Zobrazeno 1 - 10
of 33
pro vyhledávání: '"Roman Kruglov"'
Autor:
Juri Vinogradov, Roman Kruglov, Rainer Engelbrecht, Olaf Ziemann, Jinn-Kong Sheu, Kai-Lun Chi, Jhih-Min Wun, Jin-Wei Shi
Publikováno v:
IEEE Photonics Journal, Vol 9, Iss 3, Pp 1-7 (2017)
We demonstrate the performance of a novel cyan light-emitting diode (LED) on a patterned sapphire substrate for use as a light source for plastic optical fiber (POF) communications with the central wavelength at 500 nm. By significantly reducing the
Externí odkaz:
https://doaj.org/article/2007663177184031a1e9177406181e0c
Autor:
Jhih-Min Wun, Che-Wei Lin, Wei Chen, J.-K. Sheu, Ching-Liang Lin, Yun-Li Li, John E. Bowers, Jin-Wei Shi, Juri Vinogradov, Roman Kruglov, Olaf Ziemann
Publikováno v:
IEEE Photonics Journal, Vol 4, Iss 5, Pp 1520-1529 (2012)
We demonstrate the performance of a novel cyan light-emitting diode (LED) on a patterned sapphire (PS) substrate as a light source for plastic optical fiber (POF) communications with the central wavelength at 500 nm. To further enhance the external q
Externí odkaz:
https://doaj.org/article/485ec08075604c6aa0eabe3e77880b5f
Publikováno v:
Journal of Sensors and Sensor Systems. 11:161-169
A wavelength tuning range up to 12 nm has been achieved over 12 µs pump current pulses within a usable time of 10 µs applied to VCSELs operating in the near infrared around 1550 nm. The instantaneous optical frequency shift has been measured with a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c437dc41ed85e7f351ed79c62b057f6f
https://doi.org/10.5194/jsss-11-161-2022
https://doi.org/10.5194/jsss-11-161-2022
Autor:
Hans Poisel, Rudol'ph V. Litvinov, Christian-Alexander Bunge, Roman Kruglov, Dmitry A. Konkin, Alexander A. Shibelgut
Publikováno v:
Journal of Lightwave Technology. 38:1454-1460
Rayleigh scattering in graded-index polymer optical fibers (GI-POF) is studied under the assumption that spherical scatterers are uniformly distributed within the layers of concentric ring structure. This approximation allows to describe typical impe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3a53735161950e81a26aad0bb0909b6f
https://doi.org/10.1109/jlt.2020.2970752
https://doi.org/10.1109/jlt.2020.2970752
Autor:
Galina Surkova, A. S. Zadorin, Hans Poisel, Roman Kruglov, Alexander Argyros, Richard Lwin, Sergio G. Leon-Saval
Publikováno v:
Optical Fiber Technology. 34:65-69
In contrast to conventional polymer optical fibers (POF) microstructured POF (mPOF) provide an additional opportunity to control the optical properties of the propagating signals. A particular arrangement of the air holes allows to reduce the number
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cc945faf3ace9b5c8d9b6c7bbd0ac9cd
https://doi.org/10.1016/j.yofte.2017.01.004
https://doi.org/10.1016/j.yofte.2017.01.004
Publikováno v:
IEEE Photonics Technology Letters. 27:2007-2010
Nonlinear signal distortions originated in a resonant-cavity light emitting diode (RC-LED) are investigated. Using laboratory measurements and offline processing, the RC-LED’s nonlinear behavior is investigated for multilevel pulse amplitude modula
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bdfc05cf8cc2bc7fa2ace888f2c72d55
https://doi.org/10.1109/lpt.2015.2449238
https://doi.org/10.1109/lpt.2015.2449238
Autor:
Mladen Joncic, M. Haupt, Reinhard Caspary, Juri Vinogradov, Roman Kruglov, Ulrich H. P. Fischer
Publikováno v:
IEEE Photonics Technology Letters. 26:1328-1331
Wavelength division multiplexing (WDM) is a promising solution for upgrading the capacity of polymer optical fiber (POF)-based telecommunication networks. In this letter, we report on the successful realization of a four-channel high-speed WDM transm
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2ab49ebfec457bea0651558566ce27e7
https://doi.org/10.1109/lpt.2014.2322695
https://doi.org/10.1109/lpt.2014.2322695
Autor:
Sven Loquai, Martin Bloos, Olaf Ziemann, Roman Kruglov, Kai-Lun Chi, Juri Vinogradov, Jin-Wei Shi
Publikováno v:
IEEE Photonics Technology Letters. 26:2473-2475
We report a high-speed data transmission over a 1-mm diameter step-index polymer optical fiber (SI-POF) with GaN light-emitting diodes (LEDs) operating at 435 and 475 nm. The modulation bandwidths of the LEDs at 40 mA were 180 and 300 MHz, respective
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1f9e0d47b8687cc15606c09da70bb650
https://doi.org/10.1109/lpt.2014.2359073
https://doi.org/10.1109/lpt.2014.2359073
Publikováno v:
Journal of Lightwave Technology. 28:2646-2653
A fully analytic analysis of the frequency response of a homo-structure p-i-n photodiode is developed to characterize high-speed large-area p-i-n photodiodes. Therefore, the model can easily be implemented in mathematical simulation tools for system
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f1316c7e9a72c5f1184dfa400f8300cb
https://doi.org/10.1109/jlt.2010.2059372
https://doi.org/10.1109/jlt.2010.2059372
Autor:
Roman Kruglov, Wolfgang Kowalsky, Hans-Hermann Johannes, Reinhard Caspary, Juri Vinogradov, Ulrich Prof. Dr. Fischer-Hirchert, Mladen Joncic, M. Haupt
Publikováno v:
2015 17th International Conference on Transparent Optical Networks (ICTON).
We have developed WDM multiplexer and demultiplexer in the visible spectral range for POF transmission links and have carried out transmission experiments using different lengths of standard SI-POF. Our 4-channel WDM system with laser diode sources i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3592d4a1f598cd5f1dc1c099739c1a5f
https://doi.org/10.1109/icton.2015.7193418
https://doi.org/10.1109/icton.2015.7193418