Daniel Harper, Jr. - Kennesaw GA John M. Turnipseed - Lilburn GA Carl R. Taylor - Lawrenceville GA Priya L. Tabaddor - Alpharetta GA James R. Petisce - West Dundee IL
Assignee:
Fitel USA Corp. - Norcross GA
International Classification:
B05D 506
US Classification:
4271632, 427286, 4274071, 118125, 118255, 385128
Abstract:
A coated fiber strand including at least one heterogeneous region present in one or more coating layers. The heterogeneous region(s) preferably comprises a material useful for coding of the fiber. The optical fiber can include a primary coating layer and a secondary coating layer where the heterogeneous region(s) defines one or more colored stripes in or on the secondary coating layer. A method for forming a coated fiber, such as an optical fiber, includes introducing at least one coating layer onto a fiber strand such that one or more coating layers cover a portion of the surface of the strand. At least one heterogeneous region is introduced into or onto one or more coating layers, and the strand is cured to provide a desired product. A desired functionality, e. g. , coding, can thus be introduced onto a fiber without adversely effecting subsequent processing steps, e. g.
System And Method For Manufacturing Color-Coated Optical Fiber
Mark Bertz - Alpharetta GA, US Robert C. Moore - Roswell GA, US John M. Turnipseed - Lilburn GA, US Shunhe Xiong - Shrewsbury MA, US
Assignee:
Fueukawa Electric North America, Inc. - Norcross GA
International Classification:
B05C 3/12
US Classification:
118420, 118125, 118683
Abstract:
Embodiments of the invention include a system and method for color-coating an optical fiber. The system includes a flow controller that controllably delivers and mixes color concentrate from one or more color concentrate reservoirs with a coating material, which colored coating material is fed to a coating die through which optical fiber passes. The color concentrate reservoirs are more compact and can be made portable along with the flow controller. Thus, the entire color coating system can travel to any appropriate location in the fiber manufacturing facility, e. g. , at any one of a number of draw towers. Such portability allows many different colors to be used at the same draw tower much more easily than conventional arrangements, which typically only have one color line per draw tower. The method includes providing an optical fiber, controllably delivering color concentrate with a coating material to a coating die, coating the optical fiber with the coating die, and curing the coated fiber.
Methods And Apparatus For Coloring Optical Fibers During Draw
Shunhe Xiong - Alpharetta GA, US Zhi Zhou - Lawrenceville GA, US John Turnipseed - Lilburn GA, US
International Classification:
B05D005/06 B05D001/36
US Classification:
385/103000, 427/162000, 427/402000
Abstract:
The present invention provides coating methods for use in the manufacture of coated optical fibers. The coating methods of the present invention coat an optical fiber with a primary coating material that has a non-reactive colorant. A secondary coating material is applied over the primary coating material. The primary coating material may either be cured prior to application of the secondary coating material or both the primary and secondary coating materials may be cured at the same time to create primary and secondary coating layers over the optical fiber. In one embodiment, the secondary layer is formed of a substantially transparent material, visibly exposing the colored primary coating layer for inspection and/or measurement. The present invention further provides coated optical fibers made according to the coating methods of the present invention.
Systems And Methods Involving Optical Fibers Having Separate Color Layers
Nirupama Kenkare - Tucker GA, US Robert Moore - Roswell GA, US John Turnipseed - Lilburn GA, US Shunhe Xiong - Alpharetta GA, US
International Classification:
G02B006/22 B05D005/06
US Classification:
385/128000, 427/163200
Abstract:
An optical fiber including a layer of primary coating material having a first modulus, a layer of color coating material having a second modulus, a layer of secondary coating having a third modulus, and wherein the first modulus, the second modulus, and the third modulus are different values.
