Optical fiber connector ferrule assembly having dual reflective surfaces for beam expansion and expanded beam connector incorporating same

Li, Shuhe; Vallance, Robert Ryan; Dannenberg, Rand D.; Gean, Matthew; Klotz, Gregory L.

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A - human necessities
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Title: Optical fiber connector ferrule assembly having dual reflective surfaces for beam expansion and expanded beam connector incorporating same

Abstract

An expanded beam ferrule includes a first ferrule halve having first reflective surfaces and a second ferrule halve having second reflective surfaces, which together retain optical fibers. The pair of reflective surfaces output collimated light parallel to the mid-plane of the ferrule. An external sleeve aligns the external surface of two similar ferrules, with corresponding second reflective surfaces of the ferrules facing each other. Output light from an optical fiber held in one ferrule is bent twice by the pair of reflective surfaces, with beam divergence after the first bent, and collimation after the second bent. The collimated light is transmitted to the facing second reflective surface in a facing second ferrule aligned by the sleeve, which is subject to optical reshaping in reverse to that undertaken in the first ferrule, so as to converge and focus light to input to the optical fiber held in the other ferrule.

Inventors:: Li, Shuhe; Vallance, Robert Ryan; Dannenberg, Rand D.; Gean, Matthew; Klotz, Gregory L.

Issue Date:: Tue Jul 14 00:00:00 EDT 2020

Research Org.:: Cudoquanta Florida, Inc., Sarasota, FL (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1735023

Patent Number(s):: 10712503

Application Number:: 16/363,782

Assignee:: Cudoquanta Florida, Inc. (Sarasota, FL)

Patent Classifications (CPCs):: G - PHYSICS G02 - OPTICS G02B - OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS

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G - PHYSICS G02 - OPTICS G02B - OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
G02B6/3818 - {of a low-reflection-loss type
G02B6/383 - {Hermaphroditic connectors, i.e. two identical plugs mating with one another, each plug having both male and female diametrically opposed engaging parts
G02B6/3839 - {for a plurality of light guides}
G02B6/3849 - {using mechanical protective elements, e.g. caps, hoods, sealing membranes
G02B6/3865 - {fabricated by using moulding techniques
G02B6/3874 - {using tubes, sleeves to align ferrules}
G02B6/3885 - {Multicore or multichannel optical connectors, i.e. one single ferrule containing more than one fibre, e.g. ribbon type
G02B6/3893 - {Push-pull type, e.g. snap-in, push-on}
G02B6/4214 - {the intermediate optical element having redirecting reflective means, e.g. mirrors, prisms for deflecting the radiation from horizontal to down- or upward direction toward a device
G02B6/4403 - {with ribbon structure

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DOE Contract Number:: SC0009617

Resource Type:: Patent

Resource Relation:: Patent File Date: 03/25/2019

Country of Publication:: United States

Language:: English

Subject:: 42 ENGINEERING

Citation Formats


                    Li, Shuhe, Vallance, Robert Ryan, Dannenberg, Rand D., Gean, Matthew, and Klotz, Gregory L. Optical fiber connector ferrule assembly having dual reflective surfaces for beam expansion and expanded beam connector incorporating same.  United States: N. p., 2020. 
        Web.

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                    Li, Shuhe, Vallance, Robert Ryan, Dannenberg, Rand D., Gean, Matthew, & Klotz, Gregory L. Optical fiber connector ferrule assembly having dual reflective surfaces for beam expansion and expanded beam connector incorporating same.  United States.

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                    Li, Shuhe, Vallance, Robert Ryan, Dannenberg, Rand D., Gean, Matthew, and Klotz, Gregory L. Tue .  
        "Optical fiber connector ferrule assembly having dual reflective surfaces for beam expansion and expanded beam connector incorporating same".  United States.  https://www.osti.gov/servlets/purl/1735023.

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@article{osti_1735023,

  title        = {Optical fiber connector ferrule assembly having dual reflective surfaces for beam expansion and expanded beam connector incorporating same},

  author       = {Li, Shuhe and Vallance, Robert Ryan and Dannenberg, Rand D. and Gean, Matthew and Klotz, Gregory L.},

  abstractNote = {An expanded beam ferrule includes a first ferrule halve having first reflective surfaces and a second ferrule halve having second reflective surfaces, which together retain optical fibers. The pair of reflective surfaces output collimated light parallel to the mid-plane of the ferrule. An external sleeve aligns the external surface of two similar ferrules, with corresponding second reflective surfaces of the ferrules facing each other. Output light from an optical fiber held in one ferrule is bent twice by the pair of reflective surfaces, with beam divergence after the first bent, and collimation after the second bent. The collimated light is transmitted to the facing second reflective surface in a facing second ferrule aligned by the sleeve, which is subject to optical reshaping in reverse to that undertaken in the first ferrule, so as to converge and focus light to input to the optical fiber held in the other ferrule.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {Tue Jul 14 00:00:00 EDT 2020},

  month        = {Tue Jul 14 00:00:00 EDT 2020}

}

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Works referenced in this record:

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Li, Shuhe; Klotz, Gregory L.; Barnoski,
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Multi-Fiber Ferrule with Improved Eye Safety
patent-application, November 2016

Childers, Darrell R.; Hughes, Michael E.; Kurtz, Daniel D.
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URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20160341909