Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Markku Tahkokorpi"'
Publikováno v:
Tervonen, A, Pöyhönen, P, Honkanen, S, Tahkokorpi, M & Tammela, S 1991, ' Examination of two-step fabrication methods for single-mode fiber compatible ion-exchanged glass waveguides ', Applied Optics, vol. 30, no. 3, pp. 338-343 . https://doi.org/10.1364/AO.30.000338
A computer model was used to study important two-step ion-exchange processes for fabrication of single-mode optical waveguides with fiberlike mode field distributions. As a first process step, a field-assisted method was calculated to have a better c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6f7b2aedabfd03098cc81556993f4147
https://pubmed.ncbi.nlm.nih.gov/20581988
https://pubmed.ncbi.nlm.nih.gov/20581988
Publikováno v:
Journal of Modern Optics. 39:1615-1618
An optical waveguide Mach-Zehnder interferometer was designed for multiplexing 1·48 and 1·55 wm wavelengths. This device can be used for injecting pump light into Er-doped fibre amplifier. Interferometers were fabricated with the silver thin-film i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5d6ca2f9532a7ae2b211120ac4ca14ce
https://doi.org/10.1080/713823580
https://doi.org/10.1080/713823580
Autor:
M. Oksanen, A. Grohn, Harald Kaaja, M. Oikkonen, V. Moitchanov, H. Jarvinen, T. Wallenius, Ari Tervonen, Markku Tahkokorpi, A. Pietilainen, Olli-Pekka Hiironen, Marko Karhiniemi, E. Gotsonoga, J. Aarnio
Publikováno v:
Optical Fiber Communication Conference and Exhibit.
An Ethernet passive optical network (PON) based on spectral slicing that has 24 channels has been demonstrated, and this can be readily extended to 32 to 40 channels using available arrayed waveguide grating (AWG) and EDFA technologies. Further devel
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::97082e714629a8cf73168d43438bc241
https://doi.org/10.1109/ofc.2002.1036470
https://doi.org/10.1109/ofc.2002.1036470
Publikováno v:
IEEE Photonics Technology Letters. 3:516-518
A guided-wave Mach-Zehnder interferometer structure, based on the use of a four-port hybrid optical coupler consisting of symmetric and nonsymmetric y junctions, is proposed for wavelength-division multiplexing application. This structure provides le
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a61d232bed1e28d91ebe2effd98cc3e8
https://doi.org/10.1109/68.91019
https://doi.org/10.1109/68.91019
Autor:
Markku Tahkokorpi, Ilari Welling
Publikováno v:
Broadband Access Networks ISBN: 9781461376552
This chapter examines the profitability of different multimedia services and network technologies used to provide the services from the point of view of network operators. In particular,the profitability of video on demand, Internet access and the co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0a47b18127b7d4e8bf958d8d59af8adc
https://doi.org/10.1007/978-1-4615-5795-1_15
https://doi.org/10.1007/978-1-4615-5795-1_15
Autor:
Nikolaus Gieschen, Markku Lähteenoja, Sotirios Markatos, Frank Fleuren, Markku Tahkokorpi, Jari Mononen, Ilari Welling, Marc Drieskens
Publikováno v:
Broadband Access Networks ISBN: 9781461376552
Deriving suitable access network upgrade strategies requires strategic analyses and techno-economic evaluations of network projects. A sufficient access network strategic analysis to some extent relies on the combination of high level parameters and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::60be0abb12a6eec8dfdc413762981a44
https://doi.org/10.1007/978-1-4615-5795-1_5
https://doi.org/10.1007/978-1-4615-5795-1_5
Autor:
Markku Tahkokorpi
Publikováno v:
Broadband Access Networks ISBN: 9781461376552
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::935ccbc60c37badc8339a6a5e5cc3bf7
https://doi.org/10.1007/978-1-4615-5795-1_10
https://doi.org/10.1007/978-1-4615-5795-1_10
Autor:
Sotirios Markatos, Borgar Tørre Olsen, Markku Tahkokorpi, Kjell Stordahl, L.A. Ims, Alcibiade Zaganiaris, Marc Drieskens, Nikolaus Gieschen
Publikováno v:
Broadband Access Networks ISBN: 9781461376552
Access network architectures for the short and medium term narrowband needs have been analysed with TITAN (tool for introduction strategies and technoeconomic evaluation of access network). All technical solutions are assumed deployed in a greenfield
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::134d3e60f5392a48c09bc5055d701ff5
https://doi.org/10.1007/978-1-4615-5795-1_11
https://doi.org/10.1007/978-1-4615-5795-1_11
Publikováno v:
Broadband Access Networks ISBN: 9781461376552
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0076f91c91422d16c599c7a55e0100d5
https://doi.org/10.1007/978-1-4615-5795-1_6
https://doi.org/10.1007/978-1-4615-5795-1_6
Publikováno v:
Integrated Optical Circuits II.
Software tools for design of passive integrated optical components based on ion-exchanged glass waveguides have been developed. All design programs have been implemented on personal computers. A general simulation program for ion exchange processes i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f317f1c07ee41fa3341fd20c8835273e
https://doi.org/10.1117/12.141892
https://doi.org/10.1117/12.141892