Giving to CREOL CREOL, The College of Optics & Photonics
Dr.  Peter J. Delfyett

Dr. Peter J. Delfyett

University Trustee Chair, Pegasus Professor of Optics & Photonics, ECE & Physics; Director, Townes Laser Institute

Ultrafast Photonics

Email (Work)


407-823-6812 (Office)


CREOL 272 (Office)


Peter J. Delfyett received the B.E.(E.E.) degree from The City College of New York in 1981, the M.S. degree in EE from The University of Rochester  in 1983,  the M. Phil and Ph.D. degrees from The Graduate School & University Center of the City University of New York in 1987 and 1988, respectively.  His Ph.D. thesis was focused on developing a real time ultrafast spectroscopic probe to study molecular and phonon dynamics in condensed matter using optical phase conjugation techniques.

After obtaining the Ph.D. degree, he joined Bell Communication Research as a Member of the Technical Staff, where he concentrated his efforts towards generating ultrafast high power optical pulses from semiconductor diode lasers, for applications in applied photonic networks.  Some of his technical accomplishments were the development of the world’s fastest, most powerful modelocked semiconductor laser diode, the demonstration of an optically distributed clocking network for high speed digital switches and supercomputer applications, and the first observation of the optical nonlinearity induced by the cooling of highly excited electron-hole pairs in semiconductor optical amplifiers.  While at Bellcore, Dr. Delfyett received numerous awards for his technical achievements in these areas, including the Bellcore Synergy Award and the Bellcore Award of Appreciation.

Dr. Delfyett joined the faculty at the College of Optics & Photonics and the Center for Research and Education in Optics and Lasers (CREOL) at the University of Central Florida in 1993, and currently holds the positions of University of Central Florida Trustee Chair Professor of Optics, ECE & Physics.

Dr. Delfyett served as the Editor-in-Chief of the IEEE Journal of Selected Topics in Quantum Electronics (2001-2006), and served on the Board of Directors of the Optical Society of America.  He served as an Associate Editor of IEEE Photonics Technology Letters, was Executive Editor of IEEE LEOS Newsletter (1995-2000) and sits on the Presidential Science Advisory Council of the Orlando Science Center.  He is a Fellow of the Optical Society of America, Fellow of IEEE/LEOS, was a member of the Board of Governors of IEEE-LEOS (2000-2002), and is also a member of Tau Beta Pi, Eta Kappa Nu, and Sigma Xi, and SPIE. Dr. Delfyett has been awarded the 1992 YMCA New Jersey Black Achievement Award, the 1993 National Black Engineer of the Year Award – Most Promising Engineer, the University Distinguished Research Award ’99, and highlighted in Design News’ “Engineering Achievement Awards”.  In addition, Dr. Delfyett has been awarded the National Science Foundation’s Presidential Faculty Fellow Early Career Award for Scientists and Engineers, which is awarded to the Nation’s top 20 young scientists.  Dr. Delfyett has published over 500 articles in refereed journals and conference proceedings, has been awarded 30 United States Patents, and has been highlighted on ‘C-SPAN’, “” and in “Career Encounters”, a PBS Special on technical careers in the optics and photonics field.  Dr. Delfyett was awarded the 1999 University Distinguished Researcher of the Year Award, the 2000 Black Engineer of the Year Award – Outstanding Alumnus Achievement, and the 2000 Excellence in Graduate Teaching Award.  He was awarded the University of Central Florida’s 2001 Pegasus Professor Award which is the highest honor awarded by the University. He is also a Founding Member in NSF’s Scientists and Engineers in the School Program, which is a program to teach 8th graders about the benefits of science, engineering and technology in society.  In 2003, Dr. Delfyett received the Technology Innovation Award from the Orlando Economic Development Commission.  He was selected as one of the “50 Most Important Blacks in Research Science in 2004” and as a “Science Trailblazer in 2005 and 2006” by Career Communications Group and Science Spectrum Magazine.  Dr. Delfyett has also endeavored to transfer technology to the private sector, and helped to found “Raydiance, Inc.” which is a spin-off company developing high power, ultrafast laser systems, based on Dr. Delfyett’s research, for applications in medicine, defense, material processing, biotech and other key technological markets.  Dr. Delfyett was also elected to serve 2 terms as President of the National Society of Black Physicists (2008-2012).  Most recently, he was awarded the APS Edward Bouchet Award for his significant scientific contributions in the area of ultrafast optical device physics and semiconductor diode based ultrafast lasers, and for his exemplary and continuing efforts in the career development of underrepresented minorities in science and engineering.

