"All-optical Signal Processing of High-speed Serial Data Signals Exceeding 1 Tbit/s Using Optical Time Lenses and Nonlinear Waveguides such as Silicon Nanowires and Highly Nonlinear Fibers"

Leif Katsuo Oxenløwe, Professor, DTU Fotonik

March 12th (Monday), 2:00pm
Engineering Science Building (ESB), Room 2001

All-optical signal processing may be suitable for functionalities where many bits are processed in a few devices [1]. This is the case where ultra-high-speed serial data signals are optically processed in one nonlinear optical waveguide. This talk will describe some recent experimental demonstrations where this has been the goal, including 640 Gbit/s wavelength conversion, 640 Gbit/s serial-to-parallel conversion, 640 Gbit/s RZ-to-NRZ format conversion and 640 Gbit/s packet switching. During the talk, it will also be shown that nonlinear silicon waveguides can indeed be used to process serial 1.28 Tbit/s serial data signals [2-3] and describe various potentially energy-efficient schemes of conversion, focusing on wavelength conversion [4] and serial-to-parallel conversion [5]. It will also be shown that serial 1.28 Tbit/s data signals may be used to carry advanced data modulation formats [6-7] and be successfully transmitted over standard fiber as well as being compatible with standard Ethernet traffic using optical time lenses [8].

[1] R. Tucker et al, IEEE Photonics Journal, Vol. 3, No. 5, October 2011 Page 821, DOI: 10.1109/JPHOT.2011.2166254 (2011)
[2] H. Ji et al, OFC 2010, postdeadline paper PDPC7
[3] L.K. Oxenløwe et al, J. Select. Topics Quantum Electron., Special Issue 99 (2011), DOI: 10.1109/JSTQE.2011.2140093
[4] H. Hu et al, OFC’2011, postdeadline paper PDPA8
[5] H.C.H. Mulvad et al, ECOC’2011, postdeadline paper Th.13.A.2
[6] H.C.H. Mulvad et al, LEOS’2009, postdeadline paper PD 1.2
[7] T. Richter et al, OFC’2011, postdeadline paper DPA9
[8] L.K. Oxenløwe et al, International Journal of Optics, Special Issue, (2012), Article ID 573843, doi:10.1155/2012/573843.

About Leif Katsuo Oxenløwe:

Leif Katsuo Oxenløwe received the B.Sc. degree in physics and astronomy from the Niels Bohr Institute, University of Copenhagen, Denmark in 1996. In 1998 he received the International Diploma of Imperial College of Science, Technology and Medicine, London, UK and the M.Sc. degree from the University of Copenhagen. He received the Ph.D. degree in 2002 from the Technical University of Denmark, where he has been working since at DTU Fotonik, Department of Photonics Engineering.

Since 2007 he is the group leader of the High-Speed Optical Communications group and since December 2009 he is a Professor of Photonic Communication Technologies. He is working with experimental research in the field of ultra-high-speed serial optical communications (above 1 Tbit/s) and optical signal processing with a focus on ultrafast potentially energy-efficient photonics chips. He is the recipient of a European Research Council project (SOCRATES) dealing with the connection between ultra-high-speed serial data and Ethernet networks, a project that started in October 2009. He is also heading the Danish national research council projects NESTOR, NOSFERATU and NANO-COM and is involved in several other national and international projects. He has authored or co-authored more than 170 peer reviewed publications, including 9 postdeadline papers at major conferences (ECOC’11, OFC’11, OFC’10, OFC’10, LEOS’09, OECC’08, OFC’08, ECOC’04, OECC’02).

Hosted by: Professor John Bowers