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James van Howe

Visiting Professor

[email protected]

James van Howe is an Associate Professor in the Department of Physics and Astronomy at Augustana College in Rock Island, IL. He received his B.A. in physics at University of Chicago in 2001, and his M.S. and Ph.D. in physics from Cornell University in 2005 and 2007, respectively. While at Cornell and Augustana, his research has focused on the development of ultrafast pulsed laser sources for biomedical imaging and novel techniques in optical signal processing. He was a visiting scientist at INRS-EMT in the summer of 2012 and 2016 for work on ultrafast optical signal processing. He is currently on professional leave from Augustana College (simultaneously enrolled in the MSc program) where his research at INRS-EMT involves applying classical telecom signal processing techniques to single and entangled photons for quantum information.

  1. J. Jeon, R. Maram, J. van Howe and J. Azaña, “Programmable Passive Waveform Amplifier based on the Temporal Talbot Effect,” Opt. Exp., Vol 26, No. 6, pp. 6872-6879, 2018.
  2. R. Maram, M. Seghilani, J. Jeon, X. Li, J. van Howe, L.R. Cortés and J. Azaña, “Demonstration of input-to- output gain and temporal noise mitigation in a Talbot amplifier,” IEEE Photon. Technol. Lett., Vol. 30, No. 8, pp. 665-668, 2018.
  3. *R. Maram, J. van Howe, L.R. Cortés and J. Azaña “Energy-preserving repetition rate control of periodic pulse trains using temporal Talbot effects,” J. of Lightwave Tech., Vol. 35, No. 4, pp. 1-11, 2017.
  4. R. Maram, J. van Howe, M. Li and J. Azaña, “Lossless Fractional Repetition-Rate Multiplication of Optical Pulse Trains,” Opt. Lett., Vol. 40, No. 5, pp. 375-377, 2015.
  5. R. Maram, J. van Howe, M. Li and J. Azaña, “Passive, Noiseless, Intensity Amplification of Repetitive Signals,” Nat. Comm., Vol. 5, Article No. 5163, 2014.
  6. M. Durst and J. van Howe, “All-fiber, Wavelength and Repeition-Rate Tunable, Ultrafast Pulse Generation in the 2.0 micron Region Without Mode-locking,” J. of Lightwave Tech., Vol. 31, No. 23, pp. 3714-3718, 2013.
  7. *J. H. Lee, J. van Howe, C. Xu and X. Liu, “Soliton Self-Frequency Shift: Experimental Demonstrations and Applications,” J. Sel. Topics in Quantum Elec., Vol. 14, No. 3, pp. 713-723, 2008.
  8. J. van Howe, J. Lee and C. Xu, “Generation of 3.5 nJ femtosecond pulses from a CW laser without mode-locking,” Opt. Lett., Vol. 32, No. 11, pp. 1408-1410, 2007.
  9. J. van Howe, J. Lee, S. Zhou, F. Wise, C. Xu, S. Ramachandran, S. Ghalmi and M. F. Yan, “Demonstration of soliton self-frequency shift below 1300 nm in higher-order-mode, solid silica-based fiber,” Opt. Lett., Vol. 32, No. 4, 340-342, 2007.
  10. *J. van Howe and C. Xu, “Ultrafast optical signal processing based upon space-time dualities,” J. of Lightwave Tech., Vol. 24, No. 7, pp. 2649-2662, 2006.
  11. J. van Howe, G. Zhu and C. Xu, “Compensation of self-phase modulation in fiber-based chirped-pulse amplification systems,” Opt. Lett., Vol. 31, No. 11, pp. 1756-1758, 2006.
  12. J. E. Sharping, Y. Okawachi, J. van Howe, C. Xu, Y. Wang, A. E. Willner and A. L. Gaeta, “All-optical, wavelength and bandwidth preserving, pulse delay based on parametric wavelength conversion and dispersion,” Opt. Exp., Vol. 13, No. 20, pp. 7872-7877, 2005.
  13. G. Zhu, J. van Howe, M. Durst, W. Zipfel, and C. Xu, “Simultaneous spatial and temporal focusing of femtosecond pulses,” Opt. Exp., Vol. 13, No. 6, pp. 2153-2159, 2005.
  14. J. van Howe and C. Xu, “Ultrafast optical delay line using soliton propagation between a time-prism pair,” Opt. Exp., Vol. 13, No. 4, pp. 1138-1143, 2005.
  15. J. Hansryd, J. van Howe and C. Xu, “Experimental demonstration of nonlinear phase jitter compensation in DPSK modulated fiber links,” IEEE Photon. Technol. Lett., Vol. 17, No. 1, pp. 232-234, 2005.
  16. J. van Howe and C. Xu, “Ultrafast optical delay line using a time-prism pair,” Opt. Lett., Vol. 30, No. 1, pp. 99-101, 2005.
  17. J. van Howe, J. Hansryd and C. Xu, “Multiwavelength pulse generator using time-lens compression,” Opt. Lett., Vol. 29, No. 13, pp. 1470-1472, 2004.
  18. Hansryd , J. van Howe, and C. Xu, “Nonlinear crosstalk and compensation in QDPASK communication systems,” IEEE Photon. Technol. Lett., Vol. 16, No. 8, pp. 1975-1977, 2004.

