Bryan J Wolfe

US Patent:

20020176644, Nov 28, 2002

Filed:

Mar 14, 2002

Appl. No.:

10/099651

Inventors:

Venkata Bhagavatula - Big Flats NY, US
John Himmelreich - Horseheads NY, US
Gregory Williams - Fayetteville GA, US
Bryan Wolfe - Hammondsport NY, US

International Classification:

G02B006/27

US Classification:

385/011000

Abstract:

The invention relates to a polarization combiner/splitter. The polarization combiner/splitter includes a first ferrule, a first optical fiber assembly coupled to the first ferrule and a second optical fiber assembly coupled to the first ferrule. The polarization combiner/splitter also includes a walk-off crystal coupled to the first ferrule. A second ferrule is coupled to the walk-off crystal; and a third optical fiber assembly coupled to the second ferrule. The first optical fiber assembly includes a first fiber GRIN lens coupled to a first polarization mode maintaining optical waveguide fiber. The second optical fiber assembly includes a second fiber GRIN lens coupled to a second polarization mode maintaining optical waveguide fiber. The third optical fiber assembly includes a third fiber GRIN lens and a first single mode optical waveguide fiber.

US Patent:

20030165290, Sep 4, 2003

Filed:

Oct 21, 2002

Appl. No.:

10/202515

Inventors:

Venkata Bhagavatula - Big Flats NY, US
Nagaraja Shashidhar - Painted Post NY, US
Bryan Wolfe - Hammondsport NY, US

International Classification:

G02B006/32

US Classification:

385/033000

Abstract:

A lensed apparatus for altering the mode field of an optical signal is disclosed. The apparatus includes an optical fiber biconic lens disposed on an end of the optical fiber such that the optical fiber and the biconic lens define an optical axis. The biconic lens includes an external surface defined by two different curves disposed substantially orthogonal to one another, a major curve Cand a minor curve C, wherein Cand Cintersect at or near the optical axis. A method of manufacturing a lensed apparatus for altering the mode field of an optical signal, and an optical assembly are also disclosed.