Michael D Conroy

US Patent:

20200393620, Dec 17, 2020

Filed:

Aug 31, 2020

Appl. No.:

17/007669

Inventors:

- East Granby CT, US
Kevin Farley - South Windsor CT, US
Jaroslaw Abramczyk - Farmington CT, US
Michael Conroy - East Granby CT, US
Kanishka Tankala - South Windsor CT, US

International Classification:

G02B 6/14
G02B 6/26
H01S 3/08
H01S 3/067
G02B 6/036
G02B 6/02

Abstract:

The present disclosure relates more to mode mixing optical fibers useful, for example in providing optical fiber laser outputs having a desired beam product parameter and beam profile. In one aspect, the disclosure provides a mode mixing optical fiber for delivering optical radiation having a wavelength, the mode mixing optical fiber having an input end, an output end, a centerline and a refractive index profile, the mode mixing optical fiber comprising: an innermost core, the innermost core having a refractive index profile; and a cladding disposed about the innermost core, wherein the mode mixing optical fiber has at least five modes at the wavelength, and wherein the mode mixing optical fiber is configured to distribute a fraction of the light input at its input end from its lower-order modes to its higher-order modes.

US Patent:

20190052043, Feb 14, 2019

Filed:

Feb 6, 2017

Appl. No.:

16/075573

Inventors:

- East Granby CT, US
Kevin Farley - East Granby CT, US
Jaroslaw Abramczyk - East Granby CT, US
Michael Conroy - East Granby CT, US
Kanishka Tankala - East Granby CT, US
Peyman Ahmadi - East Granby CT, US
Eric Lim - East Granby CT, US

International Classification:

H01S 3/067
G02B 6/14
G02B 6/036
C03B 37/027

Abstract:

The present disclosure relates more to mode mixing optical fibers useful, for example in providing optical fiber laser outputs having a desired beam product parameter and beam profile. In one aspect, the disclosure provides a mode mixing optical fiber that includes a core having a refractive index profile; and a cladding disposed about the core. The core of the mode mixing optical fiber supports at least two (e.g., at least five) guided modes at the wavelength. The mode mixing optical fiber is configured to substantially distribute optical radiation having the wavelength propagating therein (e.g., input at its input end or generated or amplified within the core) among a plurality of the guided modes (e.g., to distribute a substantial fraction of the optical radiation having the wavelength propagating therein from its lower-order guided modes to its higher-order guided modes).

US Patent:

20190011637, Jan 10, 2019

Filed:

Aug 12, 2016

Appl. No.:

15/752546

Inventors:

- Easy Granby CT, US
Kevin Farley - South Windsor CT, US
Jaroslaw Abramczyk - Farmington CT, US
Michael Conroy - East Granby CT, US
Kanishka Tankala - South Windsor CT, US

Assignee:

Nufem - East Granby CT

International Classification:

G02B 6/14
G02B 6/036
G02B 6/26
G02B 6/02
H01S 3/067

Abstract:

The present disclosure relates more to mode mixing optical fibers useful, for example in providing optical fiber laser outputs having a desired beam product parameter and beam profile. In one aspect, the disclosure provides a mode mixing optical fiber for delivering optical radiation having a wavelength, the mode mixing optical fiber having an input end, an output end, a centerline and a refractive index profile, the mode mixing optical fiber comprising: an innermost core, the innermost core having a refractive index profile; and a cladding disposed about the innermost core, wherein the mode mixing optical fiber has at least five modes at the wavelength, and wherein the mode mixing optical fiber is configured to distribute a fraction of the light input at its input end from its lower-order modes to its higher-order modes.