* Indicates invited paper

Conference proceedings

  1. J. Jeon, R. Maram, J. van Howe and J. Azaña, “Programmable sub-harmonic optical clock recovery based on dispersion-induced inverse temporal self-imaging” Conference on Lasers and Electro-Optics, 2017, San Jose,CA,  May 13-18, 2018.
  2. J. Jeon, R. Maram, J. van Howe and J. Azaña, “Programmable passive waveform amplifier based on temporal self-imaging effects” Conference on Lasers and Electro-Optics, 2017, San Jose,CA,  May 14-19, 2017.
  3. R. Maram, J. van Howe, and J. Azaña, “Demonstration of Input-to-Output Gain in a Talbot Amplifier” IEEE Photonics Conference, 2015, Reston, VA, Oct. 4-8, 2015.
  4. *J. Azaña, R. Maram,, J. van Howe, and M. Li and “Passive Amplification of and Real-time Averaging of Repetitive Waveforms using Talbot Effects” European Conference on Lasers and Electro-Optics, 2015, Munich, Germany,  June 21-215, 2015.
  5. R. Maram, J. van Howe, and J. Azaña, “Noise-Eating Amplifier for Repetitive Signals” IEEE Photonics Conference, 2014, San Diego, CA, Oct. 12-16, 2014.
  6. R. Maram, J. van Howe, M. Li and J. Azaña, “Passive Waveform Amplification by Self-Imaging” Conference on Lasers and Electro-Optics, 2014, San Jose,CA,  June 8-13, 2014.
  7. J. van Howe, “All-fiber 10-GHz Picosecond-Pulse Generation at 1.9 m without Mode-locking” Conference on Lasers and Electro-Optics, 2012, San Jose, May 6-11, 2012.
  8. J. H. Lee (presenter), J. van Howe, C. Xu, S. Ramachandran and  S. Ghalmi  “Energetic Soliton Self-frequency Shift over a 240 nm in a Solid Silica-based Fiber,” Postdeadline Session, Optical Fiber Communication Conference, 2007,  Anaheim, CA, March 25-30, 2007.
  9. J. H. Lee (presenter), J. van Howe, C. Xu, S. Ramachandran, S. Ghalmi and M. F. Yan  “Generation of femtosecond pulses at 1350 nm by Cerenkov radiation in higher-order-mode fiber,” Optical Fiber Communication Conference, 2007,  Anaheim, CA, March 25-30, 2007.
  10. J. van Howe (presenter) and C. Xu, “Looped Time-Lens Compression for Generation of 3.5 nJ Femtosecond Pulses from a CW Laser,” Conference on Lasers and Electro-Optics, 2007, Baltimore, May 6-11, 2007.
  11. *J. van Howe (presenter), J. Lee, S. Zhou, F. Wise, C. Xu, S. Ramachandran, S. Ghalmi and M. F. Yan, “Soliton self-frequency shift below 1300 nm in higher-order-mode, solid silica-based fiber,” LEOS Annual 2006, Montreal, October 29-November 2, 2006.
  12. J. van Howe (presenter) and C. Xu, “Applications of telecom technologies to optical instrumentation,” Proceedings from the SPIE, Optics East, 2006, Vol. 6388, Boston, October 1-4, 2006.
