Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Dieter Briggmann"'
Publikováno v:
IEEE Photonics Technology Letters. 28:343-346
An ultra-wideband (UWB) doublet pulse generation technique in the optical domain for UWB-over-fiber systems is presented. Our solution is based on the direct modulation of a semiconductor laser, optical filtering, and chromatic dispersion in a transm
Autor:
Ali Emsia, Mohammadreza Malekizandi, Ivan B. Djordjevic, Franko Küppers, Dieter Briggmann, Quang Trung Le
Publikováno v:
IEEE Photonics Journal. 6:1-10
Today, even in access networks, data traffic is enormously increasing, a trend that causes existing passive optical network (PON) infrastructures to become bottlenecks in a tele- and data-communication infrastructure, which is aimed to be both broadb
Publikováno v:
2015 IEEE Optical Interconnects Conference (OI).
Optical UWB pulse generation and wireless propagation through antenna is investigated. Experimental BER results are presented. It is shown due to antenna characteristics monocycle pulse is converted into 3rd-order Gaussian derivative after wireless p
Publikováno v:
Electronics Letters. 49:1171-1173
A new method to generate ultra-wideband (UWB) pulses based on direct modulation of laser and optical filtering is demonstrated. The intensity modulation and the frequency modulation of the directly modulated laser are combined by the optical filter,
Publikováno v:
2014 IEEE Fifth International Conference on Communications and Electronics (ICCE).
Publikováno v:
Scopus-Elsevier
This paper proposes a budget extender which is at the same time burst power equalizer based on SOAs for upstream 10 Gbit/s PON that achieves 38 dB access budget and 16 dB dynamic range compression.
Autor:
Dieter Briggmann, Ali Emsia, Quang Trung Le, Franko Küppers, Mohammadreza Malekizandi, Ivan B. Djordjevic
Publikováno v:
SPIE Proceedings.
This paper experimentally investigates power budget extension configurations for WDM NG-PONs. Differential Phase Shift Keying (DPSK), and Differential Quadrature Phase Shift Keying (DQPSK) are considered. The budget enhancement techniques are based o
Autor:
Ali Emsia, Franko Küppers, Ivan B. Djordjevic, Mohammadreza Malekizandi, Dieter Briggmann, Quang Trung Le
Publikováno v:
SPIE Proceedings.
As demand for higher bandwidth is drastically increasing, bandwidth efficiency is going to be an issue in Passive Optical Networks (PONs). Moreover, network operators plan to reduce the number of central offices (COs) while extending the reach of the
Publikováno v:
2013 IEEE International Topical Meeting on Microwave Photonics (MWP).
A novel optical ultrawideband (UWB) pulse generator, which is capable of generating both Gaussian monocycle and Gaussian doublet pulses, by using a directly modulated semiconductor laser, optical filtering and chromatic dispersion in fiber is propose
Publikováno v:
SPIE Proceedings.
Chirp-managed lasers (CML) are demonstrated as simple low-cost transmitter with high tolerance to chromatic dispersion. This manuscript proposes the use of CML as cost-effective downstream (DS) transmitters for next generation access networks. The la