.:

13/653713

Inventors:

Peter RICCIO - New Rochelle NY, US
Tarun BHAMBHANI - Stamford CT, US
Alan S. ROTHENBERG - Wilton CT, US
Carmina QUINTANAR - Santiago, CL
Bing WANG - Brookfield CT, US

Assignee:

CYTEC TECHNOLOGY CORP. - Wilmington DE

International Classification:

B03D 1/02

US Classification:

209166

Abstract:

Froth flotation processes that include adding a beneficiating amount of a value mineral collector composed of an organic ammonium salt of a sulfur-containing acid to at least one stage of a froth flotation process to recover value minerals from mineral ore bodies are disclosed herein.

US Patent:

20130092605, Apr 18, 2013

Filed:

Oct 17, 2012

Appl. No.:

13/653732

Inventors:

Peter RICCIO - New Rochelle NY, US
Tarun BHAMBHANI - Stamford CT, US
Alan S. ROTHENBERG - Wilton CT, US
Carmina QUINTANAR - Santiago, CL
Bing WANG - Brookfield CT, US

Assignee:

CYTEC TECHNOLOGY CORP. - Wilmington DE

International Classification:

B03D 1/02
B03D 1/012

US Classification:

209166

Abstract:

Froth flotation processes that include adding a beneficiating amount of a value mineral collector composed of an organic ammonium salt of a sulfur-containing acid to at least one stage of a froth flotation process to recover value minerals from mineral ore bodies are disclosed herein.