Hannu Hoffren
Helsinki University of Technology
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Publication
Featured researches published by Hannu Hoffren.
conference on lasers and electro optics | 2007
Markus Hautakorpi; Hannu Hoffren; J. Tiilikainen; Hanne Ludvigsen
We investigate the photonic bandgaps in photonic crystal fibers coated with cylindrical high-index inclusions. Besides numerical modeling, we are studying the feasibility of the atomic layer deposition technique for producing the inclusions.
international conference on transparent optical networks | 2006
Hannu Hoffren; Jesse Tuominen; Hanne Ludvigsen
This paper presents a switch based on a liquid crystal filled photonic bandgap fiber (PBF) where the signal light is transmitted in the transverse direction. A broad and smooth operational wavelength range can be obtained with this type of optical switch
Journal of the European Optical Society: Rapid Publications | 2007
Jesse Tuominen; Hannu Hoffren; Hanne Ludvigsen
Archive | 2008
Markus Hautakorpi; Hannu Hoffren; Maija-Liisa Mattinen; Hanne Ludvigsen
european conference on optical communication | 2007
Hannu Hoffren; Jesse Tuominen; Hanne Ludvigsen
Archive | 2007
Markus Hautakorpi; Hannu Hoffren; Hanne Ludvigsen
Archive | 2007
Jesse Tuominen; Hannu Hoffren; Hanne Ludvigsen
Archive | 2007
Markus Hautakorpi; Hannu Hoffren; Jouni Tiilikainen; Hanne Ludvigsen
Archive | 2007
Markus Hautakorpi; Hannu Hoffren; Hanne Ludvigsen
Archive | 2006
Hannu Hoffren; Jesse Tuominen; Hanne Ludvigsen
