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- Akram, Nadeem, 1971-, et al.
(författare)
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High-Speed Performance of 1.55 µm Buried Hetero-Structure Lasers with 20 InGaAsP/InGaAlAs Quantum-Wells
- 2006
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Ingår i: 2006 European Conference on Optical Communications Proceedings, ECOC 2006. - : IEEE. - 9782912328397 ; , s. 1-2
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Konferensbidrag (refereegranskat)abstract
- 1550 nm re-grown FP lasers having 20 InGaAsP/InGaAlAs strain-balanced QWs exhibit low threshold current density, high T0 (78.0 #x000B0;C) and high resonance frequency (24 GHz) indicating that a large number of shallow barrier QWs are attractive for un-cooled high-speed direct-modulation applications.
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- Forzati, Marco, et al.
(författare)
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Ifwm suppression by asynchronous phase modulation
- 2006
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Ingår i: 2006 European Conference on Optical Communications Proceedings, ECOC 2006. - 9782912328397
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Konferensbidrag (refereegranskat)abstract
- We propose a cost-effective way to increase the non-linear tolerance of all channels in a 40-Gb/s WDM transmission system, which is shown to greatly improve the performance of RZ and especially NRZ transmission.
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- Zhao, Hongxia, 1971, et al.
(författare)
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Trellis-Coded Modulation in PSK and DPSK Communications
- 2006
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Ingår i: European Conference on Optical Communication. - 9782912328397 ; , s. 1-2
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Konferensbidrag (refereegranskat)abstract
- Coded modulation is for the first time investigated in phase-modulated systems, with coherent as well as differential detection. We find coding gains of 3.0 and 1.7 dB, already with the simplest possible trellis code.
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