Biphase linecoding in optical FSK heterodyne transmission experiment, without sensitivity degradation compared to NRZ

Hooijmans, P.W.; Tomesen, M.T.; Grijp, A. van de

doi:10.1049/el:19890227

Cited by 13 publications

(2 citation statements)

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“…Manchester coding was used to avoid penalties due to the non flat FM response of the DFB lasers. For reasons of simplicity the Manchester signal was not decoded synchronously [8], but detected at the double bit rate of 311.04 Mb/s, which implies another 3-dB penalty. Data induced polarization switching (DIPS) was implemented with 180 m of highly birefringent (PANDA) fiber [7] with 2.8-ns/m birefringence, resulting in a 0.5 ns differential delay between the two principal polarizations.…”

Section: B Coherent Distributive Systemmentioning

confidence: 99%

“…In order to have an acceptable spacing between these channels (in the order of a few gigahertz), narrow deviation CPFSK has been chosen as modulation format, which makes the application of DIPS less suitable. For this reason, we have chosen for the principle of polarization diversity, which yields the highest receiver sensitivity without the need of active polarization control [8].…”

Section: Coherent Communicative Systemmentioning

confidence: 99%

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COSNET-a coherent optical subscriber network

Labrujere¹,

Deventer²,

Koning³

et al. 1993

J. Lightwave Technol.

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Abstract-A complete coherent multi-channel system, designed for application in the local loop is presented. The concept and the technical realization of a uni-and bi-directional system in a laboratory demonstrator are described. The realized network control, including frequency management of the bi-directional channels, and network security are discussed. Attention is paid to the evolution scenario from a narrow band to a complete broad-band system. All aspects are integrated in a demonstrator, which is capable of supporting a large number of narrow-band and broad-band distributive and communicative services. Several novel technical solutions (for frequency management, data induced polarization switching (DIPS), high-speed encryption and network signalling) are presented.

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Section: B Coherent Distributive Systemmentioning

confidence: 99%

Section: Coherent Communicative Systemmentioning

confidence: 99%