Christopher W Draper

US Patent:

8218921, Jul 10, 2012

Filed:

Jul 14, 2009

Appl. No.:

12/502651

Inventors:

Victor Il'ich Kopp - Fair Lawn NJ, US
Jonathan Singer - New Hope PA, US
Christopher Draper - Allendale NJ, US
Victor M. Churikov - Wyckoff NJ, US
Daniel Neugroschl - Suffern NY, US

Assignee:

Chiral Photonics, Inc. - Pine Brook NJ

International Classification:

G02B 6/00
G02B 6/02
G02B 6/34

US Classification:

385 37, 385123

Abstract:

A single helix chiral fiber grating of a predetermined grating strength is provided that is operable to control light transmission in a predetermined wavelength range. The novel fiber grating comprises a first optical fiber with a first interface portion at a first end, a second interface portion at a second end, and a middle portion therebetween. The first optical fiber is configured with at least one fiber core, surrounded by a corresponding at least one cladding, with a first longitudinal section disposed within the first interface portion, a second longitudinal section disposed within the second interface portion, and also includes a longitudinal helical section, disposed therebetween within the middle portion, that comprises a longitudinal helix structure of a single predetermined handedness, having a predetermined pitch profile, and having a predetermined helix diameter profile selected and configured to produce the predetermined grating strength. The helical section of the novel fiber grating is preferably produced by placing the first optical fiber, proximal to and parallel with a second fiber (or equivalent elongated member), and longitudinally twisting them together to form a double helix structure. Advantageously, the diameter of the second fiber (or a diameter profile thereof) may be selected to achieve the predetermined helix diameter profile in the helical section of the first fiber.

US Patent:

8457456, Jun 4, 2013

Filed:

Oct 20, 2008

Appl. No.:

12/254758

Inventors:

Victor Il'ich Kopp - Fair Lawn NJ, US
Jonathan Singer - New Hope PA, US
Victor M. Churikov - Wyckoff NJ, US
Christopher W. Draper - Allendale NJ, US
Norman Chao - Brooklyn NY, US
Daniel Neugroschl - Suffern NY, US

Assignee:

Chiral Photonics, Inc. - Pine Brook NJ

International Classification:

G02B 6/26

US Classification:

385 29, 385 11, 385 43, 385 50

Abstract:

An optical fiber mode coupling device, capable of being readily connected to a conventional optical fiber with a high degree of ruggedness, is provided. The inventive mode coupling device only allows transmission of at least one supported fiber mode therethrough, and is preferably configured to maximize the coupling, of at least one desired fiber mode, to the at least one supported fiber mode. Advantageously, the inventive mode coupling device is capable of performing the functions of a mode filter for the signal entering its first end, or serving as a mode conditioner for the signal entering its opposite second end. Thus, in one practical application thereof, the novel mode coupling device functions as a mode filter by maximizing the coupling between at least one desired fiber mode of a multi-mode input signal entering the device's first end, and at least one supported mode of the device, to produce an output signal at the device's second end that comprises at least one predetermined fiber mode, corresponding to at least one desired fiber mode. In another practical application thereof, the novel mode coupling device functions as a mode conditioner by maximizing the coupling between an input signal, comprising at least one predetermined fiber mode, that enters the device's second end, and, and at least one supported mode of the device, to produce an output signal at the device's first end that comprises at least one desired fiber mode, corresponding to a conditioned at least one predetermined fiber mode.

US Patent:

20210041640, Feb 11, 2021

Filed:

Dec 11, 2019

Appl. No.:

16/710463

Inventors:

- Pine Brook NJ, US
Victor Il'ich Kopp - Fair Lawn NJ, US
Christopher W. Draper - Allendale NJ, US
Zhou Shi - Pine Brook NJ, US
Norman Chao - Brooklyn NY, US

International Classification:

G02B 6/38

Abstract:

An optical fiber connector configured to rotationally align a first optical fiber with a second optical fiber is provided. The connector can include at least two rotational alignment features. At least one of the two rotational alignment features can include at least one ferrule configured to hold at least the first optical fiber.

US Patent:

20140275765, Sep 18, 2014

Filed:

Mar 14, 2014

Appl. No.:

14/213138

Inventors:

Steven C. Gebhart - Durham NC, US
Norman R. Akens - Lake In The Hills IL, US
Andrew Black - Johnsburg IL, US
Andrew Corson - Apex NC, US
Christopher Draper - Allendale NJ, US
Perry A. Genova - Chapel Hill NC, US
Robert Christopher Hall - Apex NC, US
Tanner Hargens - Charlotte NC, US
Victor Kopp - Fair Lawn NJ, US
Matt Penny - Holly Springs NC, US
Jonathan Singer - New Hope PA, US
Brian Walsh - Charlotte NC, US

International Classification:

A61B 1/00
A61B 1/07

US Classification:

600103, 600182, 600121, 600125

Abstract:

A fiber optic probe assembly comprises an optical engine and a fiber optic probe. A proximal end connector comprises a self-aligning connector for connecting optical fibers of the fiber optic probe to the optical engine and an integrated fiber optic-based polarizer. A disposable cover is provided for enclosing at least a portion of a fiber optic probe assembly. The disposable cover comprises an elongated tubular housing and a sheath portion adapted to receive at least a portion of the fiber optic probe between ends of the housing. A handle is disposed on a proximal end of the housing, the handle comprising a self-tensioning device. An optical window is disposed on a distal end of the housing, the optical window adapted to provide for alignment with optical elements of the fiber optic probe.