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Your search keyword '"Tsadka, S."' showing total 25 results
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25 results on '"Tsadka, S."'

1. All-optical grooming for 100 Gbit/s ethernet

Author

Leuthold, J., Bonk, R., Vorreau, P., Sygletos, S., Hillerkuss, D., Freude, W., Zarris, G., Simeonidou, D., Kouloumentas, C., Spyropoulou, M., Tomkos, I., Parmigiani, F., Petropoulos, P., Richardson, D. J., Weerasuriya, R., Ibrahim, S., Ellis, A. D., Morais, R., Monteiro, P., Ben Ezra, S., and Tsadka, S.

Abstract

A regenerative optical grooming switch for interconnecting 100 Gbit/s networks with lower bit-rate networks and switching functionality in time, space and wavelength domain is demonstrated. Lab and field demonstrations show the feasibility of the new concept. Q-factors above 20 dB are reported.

Published
2010

2. Optical grooming switch with regenerative functionality for transparent interconnection of networks

Author

Vorreau, P., Sygletos, S., Parmigiani, F., Hillerkuss, D., Bonk, R., Petropoulos, P., Richardson, D.J., Zarris, G., Simeonidou, D., Klonidis, D., Tomkos, I., Weerasuriya, R., Ibrahim, S.K., Ellis, A.D., Cotter, D., Morais, R., Monteiro, P., Ben Ezra, S., Tsadka, S., Freude, W., Leuthold, Juerg, Vorreau, P., Sygletos, S., Parmigiani, F., Hillerkuss, D., Bonk, R., Petropoulos, P., Richardson, D.J., Zarris, G., Simeonidou, D., Klonidis, D., Tomkos, I., Weerasuriya, R., Ibrahim, S.K., Ellis, A.D., Cotter, D., Morais, R., Monteiro, P., Ben Ezra, S., Tsadka, S., Freude, W., and Leuthold, Juerg

Abstract

We demonstrate a regenerative optical grooming switch for buffer-less interconnection of metro/access and metro/core ring networks with switching functionality in time, space and wavelength domain. Key functionalities of the router are the traffic aggregation with time-slot interchanging (TSI) functionality, the WDM-to-ODTM multiplexing and the OTDM-to-WDM demultiplexing of high-speed channel into lower bit-rate tributaries as well as multi-wavelength all-optical 2R regeneration of several higher-speed signals. BER and Q-factor measurements of different switching scenarios show excellent performance with no error floor and Q-factors above 21 dB.

Published
2009

4. All-optical grooming for 100 Gbit/s ethernet

Author

Leuthold, J., primary, Bonk, R., additional, Vorreau, P., additional, Sygletos, S., additional, Hillerkuss, D., additional, Freude, W., additional, Zarris, G., additional, Simeonidou, D., additional, Kouloumentas, C., additional, Spyropoulou, M., additional, Tomkos, I., additional, Parmigiani, F., additional, Petropoulos, P., additional, Richardson, D. J., additional, Weerasuriya, R., additional, Ibrahim, S., additional, Ellis, A. D., additional, Morais, R., additional, Monteiro, P., additional, Ben Ezra, S., additional, and Tsadka, S., additional

Published
2010
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5. Optical grooming switch with regenerative functionality for transparent interconnection of networks

Author

Vorreau, P., primary, Sygletos, S., additional, Parmigiani, F., additional, Hillerkuss, D., additional, Bonk, R., additional, Petropoulos, P., additional, Richardson, D. J., additional, Zarris, G., additional, Simeonidou, D., additional, Klonidis, D., additional, Tomkos, I., additional, Weerasuriya, R., additional, Ibrahim, S., additional, Ellis, A. D., additional, Cotter, D., additional, Morais, R., additional, Monteiro, P., additional, Ben Ezra, S., additional, Tsadka, S., additional, Freude, W., additional, and Leuthold, J., additional

Published
2009
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6. An all-optical grooming switch with regenerative capabilities

Author

Leuthold, J., primary, Bonk, R., additional, Vorreau, P., additional, Sygletos, S., additional, Hillerkuss, D., additional, Freude, W., additional, Zarris, G., additional, Simeonidou, D., additional, Kouloumentas, C., additional, Spyropoulou, M., additional, Tomkos, I., additional, Parmigiani, F., additional, Petropoulos, P., additional, Richardson, D.J., additional, Weerasuriya, R., additional, Ibrahim, S., additional, Ellis, A.D., additional, Meuer, C., additional, Bimberg, D., additional, Morais, R., additional, Monteiro, P., additional, Ben Ezra, S., additional, and Tsadka, S., additional

Published
2009
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7. 2R/3R optical grooming switch with time-slot interchange

Author

Vorreau, P., primary, Hillerkuss, D., additional, Parmigiani, F., additional, Sygletos, S., additional, Bonk, R., additional, Petropoulos, P., additional, Richardson, D., additional, Zarris, G., additional, Simeonidou, D., additional, Klonidis, D., additional, Tomkos, I., additional, Weerasuriya, R., additional, Ibrahim, S., additional, Ellis, A., additional, Morais, R., additional, Monteiro, P., additional, Ben Ezra, S., additional, Tsadka, S., additional, Freude, W., additional, and Leuthold, J., additional

Published
2008
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18. Pattern Effect Removal Technique for Semiconductor-Optical-Amplifier-Based Wavelength Conversion.

Author

Jin Wang, Marculescu, A., Jingshi Li, Vorreau, P., Tzadok, S., Ben Ezra, S., Tsadka, S., Freude, W., and Leuthold, J.

Abstract

A technique to overcome pattern dependence in semiconductor-optical-amplifier-based wavelength converters is presented. The technique is based on a careful selection of red- and blue-shifted spectral components having complementary pattern effects in the output spectrum of a wavelength-converted signal. Significant signal quality improvements are reported at a bit rate of 40 Gb/s. [ABSTRACT FROM PUBLISHER]

Published
2007
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24. 10 Gbit/s optical wavelength converter with a Brillouin scattering-based spectral filter.

Author

Granot E, Sternklar S, Chayet H, Ben-Ezra S, Narkiss N, Shahar N, Sher A, and Tsadka S

Abstract

For the first time, to our knowledge, a highly robust, high-bit-rate (10 Gbit/s) wavelength converter that is based on a narrow Brillouin filter is reported. The conversion takes place in a semiconductor optical amplifier (SOA) in a cross-gain-phase process. The SOA operates in a weak-modulation mode, and the exiting signal undergoes a dc reduction with a narrow spectral filter. In our system we perform spectrally narrow filtering by using a long Brillouin grating.

Published
2005
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25. Wave propagation in turbulent media: use of convergence acceleration methods.

Author

Baram A, Tsadka S, Azar Z, and Tur M

Abstract

We propose the use of convergence acceleration methods for the evaluation of integral expressions of an oscillatory nature, often encountered in the study of optical wave propagation in the turbulent atmosphere. These techniques offer substantial savings in computation time with appreciable gain in accuracy. As an example, we apply the Levin u acceleration scheme to the problem of remote sensing of transversal wind profiles.

Published
1988
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