Dr. Jens Buus
LEOS Distinguished Lecturer
| Organizer: IEEE Toronto Section, Circuits and Devices Chapter |
| Title: Semiconductor lasers for WDM systems |
| Speaker: Dr. Jens Buus LEOS Distinguished Lecturer |
| Abstract: This lecture is designed to bring attendees up to date on the state of the art of optical sources for WDM systems, with emphasis on tunable lasers. The lecture will start with the description of gratings, used as wavelength selective element in DFB and DBR lasers. The characteristics of these lasers will be discussed. Tuning mechanisms and tuning properties will be described, and the operation of modified structures with extended tuning range will be explained, including sampled gratings and super structure gratings. The properties of co-directional couplers and the use of these in tunable lasers will be discussed. Devices such as tunable external cavity lasers, tunable VCSELs, multi wavelength lasers, and non-semiconductor lasers will be described. Throughout the lecture numerous examples of laser structures from the recent technical literature will be presented. Practical aspects such as characterisation, operation and control of tunable lasers will be included. |
| Biography: Jens Buus was born in 1952 in Copenhagen, Denmark. He is an electrical engineer (MSc in electrophysics), graduated from the Technical University of Denmark (DTU), August 1976. In addition he holds Lic. techn. (PhD) and Dr. techn. (DSc) degrees from this University. From 1979 to 1983 he was a post doctoral fellow at Electromagnetics Institute, DTU, and from 1983 to 1992 he was employed by GEC-Marconi Materials Technology (formerly Plessey Research Caswell), holding a position as Senior Chief Physicist from January 1988 to December 1992. Since January 1993 he has been a self employed consultant (Gayton Photonics Ltd), in 1996 he was appointed visiting professor at Aston University. He has worked as project manager in the European RACE programme and is currently project manager for two project under ACTS and one under the new IST programme. Dr Buus has served on a number of conference committees and given invited talks, tutorials and short courses at several conferences, he has authored or co-authored about 60 papers, about 60 conference papers and 2 books. He is a Fellow of the IEEE, and a member of the Optical Society of America, the Institute of Electrical Engineers and of the Danish Physical Society. His research has included numerous contributions to the understanding of the properties of semiconductor lasers and optical waveguides. |
| Time and Location: Wednesday, March 15, 2000, at 4:00 p.m. University of Toronto McLennan Physical Laboratories, ROOM 103 60 St. George Street, Toronto |
The Institute of Electrical and Electronics Engineers,
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