# US 10,118,853 B2 · Systems and methods for producing robust chalcogenide optical fibers

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- Number: US 10,118,853 B2
- Document ID: US10118853B2
- Status: Granted
- Kind: B2
- Application number: 15/177,894
- Filed: 2016-06-09
- Published: 2016-11-10
- Granted: 2018-11-06
- Earliest claimed: 2012-05-03
- Assignees: University of Central Florida Research Foundation, Inc.
- Applicants: University of Central Florida Research Foundation, Inc.
- Inventors: Ayman F. Abouraddy; Guangming Tao; Soroush Shabahang
- Web page: https://patentgrep.com/patent/US10118853B2

## CPC

- C03B 37/01274: {by extrusion or drawing}
- C03B 37/01205: {starting from tubes, rods, fibres or filaments (C03B37/014 takes precedence)}
- C03B 37/026: Drawing fibres reinforced with a metal wire {or with other non-glass material}
- C03B 37/027: Fibres composed of different sorts of glass, {e.g. glass optical fibres}(C03B37/0253, C03B37/028 take precedence)
- C03C 3/321: {Chalcogenide glasses, e.g. containing S, Se, Te}
- C03C 4/10: for infrared transmitting glass
- C03C 13/043: {Chalcogenide glass compositions}
- C03C 25/106: Single coatings
- C03C 25/18: Extrusion
- G02B 1/00: Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B 1/10: Optical coatings produced by application to, or surface treatment of, optical elements (G02B1/08 takes precedence)
- G02B 6/02395: {Glass optical fibre with a protective coating, e.g. two layer polymer coating deposited directly on a silica cladding surface during fibre manufacture (G02B6/02052, G02B6/02057, G02B6/024, G02B6/032, G02B6/105, G02B6/14 take precedence; coating on fibre gratings G02B6/02104; multilayer core or cladding G02B6/036; reinforcing splice joints G02B6/2558; optical cables, i.e. comprising protective structures external to the protective coating such as a jacket or plural coated optical fibres G02B6/44; coating of glass to obtain optical fibres C03C25/104)}
- G02B 6/036: core or cladding comprising multiple layers {(multicore optical fibres G02B6/02042; microstructured properties G02B6/02295; omniguide fibres G02B6/023)}
- A61K 6/833: Glass-ceramic composites
- C03B 2201/86: Chalcogenide glasses, i.e. S, Se or Te glasses
- C03C 2204/00: Glasses, glazes or enamels with special properties
- C03C 2213/00: Glass fibres or filaments
- Y10T 428/239: Complete cover or casing
- Y10T 428/24612: Composite web or sheet
- Y10T 428/31533: Of polythioether
- C03B: MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03C: CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- A61K: PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES (devices or methods specially adapted for bringing pharmaceutical products into particular physical or administering forms A61J3/00; chemical aspects of, or use of materials for deodorisation of air, for disinfection or sterilisation, or for bandages, dressings, absorbent pads or surgical articles A61L; soap compositions C11D)
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

In one embodiment, a chalcogenide glass optical fiber is produced by forming a billet including a chalcogenide glass mass and a polymer mass in a stacked configuration, heating the billet to a temperature below the melting point of the chalcogenide glass, extruding the billet in the ambient environment to form a preform rod having a chalcogenide glass core and a polymer jacket, and drawing the preform rod.

## Claims

### Claim 1

A billet or preform, comprising:
a first chalcogenide glass mass;
a second chalcogenide glass mass; and
a polymer mass having an axial void,
wherein the first and second chalcogenide glass masses are arranged in a non-overlapping stacked configuration, further wherein the first and second stacked chalcogenide glass masses are disposed within the void of the polymer mass.

### Claim 2 (depends on 1)

The billet of claim 1, wherein the first chalcogenide glass mass is one of As2Se3 and As2Se1.5S1.5.

### Claim 3 (depends on 1)

The billet of claim 1, wherein the second chalcogenide glass is As2S3.

### Claim 4 (depends on 1)

The billet of claim 1, wherein the polymer is one of polyethersulfone or polyetherimide.