The application of coherent optical techniques to wide-band networks

Stanley, I.W.; Hill, G.R.; Smith, David W.

doi:10.1109/jlt.1987.1075524

Cited by 36 publications

(6 citation statements)

References 20 publications

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“…In order to exploit effectively the huge bandwidth of single-mode optical fiber, several network topologies have been proposed [1,2,3]. In particular, Passive Star Network Topology seems to be well suited to achieve the above goal since Frequency Division Multiple Access (FDMA) can be implemented in conjunction with optical coherent detection techniques.…”

Section: Introductionmentioning

confidence: 99%

Possible Solution for Frequency Stabilization in a Multihop Network

Betti¹,

Marchis²,

Renzi³

et al. 1993

Journal of Optical Communications

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Section: Introductionmentioning

confidence: 99%

Possible Solution for Frequency Stabilization in a Multihop Network

Betti¹,

Marchis²,

Renzi³

et al. 1993

Journal of Optical Communications

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“…With recent great advances in coherent optical communication technology, many applications for coherent systems are now being considered in many places [1]. With consideration of stability and practicability, frequency-shift-keying (FSK) systems attract much interest.…”

Section: Introductionmentioning

confidence: 99%

Performance of Reed-Solomon Codes in CPFSK Coherent Optical Communications

Wu¹,

Wu²

1992

Journal of Optical Communications

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A study of the coherent optical CPFSK communication system employing Reed-Solomon codes is reported. The impact of the laser phase noise, the IF additive noise, and selection of the optimum code rate are investigated. With a suitable coding scheme, the receiver sensitivity will be remarkably unproved. The improvement is calculated for various modulation indices and the product of laser linewidth and bit duration (ΔνΤ). The results show that by applying a (255,179) Reed-Solomon code, when the laser linewidth is fixed (ΔνΤ = 2%) and modulation index m equals 1, the receiver sensitivity can be improved by more than 16 dB.

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“…ITH RECENT great advances in coherent optical communication technology, many application regions for coherent systems, for example, long haul trunk line systems or broad-band networks, are now being considered in many places [1]- [3]. To apply coherent technology to practical systems, it is indispensable to operate a system stably.…”

Section: Introductionmentioning

confidence: 99%

Optimum system design for CPFSK heterodyne delay demodulation system with DFB LDs

Emura

Sato

Yamazaki

et al. 1990

J. Lightwave Technol.

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An optimum system configuration for an optical continuous-phase frequency-shift-keying (CPFSK) heterodyne delay demodulation system with distributed feedback laser diodes (DFB LD's) was investigated. The optimum modulation index was indicated by evaluating the LD phase noise effect and the IF noise effect. The IF noise effect was investigated in detail, considering noise conversion effect through delay demodulation. In the case of IO-MHz IF beat spectral width, it is indicated that the modulation index rn = 1.5 is optimum for a 1.2-Gbit/s system. With this optimum modulation index of m = 1.5, a 204-km long span transmission experiment, with -41.5-dBm receiver sensitivity, has been successfully carried out. The feasibility of using stand-alone DFB LD's for a high sensitivity CPFSK delay demodulation system has been confirmed through this experiment.

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The application of coherent optical techniques to wide-band networks

Cited by 36 publications

References 20 publications

Possible Solution for Frequency Stabilization in a Multihop Network

Possible Solution for Frequency Stabilization in a Multihop Network

Performance of Reed-Solomon Codes in CPFSK Coherent Optical Communications

Optimum system design for CPFSK heterodyne delay demodulation system with DFB LDs

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