R. Stephen Weis
Texas Christian University
Department of Engineering
TCU Box 298640
Fort Worth, TX 76129
PH: (817) 257-7126
FAX: (817) 257-7704
S.Weis@tcu.edu
Steve Weis has been a member of the faculty of the Department of Engineering at Texas Christian University since August 1992. He received his B.S.E.E. degree from the United States Naval Academy in 1979, a M.S. in Electrical Engineering from Georgia Institute of Technology in 1984, and a Ph.D. in Electrical Engineering from Georgia Institute of Technology in 1987. From 1979 to 1984, Steve served as an officer in the U. S. Navy. Steve was a member of the USNA faculty in the Electrical Engineering Department from 1988 to 1992.
Research Interests
- Optical Fiber Sensor and Telemetry Systems
- Photonic devices and systems
- Smart Structures and Materials
- Embedded Systems and Microcontrollers
Teaching Interests
- Circuit Analysis
- Electronics
- Photonics
- Electromechanics
- Applied Electromagnetics
- Control Systems (especially microcontrollers)
Student Research Assistants
Brad Beadle - downhole telemetry link using fiber Bragg gratings, plastic optical fiber characterization
Curtis Norwood - plastic optical fiber characterization
Roberto Hernandez - LabView display of parallel port data, optical fiber pressure sensor
Brent Bachim - plastic optical fiber characterization, downhole telemetry links, borehold seismic sensor using optical fibers
Chad Lovell - borehole seismic sensor using optical fibers
Ben Ludington - LEGO robot course development, optical fiber pressure sensor, interferometric demodulators
Katie Gordon - multiplexed optical data link, interferometric demodulators
Kelly Nguyen: high temperature inclinometer testing and development
Akhil Thomas: Interferometric ballistic shock sensor developmentPatents
"Portable System for Measuring Dynamic Pressure In Situ and Method of Employment", F.D. Shirley, V.P. Chiarito, S.C. Woodson, P. Walter, R.S. Weis, U.S. Patent 7,266,986, September 11, 2007
"Optical Fiber Modulation and Demodulation System", R.S. Weis, U.S. Patent 5,898,517, April 27, 1999.
"Optical Fiber Modulation and Demodulation System", R.S. Weis, U.S. Patent 5,675,674, October 7, 1997.
"Optical Fiber Modulation and Demodulation System", R.S. Weis, U.S. Patent 5,808,779, September 15, 1998.
Selected Publications
"An Institute for Inquiry”, J. Kelly and S. Weis, Science and Children, vol. 42, no. 4, pp. 45-47, January 2005.
"Macrobend loss reduction of a fiber interferometer using graded-index multimode fiber”, B.T. Ludington and R. S. Weis, in 15th International Conference on Optical Fiber Sensors, pp. 531-534, May 2002.
"Source-noise-induced resolution limits of interferometric fiber Bragg grating sensor demodulation systems”, R. S. Weis and B. L. Bachim, Measurement Science and Technology, vol. 12, no. 7, pp. 782-785, July 2001.
"Source noise limits of interferometric phase-sensitive detection of fiber Bragg grating sensors”, R. S. Weis and B. L. Bachim, in 14th International Conference on Optical Fiber Sensors, vol. 4185, SPIE, pp. 74-77, October 2000. (also listed in section 14.e)
"Optical fiber telemetry systems for measurement-while-drilling applications”, R. S. Weis, B. L. Bachim, B. M. Beadle, and M. Gearhart, Optical Engineering, vol. 39, no. 6, 1591-1596, June 2000.
"A hands-on microcontroller project using mobile robots”, R. S. Weis, Computers in Education Journal, pp. 41- 44, April 1999.
"Longitudinal vibrations of a silica fiber segment characterized using a fiber Bragg grating”, B. M. Beadle and R. S. Weis, IEEE Trans. on Ultrasonics, Ferroelectrics, and Frequency Control vol. 45, no. 4, 1100-1104, July 1998.
"MWD telemetry system for coiled-tubing drilling using optical fiber grating modulators downhole”, R. S. Weis and B. M. Beadle, in 12th International Conference on Optical Fiber Sensors, vol. 16, OSA Technical Digest Series (Optical Society of America, Washington, DC, 1997), pp. 416-419. (also listed in section 14.e)
"Radial strain-induced attenuation in plastic optical fiber”, B. M. Beadle, R. S. Weis, and C. A. Norwood, Optical Engineering, vol.35, no. 6, pp. 1696-1699, June 1996.
"A four-element fiber grating sensor array with phase sensitive detection”, R. S. Weis, A. D. Kersey, and T. A. Berkoff, Photonics Technology Letters, vol. 6, no. 12, December 1994, pp. 1469-1472.
