Allan Chang, 67East Millstone, NJ

7317739, Jan 8, 2008

Mar 17, 2003

10/390379

Stephen Y. Chou - Princeton NJ, US
Shufeng Bai - Princeton NJ, US
Allan Chang - Princeton NJ, US
Hua Tan - Princeton NJ, US
Jian Jim Wang - Orefield PA, US

Princeton University - Princeton NJ

H01S 3/098
H01S 3/08

372 18, 372 92, 372102

In accordance with the invention, a mode-locked laser comprises an optical gain medium disposed within an optical cavity formed by a first reflector and a wavelength selective second reflector to achieve mode-locking operation. Advantageously, the wavelength reflective reflector is a two-dimensional subwavelength resonant grating. The resulting laser is compact, tunable, reliable and inexpensive. It provides high side mode suppression and high output power.

2004012, Jun 24, 2004

Sep 30, 2003

10/674607

Stephen Chou - Princeton NJ, US
Allan Chang - Princeton NJ, US
Hua Tan - Plainsboro NJ, US
Jim Wang - Orefield PA, US
Wei Wu - Mountain View CA, US
Rich Yu - Levittown PA, US

G02B006/34

385/037000, 385/129000

In accordance with the invention, a SRG filter is fabricated by disposing a moldable layer on the unpatterned grating layer, pressing a patterned molding surface into the moldable layer to produce an appropriate pattern of reduced thickness regions, removing material from the reduced thickness regions to expose the grating layer and processing the exposed grating layer to form a grating array. In a preferred embodiment the grating layer is adjacent a planar waveguiding layer overlying a substrate and the moldable material is a polymer resist. The waveguide layer advantageously has a refractive index greater than both the grating layer and the underlying substrate. And the pattern can be a one or two-dimensional array of grating elements.

2005023, Oct 27, 2005

Sep 30, 2003

10/674608

Stephen Chou - Princeton NJ, US
Allan Chang - Princeton NJ, US
Hua Tan - Plainsboro NJ, US
Jim Wang - Orefield PA, US
Wei Wu - Mountain View CA, US
Rich Yu - Levittown PA, US

G02F001/13

349198000

In accordance with the invention, a tunable subwavelength resonant grating filter comprises a liquid crystal cell having a pair of major surface walls. One wall of the cell is a coated subwavelength grating of a SRGF. The coating comprises a polymer layer to fill the grating trenches and a surfactant layer to facilitate uniform alignment of the liquid crystal material. The refractive index of the LCD material in the cell can then be electrically or thermally adjusted to tune the resonant wavelength.

6404747, Jun 11, 2002

Jun 2, 1998

09/088640

Alfred E. Berry - Freehold NJ
Allan M. Chang - Middletown NJ
Rich Hamm - Spotswood NJ
Rick Maiden - Littleton CO
Sandra Milstead - Clarksburg NJ
John Mitchell - Matawan NJ
Bajinder Singh - Marlboro NJ

Avaya Technology Corp. - Basking Ridge NJ

H04L 1216

370270, 379203, 379265

A Video Multimedia Call Center (VMMCC) with multipoint access through a PBX (private branch exchange, also known as a switchboard) within an ACD (automatic call distribution) environment has both audio and video capabilities. The VMMCC extends traditional call center capabilities into the video and collaborative data domain. An organization using the VMMCC is able to provide a more personal and feature rich interface for both their customer service representatives and their end customers. Call center agents are able to communicate visually with customers at any location where the organization supports an endpoint. The agent and the customer have the added benefit of sharing data applications which provides the customer with a level of empowerment and understanding of the organizations operation that cannot be appreciated over a standard audio interface. Customers are able to see how their information is truly being represented by the agent. More complex transactions such as mortgage/loan origination interviews, customer help lines, and others are easier for the customer to understand with the ability to see the information unfolding.