Michael Jay Spector

US Patent:

20030206681, Nov 6, 2003

Filed:

Jun 11, 2002

Appl. No.:

10/167773

Inventors:

Leonid Polonskiy - Westwood NJ, US
Vladimir Yankov - Washington Twp. NJ, US
Michael Spector - Hackensack NJ, US
Andrei Talapov - Tenafly NJ, US
Sergey Babin - Castro Valley CA, US
Alexander Goltsov - Paramus NJ, US
Anatoli Morozov - Hightstown NJ, US
Natalya Polonskaya - Westwood NJ, US

Assignee:

Vyoptics, Inc. - Allendale NJ

International Classification:

G02B006/26
G02B006/293

US Classification:

385/015000, 385/027000, 385/039000, 385/024000

Abstract:

The present invention provides a photonic multi-bandgap structure, herein also referred to as photonic bandgap quasi-crystal (“PBQC”), that can direct light, having wavelength components within a selected passband (), from an input port, to a predefined output port, while providing an integrating element for Planar Lightwave Circuits. A photonic bandgap quasi-crystal of the invention combines in a planar waveguide spectrally selective properties of gratings, focusing properties of elliptical mirrors, superposition properties of thick holograms, photonic bandgaps of periodic structures, and flexibility of binary lithography. A photonic structure of the invention can be utilized, for example, as an integrating spectrally sensitive element in a variety of optical devices that can include, but are not limited to, optical switches, optical multiplexer/demultiplexers, multi-wavelength lasers, and channel monitors in Wavelength Division Mulitplexing (WDM) telecommunications system.

US Patent:

20030210862, Nov 13, 2003

Filed:

May 7, 2002

Appl. No.:

10/140857

Inventors:

Vladimir Yankov - Washington Twp. NJ, US
Igor Ivonin - Uppsala, SE
Michael Spector - Hackensack NJ, US
Andrei Talapov - Tenafly NJ, US
Leonid Polonskiy - Westwood NJ, US
Sergey Babin - Castro Valley CA, US
Alexander Goltsov - Paramus NJ, US
Vladimir Goloviznine - Nieuwegein, NL
Anatoli Morozov - Hightstown NJ, US
Natalya Polonskaya - Westwood NJ, US

International Classification:

G02B006/34
G02B006/293

US Classification:

385/037000, 385/024000

Abstract:

A MUX, DEMUX or integrated combination MUX/DEMUX utilizing a discrete dispersion device (herein referred to as “D” device), which includes at least one input port, at least one output port and an optical planar waveguide comprising a synergetic photonic bandgap quasi-crystal (“PBQC”) for guiding and supporting optical signals in a work bandwidth. The Ddevice achieves a flat-top response for each channel, high channel isolation and background noise suppression.