  13. J. van Howe (presenter), and C. Xu, “Compensation of self-phase Modulation in Fiber-Based Chirped-Pulse Amplification Systems,” Conference on Lasers and Electro-Optics, 2006, Long Beach, May 21-26, 2006.
  14. *J. van Howe and C. Xu (presenter), “Applications of temporal imaging in optical signal processing,” Digest of the LEOS Summer Topical Meetings, 2005, pp. 211-212, San Diego, July 25-27, 2005.
  15. G. Zhu, J. van Howe, M. Durst, W. Zipfel and C. Xu (presenter), “Simultaneous spatial and temporal focusing of femtosecond pulses,” Conference on Lasers and Electro-Optics, 2005, Vol. 2, pp. 1506-1508, Baltimore, May 22-27, 2005.
  16. J. E. Sharping (presenter), Y. Okawachi, J. van Howe, C. Xu, Y. Wang, A. E. Willner and A. L. Gaeta, “All-optical, continuously tunable, nanosecond pulse delay using wavelength conversion and fiber dispersion,” Conference on Lasers and Electro-Optics, 2005, Vol. 2, pp. 971-973, Baltimore, May 22-27, 2005.
  17. J. van Howe (presenter) and C. Xu, “Ultrafast optical delay line using soliton propagation between a time-prism pair,” Technical Digest of the Optical Fiber Communication Conference, 2005, Vol. 5, Anaheim, CA, March 6-11, 2005.
  18. J. van Howe (presenter) and C. Xu, “0.5 GHz scanning rate optical delay line,” OSA annual meeting Frontiers in Optics, 2004, Rochester, NY, October 10-14, 2004.
  19. J. van Howe (presenter) J. Hansryd, and C. Xu, “Novel multi-wavelength pulse generator for real-time WDM optical sampling,” Conference on Lasers and Electro-Optics, 2004, Vol. 2, San Francisco, May 16-21, 2004.
  20. J. Hansryd, J. van Howe (presenter) and C. Xu, “Compensation of nonlinear phase jitter in DPSK modulated optical communications systems,” Conference on Lasers and Electro-Optics, 2004, Vol. 2, San Francisco, May 16-21, 2004.

* Indicates invited paper or presentation

Invited colloquia

    “Optics in Space and Time” : Middlebury College, Spring 2019; “Ultrfast Optical Signal Processing using Space-Time Duality”: University of Iowa, Optical Science and Technology Center, Spring 2016; Saint Ambrose University, Davenport, Iowa, Spring 2016; Western Illinois University, Macomb, IL, Spring 2015.

Patents

  1. “Production of Optical Pulses at a Desired Wavelength by Soliton Self-frequency Shift,” C. Xu and J. van Howe, US 8,556,824 B2, Issued October 15, 2013.
  2. “Production of Optical Pulses at a Desired Wavelength using Soliton Self-Frequency Shift in Higher-Order-Mode Fiber,” C. Xu and J. van Howe, US 8,554,035 B2, Issued October 8, 2013.
  3. “Methods and Systems for Compensation of Self-Phase Modulation in Fiber-Based Amplification Systems,” C. Xu, J. van Howe and G. Zhu, US 8,102,594 B2, Issued January 24, 2012.