Coated Fiber Strands Having One Or More Heterogeneous Regions And Methods Of Making The Same
Daniel Harper - Kennesaw GA John M. Turnipseed - Lilburn GA Carl R. Taylor - Lawrenceville GA Priya L. Tabaddor - Alpharetta GA James R. Petisce - West Dundee IL
Assignee:
Lucent Technologies Inc. - Murray Hill NJ
International Classification:
G02B 602
US Classification:
385128
Abstract:
A coated fiber strand includes one or more coating layers located directly or indirectly on the strand and at least one heterogeneous region present in or on one or more of the coating layer(s). The heterogeneous region(s) preferably comprises a material useful for coding of the fiber. One particularly preferred embodiment relates to an optical fiber having a primary coating layer and a secondary coating layer where the heterogeneous region(s) defines one or more colored stripes in or on the secondary coating layer. A method for forming a coated fiber, such as an optical fiber, includes introducing at least one coating layer onto a fiber strand such that one or more coating layers directly or indirectly cover at least a portion of the surface of the strand. The method further includes introducing at least one heterogeneous region into or onto a coating layer(s). The fiber can then be treated, e. g.
J. Thomas Chapin - Alpharetta GA Addison G. Hardee - Dunwoody GA Charles M. Leshe - Lawrenceville GA Bob J. Overton - Lawrenceville GA John W. Shea - Chamblee GA Carl R. Taylor - Lawrenceville GA John M. Turnipseed - Lilburn GA
Assignee:
AT&T Bell Laboratories - Murray Hill NJ
International Classification:
C03C 2502
US Classification:
65 31
Abstract:
Methods are provided for making an optical fiber transmission medium which includes optical fiber (21) provided with a coating system (31) typically including two layers each of a different coating material. An inner layer (32) of a first coating material is called the primary coating and an outer layer is termed the secondary. In order to achieve desired performance characteristics, performance is related to properties of a coating system. The coating materials have well defined moduli and the second coating material has an elongation which is substantially less than in prior secondary coating materials. Adhesion levels which are optimized rather than maximized are substantially stable with respect to time. Curing of the coating materials may be accomplished simultaneously or in tandem with the application separately of the coating materials.
Raymond Peter DeFabritis - Lilburn GA Kenneth Wade Jackson - Snellville GA Kariofilis Konstadinidis - Decatur GA Shahabuddin Siddiqui - Lawrenceville GA Neil Wilbur Sollenberger - Duluth GA Carl Raymond Taylor - Lawrenceville GA John Michael Turnipseed - Lilburn GA
Assignee:
Lucent Technologies Inc. - Murray Hill NJ
International Classification:
G02B 644
US Classification:
385114
Abstract:
An optical fiber ribbon in which a plurality of optical fibers are held in an array has a matrix material for bonding to the fibers to form the ribbon. The matrix material has certain characteristics which serve to enhance fiber access, among which are an elastic modulus from 600 to 1200 MPa at room temperature, from 100 to 280 MPa at 100. degree. C. , and from 15 to 45 MPa at temperatures greater than 170. degree. C. The matrix material swells in ethanol more than 15% by volume within 20 minutes, and is virtually immune to the action of cleaning solvents. The matrix material has a surface tension of 20-35 mJ/m. sup. 2 as do the color coding inks which identify the fibers.
Mode Mixing Buffered Optical Fiber Apparatus And Method For Making
David Kalish - Roswell GA Paul Emilien Neveux - Loganville GA Albert John Ritger - Lawrenceville GA Carl Raymond Taylor - Lawrenceville GA John Michael Turnipseed - Lilburn GA
Assignee:
Lucent Technologies Inc. - Murray Hill NJ
International Classification:
G02B 602 G02B 622
US Classification:
385128
Abstract:
Embodiments of the invention include an optical energy transmission system, method and apparatus having improved mode coupling. According to embodiments of the invention, an optical energy transmission medium such as an optical fiber includes bubbles formed therein for inducing microbending of the optical energy transmission medium, thus promoting advantageous mode coupling, which improves bandwidth potential by reducing dispersion. The bubbles are formed, e. g. , in one or more buffer region layers and/or at the interface between the coating and buffer regions. The method for manufacturing the inventive optical energy transmission medium includes controllably forming one or more buffer region layers around the coated optical fiber or other transmission medium in such a way that that a desired amount of bubbles is created and maintained within one or more of the buffer region layers and/or at the interface between the coating and buffer regions. The bubbles form controlled perturbations that enhance mode coupling to the extent that bandwidth of the optical fiber is improved. The quantity and size of the bubbles formed in the optical energy transmission medium are controlled by, e. g.