Awards & Honors

International Society for Optics and Photonics (SPIE) Fellow
American Physical Society (APS) Fellow
IEEE Photonics Society Fellow
Optical Society of America (OSA) Fellow
2014 Florida Academy of Science’s 2014 Medalist
2013 National Academy of Inventors Fellow
2013 Letter of Appreciation - SPIE
2013 Faculty Excellence for Mentoring Doctoral Students
2013 College Research Incentive Award (RIA)
2012 Faculty Excellence in Mentoring Doctoral Students
2012 College Excellence in Graduate Teaching Award
2012 Excellence in Graduate Teaching Award
2011 Excellence in Graduate Teaching Award
2011 APS Edward Bouchet Award
2010 American Physical Society Edward Bouchet Award
2010 IEEE Photonic Society Graduate Student Fellowship
2010 SPIE Educational Scholarship in Optical Science and Engineering
2010 Incubic/Milton Chang Travel Award to attend CLEO
2006 Science Spectrum Trailblazer
2005 District Advocate for the American Physical Society
2005 Science Spectrum Outstanding Black Professional in Science
2003 Technology Innovation Award
2003 UCF Millionaire's Club
2002 Pegasus Professor Award
2002 UCF Distinguished Research Professor Award
2002 UCF Millionaire's Club
2001 UCF Nguzo Saba Award
2000 Research Incentive Award (RIA)

Recent Publications

R. Bustos Ramirez, M. E. Plascak, K. Bagnell, A. Bhardwaj, J. Ferrara, G. E. Hoefler, F. A. Kish, M. C. Wu and P. Delfyett
"Repetition Rate Stabilization and Optical Axial Mode Linewidth Reduction of a Chip-Scale MLL Using Regenerative Multitone Injection Locking"
Journal of Lightwave Technology, 36(14), pp. 2948-2954
K. Bagnell, A. Klee, P. Delfyett, J. Plant, and P. Juodawlkis
"Demonstration of a highly stable 10 GHz optical frequency comb with low timing jitter from a SCOWA-based harmonically mode-locked nested cavity laser"
Optics Letters, 43(10), pp. 2396-2399
Ricardo Bustos Ramirez, Michael E. Plascak, Ashish Bhardwaj, Gloria E. Hoefler, Fred Kish, and Peter J. Delfyett
"Harmonic Injection Locking for a Direct Optical to RF Link"
Conference on Lasers and Electro-Optics (IEEE/OSA CLEO 2018), San Jose, CA, May 2018.
S. Khan, M. Malinowski, J.-E. Tremblay, A. Rao, G. Camacho-Gonzalez, R. Bustos Ramirez, M. Plascak, K. Richardson, P. Delfyett, M. Wu, and S. Fathpour
"Integrated Thin-film Lithium-Niobate Waveguides on Silicon for Second-Harmonic Generation Pumped at 1875 nm"
Conference on Lasers and Electro-Optics (IEEE/OSA CLEO 2018), San Jose, CA, May 2018.
M. Plascak, R. Bustos Ramirez, M. Malinowski, J.-E. Tremblay, A. Bhardwaj, G. Hoefler, S. Fathpour, M. Wu, and P. Delfyett
"Towards Full Stabilization of an Injection Locked 10GHz Chip-Scale Mode-Locked Laser on InP"
Conference on Lasers and Electro-Optics (IEEE/OSA CLEO 2018), San Jose, CA, May 2018.
Michael E. Plascak, Ricardo Bustos Ramirez, Peter J. Delfyett, Jr.
"“Stable electro-optic frequency comb generation using an ultrahigh finesse etalon filtered optoelectronic oscillator”,"
19 April 2018 • 3:55 - 4:20 PM | Part of SPIE Defense + Security (Invited)
Abdullah M. Zaman, Peter J. Delfyett, Mina Bayat
"“Towards independent controls of optical comb frequencies and comb spacing of 3-section AlGaInAs multiple quantum-well laser diodes”, Abdullah M. Zaman, Peter J. Delfyett, Mina Bayat19 April 2018 • 3:00 - 3:25 PM | Part of SPIE Defense + Security, (Invited)"
19 April 2018 • 3:00 - 3:25 PM | Part of SPIE Defense + Security, (Invited)
Peter Delfyett
"“Ultrafast Coherent Optical Signal Processing using Stabilized Optical Frequency Combs from Mode-locked Semiconductor Diode Lasers”,"
CREOL Industrial Affiliates Day, UCF, April 2018
Peter Delfyett
"Lasers - the light fantastic - Science and applications from pointers to DVDs"
UCF Optics Day, Orlando FL, April 13
Ricardo Bustos Ramirez, Michael E. Plascak, Kristina Bagnell, Ashish Bhardwaj, James Ferrara, Gloria E. Hoefler, Fred A. Kish, Ming C. Wu, Peter J. Delfyett,
"Reduction of axial mode linewidth and stabilization of the repetition rate of a chip-scale high-speed MLL via COEO multi-tone injection locking"
19 April 2018 4:20 - 4:45 PM | Part of SPIE Defense + Security, (Invited)


Science & Technology Skip Navigation Links.
Solid State Lasers
Semiconductor Lasers
Ultrafast Lasers
Optical Frequency Combs
Fiber Optics
Fiber Lasers
Optoelectronics & Integrated Photonics
LEDs & Laser Diodes
Quantum Dots & Nanostructures
Nonlinear & Quantum Optics
Nonlinear Optics & Spectroscopy
Applications Skip Navigation Links.
Optical Communication
Optical Processing & Switching
Fiber Optic Communication
Integrated-Optic Signal Processing
Fiber Optic Networks
Optical Signal Processing
Contact Webmaster © University of Central Florida
4304 Scorpius St., Orlando FL 32816-2700 | 407-823-6800