"Spectrally selective fiber interferometric filters for wavelength selection in fiber ring lasers”, R. S. Weis and A. D. Kersey, Proceedings of the Conference on Optical Fiber Communication/ International Conference on Integrated Optics and Optical Fiber Communication, San Jose, CA, February 1993, pp. 23-24. (also listed in section 14.e)
"Interferometric measurements of linewidth and phase noise of an Er-doped fiber ring laser”, R. S. Weis, A. D. Kersey, and I. N. Duling, III, Proceedings of the Eighth International Conference on Optical Fiber Sensors, Monterey, CA, January 1992, pp. 10-13. (also listed in section 14.e)
"Fiber optic two-beam interferometer fringe amplitude recovery using laser frequency control”, R. S. Weis and A. D. Kersey, Applied Optics, vol. 31, no. 16, pp. 2964-2966, June 1992.
"Visualization of modal irradiance patterns in an optical fiber”, R. S. Weis, IEEE Transactions on Education, vol. 35, no. 2, pp. 109-111, May 1992.
"Photoelastic coefficients of lithium niobate”, R. S. Weis, Section 2.3 in Properties of Lithium Niobate, INSPEC (Institute of Electrical Engineers), London, 1989, pp. 34 - 37.
"Pyroelectric coefficient of lithium niobate”, R. S. Weis, Section 4.6 in Properties of Lithium Niobate, INSPEC (Institute of Electrical Engineers), London, 1989, p. 127.
"Turbo Pascal graphics procedures for IBM-PC", R. S. Weis, Computers in Education Journal, vol. IX, no. 3, pp. 24-30, July-September 1989.
"Magneto-optic multilayered memory structure with a birefringent supersaturate: A rigorous analysis”, R. S. Weis and T. K. Gaylord, Applied Optics, vol. 28, no. 10, pp. 1926-1930, May 1989.
"Fabry-Perot/Solc filter with distributed Bragg reflectors: A narrow-band electro-optically tunable spectral filter”, R. S. Weis and T. K. Gaylord, Journal of the Optical Society of America A, vol. 5, no. 9, pp. 1565-1570, September 1988.
"Electromagnetic transmission and reflection characteristics of anisotropic multilayered structures”, R. S. Weis and T. K. Gaylord, Journal of the Optical Society of America A, vol. 4, no. 9, pp. 1720-1740, September 1987.
"Lithium niobate: Summary of physical properties and crystal structure”, R. S. Weis and T. K. Gaylord, Applied Physics A, vol. 36, no. 4, pp. 191-203, August 1985. (invited paper)
"Interferometric measurements of linewidth and phase noise of an Er-doped fiber ring laser", R. S. Weis, A. D. Kersey, and I.N. Duling, III, in Eighth International Conference on Optical Fiber Sensors (1992), pp. 10-13.
"Rugged telemetry system for coiled-tubing earth drilling", R.S. Weis and B. M. Beadle, in Third Pacific Northwest Fiber Optic Sensor Workshop, Eric Udd and Chuck C. Jung, Eds., Proc. SPIE 3180, 67-72 (1997).
"MWD telemetry system for coiled-tubing drilling using optical fiber grating modulators downhole", R. S. Weis and B. M. Beadle, in 12th International Conference on Optical Fiber Sensors, OSA Technical Digest Series 16, 416-419 (1997).
"A rugged telemetry system: Testing results and design improvements", R. S. Weis, B. M. Beadle, and B. L. Bachim, in Fourth Pacific Northwest Fiber Optic Sensor Workshop, Eric Udd and Chuck C. Jung, Eds., Proc. SPIE 3489, 101-104 (1998).
"Longitudinal vibrations of a silica fiber segment characterized using a fiber Bragg grating", B. M. Beadle and R. S. Weis, IEEE Trans. on Ultrason., Ferroelec., and Freq. Control 45(4), 1100-1104 (1998).
"Electromagnetic transmission and reflection characteristics of anisotropic multilayered structures", R. S. Weis and T. K. Gaylord, J. Opt. Soc. Am. A., vol. 4, pp. 1720-1740, 1987.
"The DBR Fabry-Perot/Solc filter: A narrow-band electro-optically tunable spectral filter", R. S. Weis and T. K. Gaylord, J. Opt. Soc. Am. A, vol. 5, pp. 1565-1570, Sept. 1988.
"Magneto-optic multilayered memory structure with a birefringent supersaturate: A rigorous analysis", R. S. Weis and T. K. Gaylord, Applied Optics, vol. 28, pp. 1926-1930, 15 May 1989.
"Turbo Pascal graphics procedures for IBM-PC", R. S. Weis, Computers in Education Journal, vol. IX, pp. 24-30, July-September 1989.
"Fiber optic two-beam interferometer fringe amplitude recovery using laser frequency control", R. S. Weis and A. D. Kersey, Applied Optics, Vol. 31, pp.2964 - 2966, 1 June 1992.
"Visualization of modal irradiance patterns in an optical fiber", R. S. Weis, IEEE Transactions on Education, Vol. 35, pp. 109 - 111, May 1992.
"A four-element fiber grating sensor array with phase sensitive detection", R. S. Weis, A. D. Kersey, and T. A. Berkoff, Photonics Technology Letters, vol. 6, no. 12, December 1994.
"Radial strain-induced attenuation in plastic optical fiber", B. M. Beadle, R. S. Weis, and C. A. Norwood, Optical Engineering, vol.35, no. 6, pp. 1696-1699, June 1996.