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Specialists in Mechanical Testing and Reliability of Optical Fibers

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About Fiber Sigma

Fiber Sigma was founded by Dr. John Matthewson in order to make mechanical test equipment available to the optical fiber community at large. Most of our equipment is unique in that it is not available commercially elsewhere. Fiber Sigma equipment is now in use in most of the large optical fiber research and testing laboratories around the world. Click here to see a partial list of our clients.

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M. John Matthewson MA PhD CPhys MInstP

John Matthewson received his BA degress in Natural Sciences/Theoretical Physics and MA and PhD degrees in Physics from Cambridge University. After obtaining his doctorate, he was the Goldsmiths Junior Research Fellow at Churchill College, Cambridge. He has worked at Cambridge University Computer Department, AT&T Bell Laboratories (postdoctoral advisor Dr. Charles "Chuck" Kurkjian)and IBM Almaden Research Center. He currently leads the Photonics Components Reliability Group at Rutgers University where he is Professor of Materials Science and Engineering. Click here for more details. His research is in the field of fiber mechanical characterization and reliability. Dr. Matthewson has published over 100 papers in the general area of mechanical behavior of materials, many of which are concerned with the strength, fatigue and reliability of optical fibers. He is co-author of the second edition of the book Mechanical Properties of Ceramics, J.B. Wachtman, W.R. Cannon and M.J. Matthewson, Wiley, April 2009. Dr. Matthewson received the Outstanding Educator Award from the American Ceramic Society and has received several awards for excellence in teaching from the students at Rutgers University where he teaches undergraduate Strength of Materials, undergraduate Electronic, Optical and Magnetic Properties of Materials and graduate Thermodynamics of Materials Systems. He taught the undergraduate Physics of Materials course for many years, as well as several other courses. He is a Fellow of the American Ceramic Society. Stanford University's 2022 citation analysis ranks Dr. Matthewson within the top 1% of world scientists in the field of Optoelectronics & Photonics.

Selected Publications:

bulletM. J. Matthewson, C. R. Kurkjian & S. T. Gulati (1986) "Strength measurement of optical fibers in bending" J. Am. Ceram. Soc. 69 (11) 815-821.
bulletM. J. Matthewson & C. R. Kurkjian (1987) "Static fatigue of optical fibers in bending" J. Am. Ceram. Soc. 70 (9) 662-668.
bulletM. J. Matthewson (1994) "Optical fiber mechanical testing techniques" SPIE Critical Review Series CR50 32-59.
bulletM. J. Matthewson (1994) "Optical fiber reliability models" SPIE Critical Review Series CR50 3-31.
V. V. Rondinella, M. J. Matthewson & C. R. Kurkjian (1994) "Coating additives for improved mechanical reliability of optical fiber" J. Am. Ceram. Soc. 77 [1] 73-80.
bulletG. J. Nelson, M. J. Matthewson & B. Lin (1996) "A novel four-point bend test for strength measurement of optical fibers and thin beams, part 1: bending analysis" J. Lightwave Tech. 14 [4] 555-563.
bulletM. J. Matthewson, B. Lin & A. P. Stanzeski (1994) "Modeling weak optical fiber using Vicker's indentation" OFC’94 Technical Digest 5 245, OSA, Salem, MA, 1994.

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