3m Innovative Properties Company

Ofs Fitel, LLC

Jerome C Porque

Terry Lee Smith

Paul S Westbrook

Jeffrey W Nicholson

Jun-Ying Zhang

James Francis Brennan, Iii

Haiyan Zhang

Ding Wang

John C Hulteen

William R Holland

Tristan Kremp

Clifford E Headley

Xudong Fan

David B Stegall

Levent Biyikli

Kazi S Abedin

James M Battiato

Lisa Dick

Michael R Matthews

William J Strachan

Pranay G Sinha

Lalitkumar Bansal

Hao Dong

Andrea Rosales-Garcia

An all-glass cladding mode stripper comprises a plurality of high refractive index, small diameter glass beads disposed along an exposed portion of the inner cladding region of an optical fiber. The unwanted low NA signal light (as well as any other type of stray light) propagating within the cladding layer is removed by refracting into the adjacent beads, where this captured light then scatters away from the optical fiber.

Cladding mode stripper for use with optical systems and methods of forming the same

A Raman distributed feedback (DFB) fiber laser is disclosed. It includes a pump source and a Raman gain fiber of a length smaller than 20 cm containing a distributed feedback (DFB) grating with a discrete phase structure located within no more than 10% off the center of the grating and wherein the Raman DFB fiber laser generates a laser signal with an optical spectrum, which has an optical bandwidth at half maximum optical intensity of less than 1 gigahertz (GHz) (wherein a maximum intensity frequency is different from the frequency of the pump laser). The Raman laser includes compensation for the nonlinear phase change due to Kerr effect and thermal effect resulting from absorption of the optical field, thus enhancing the conversion efficiency.

Raman distributed feedback fiber laser and high power laser system using the same

Embodiments of the invention include a fiber laser cavity package having improved fiber management and thermal management capability and methods of making such fiber laser cavity package. Each element of the fiber laser cavity is grouped into plurality of sections and each section is placed onto a heat conducting surface within the fiber laser cavity package to dissipate unwanted heat from the elements. When the fiber laser cavity is stored in the package, the fiber laser cavity is arranged such that fiber crossings are substantially reduced or eliminated within the package.

Fiber laser cavity optical engine package and method of making the same

Provided is a method of making microarrays that includes providing a substrate with discrete first microfeatures that have a first profile, and depositing vapor-coated materials onto the first microfeatures to form second microfeatures having a second profile that is substantially different from the first profile. Also provided is a method of adding a replication material to the vapor-coated microfeatures to form a mold. Microarrays made by this method can be used as substrates for surface-enhanced Raman spectroscopy (SERS).

Method of making microarrays

A method and system are provided for fabricating three-dimensional (3D) structures having micron or submicron features. The method includes providing a continuously-formed relief structured material, the relief structured material having a first layer comprising a material having a pattern of relief structures formed on a first surface thereof. The structured material includes second layer comprising a photosensitive material that is disposed on the first layer. The relief structured material is exposed to radiation through the first layer, where the pattern of relief structures formed on the first surface of the first layer generates a 3-dimensional light intensity pattern of the radiation that is incident on the second layer. The exposed material is developed, where the developed material comprises a plurality of 3D structures having micron or submicron features.

Method and system for fabricating three-dimensional structures with sub-micron and micron features

A system and method for fabricating structures in an optical substrate. An optical element produces first and second write beams that intersect at a first intersection location at the optical substrate. The first intersection location includes a fringe pattern produced by the first and second write beams. The optical element also produces first and second reference beams that intersect and are recombined at a second intersection location in substantially the same plane as the first intersection location. A controller then controls relative positioning between the optical substrate and the fringe pattern based on a signal derived from the recombined first and second reference beams.

Fabrication of structures in an optical substrate

A method for screening the quality of an optical component including the step of simulating the performance of the optical component. The step of simulating includes the step of measuring the optical phase &phgr; of the optical component, wherein the step of measuring comprises indirectly measuring the optical phase &phgr; of the optical component using a scanning laser having a scanning step size &Dgr;&ohgr; and a modulation frequency &ohgr; such that &Dgr;&ohgr;/&ohgr; . The light throughput R of the optical component is then measured. A transfer function H as a function of optical frequency &ohgr; is constructed where H(&ohgr;)&equals;R(&ohgr;)exp&lsqb;j&phgr;(&ohgr;)&rsqb;, and the performance is simulated using the measured value of the optical phase and the light throughput into the transfer function.

Quality review method for optical components using a fast system performance characterization

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Bridgewater, NJ, United States of America

Jerome C Porque