Advalue Photonics, Inc.

Np Photonics, Inc.

Beamtek, Inc.

The University of Arizona

Shibin Jiang

Tao Luo

Qing Wang

Jihong Geng

Lei Pan

Arturo Chavez-Pirson

Yushi Kaneda

Christine Spiegelberg

Sergio Brito Mendes

Wenyan Tian

Dan Trung Nguyen

Matthew A Leigh

Jie Zong

Wei Shi

Thomas Nikolajsen

Jianfeng Wu

Nasser N Peyghambarian

Yongdan Hu

Ewan Wright

Karine Seneschal

Weijiong Li

Jiafu Wang

Ping Li

Philip Lam

Qingyun Chen

Sandrine Hocde

Gualtiero Nunzi Conti

Bryson Case

Bor-Chyuan Hwang

Nayer Eradat

Garrett Coleman

Maohe Li

Christine Speigelberg

Ronald Pollock

Ik Joon Song

Sean Staines

Zhuo Jiang

Chih-Jen Chi

Eugene Merzlyak

Gary Paysnoe

Bryan Steward

Method for fabricating of all-optical-fiber based optical polarizer devoid of fusing of first and second optical fibers. The method includes a process of forming a substantially adiabatic optical fiber taper by pulling an optical fiber and interrupting this process when an optical power parameter measured at an output of the optical fiber is reduced below a pre-defined threshold as a result of said pulling. An optically-tapered single-mode polarization-maintaining optical fiber element fabricated according to the method and configured as such all-optical-fiber polarizer.

Fabrication and use of all-optical-fiber polarizer

An IR-transmitting glass fiber configured to include a holey-microstructured core and a cladding surrounding the core. Glass material used at least in the core is one of the heavy metal oxide glasses, where the glass network former is an oxide selected from GeO, TeO, SbO, and BiO, while each and every component of the fiber includes only an oxide glass material and is devoid of any other materials.

Configuring infrared optical fibers from oxide glasses

Method and system for a laser welding process employing the use of a single pulsed fiber laser source configured to generate a radiative output with a wavelength spectrum extending from about 1.8 microns to about 2.6 microns. In a specific case, the laser output from the single pulsed fiber laser source is focused onto the interface of the two pieces of materials at least one of which includes any of glasses, inorganic crystals, and semiconductors.

Laser welding utilizing broadband pulsed laser sources

A method for fabricating an optical fiber coupler device includes a step of tangibly fusing a first outer cladding of a first optical fiber with a second outer cladding of a second optical fiber as a result of pulling and heating the first and second optical fibers at lengths not exceeding 3 mm to form a first region of structurally-integrated with one another first and second optical fibers, and a step of heating a second, neighboring region of these fibers to configure the device to transmit optical power of at least about a hundred Watts and up to at least a kWatt from the input end to the output end with a value of throughput loss not exceeding 0.2 dB.

Fiber coupler and method for fabrication of the same

Ultrashort pulse fiber amplifier having a pulse width from 200 ps to 200 fs comprising a rare earth oxide doped multicomponent glass fibers for laser amplification, including a core and a cladding, the core comprising at least 2 weight percent glass network modifier selected from BaO, CaO, MgO, ZnO, PbO, KO, NaO, LiO, YO, or combinations; wherein the mode of the core is guided with step index difference between the core and the cladding, a numerical aperture of the fiber is between 0.01 and 0.04; core diameter is from about 60 microns to about 150 microns, and a length of the gain fiber is shorter than 60 cm.

Ultrashort pulse fiber amplifier with rare-earth doped gain fibers

Ultrashort pulse fiber amplifier having a pulse width from 200 ps to 200 fs comprising a rare earth oxide doped multicomponent glass fibers for laser amplification, including a core and a cladding, the core comprising at least 2 weight percent glass network modifier selected from BaO, CaO, MgO, ZnO, PbO, KO, NaO, LiO, YO, or combinations; wherein the mode of the core is guided with step index difference between the core and the cladding, a numerical aperture of the fiber is between 0.01 and 0.04; core diameter is from 25 to 120 micron, and a length of the gain fiber is shorter than 60 cm.

Ultrashort pulse fiber amplifier using rare-earth doped gain fibers

Rare earth oxides doped multicomponent glass fibers for laser generation and amplification, including a core and a cladding, the core comprising at least 2 weight percent glass network modifier selected from BaO, CaO, MgO, ZnO, PbO, KO, NaO, LiO, YO, or combinations; wherein the mode of the core is guided with step index difference between the core and the cladding, a numerical aperture of the fiber is between 0.01 and 0.04; core diameter is from 25 to 120 micron, and a length of the gain fiber is shorter than 60 cm.

Rare-earth doped gain fibers

Rare earth oxides doped multicomponent glass fibers for laser generation and amplification, including a core and a cladding, the core comprising at least 2 weight percent glass network modifier selected from BaO, CaO, MgO, ZnO, PbO, KO, NaO, LiO, YO, or combinations; wherein the mode of the core is guided with step index difference between the core and the cladding, a numerical aperture of the fiber is between 0.01 and 0.04; core diameter is from 60 to 150 micron, and a length of the gain fiber is shorter than 60 cm.

A laser material processing system which includes a pulsed fiber laser source having a continuous wavelength bandwidth of larger than 100 nm and pulse width of from 100 femtosecond to 1 microsecond, a broad band laser emitted from one core of an optical fiber, where the broad band laser is applied to a subject material to produce removal of the subject material and/or color change of the subject material.

Laser processing system using broad band pulsed lasers

A fiber amplifier is disclosed having a core region embedded within a cladding. The core region further has multiple sections, each of which is doped with at least one rare-earth ion.

Fiber amplifier with multi section core

An optical fiber which includes a core region embedded within a cladding. The core region of the optical fiber further comprises multiple sections, each doped with rare earth ions.

Optical fiber with multi section core

Growing community of inventors

Tucson, AZ, United States of America

Shibin Jiang