Ultra-Wideband Coherent Optical LANs

ISBN-13: 9783540568858 / Angielski / Miękka / 1993 / 97 str.

S. Forcesi

Opis

This collection of technical reports by European researchers demonstrates the potential of coherent optical techniques in the context of local area networks. The contributors summarize work on optical and network architectures and report the results obtained in developing components.

Spis treści

1 Introduction.- 2 UCOL Baseline.- 3 UCOL Network Architecture.- 3.1 UCOL Station Architecture.- 4 UCOL Optical Architecture.- 4.1 Introduction.- 4.2 Optical Receiver.- 4.3 Forward Error-correcting Coding.- 4.4 Channels Allocation Plan.- 4.5 Reference Carrier Generation.- 4.6 Carrier Generation for the Individual Channels.- 5 Network Extension.- 6 Experimental Results: Developed Components.- 6.1 Multi-line Master Source: Mode-Locked Laser.- 6.2 Er3+-doped Tunable Narrow-line Laser.- 6.3 Active Phase Modulator and Switch.- 6.4 Polarisation Diversity DPSK Receiver.- 6.4.1 Optical Hybrid.- 6.4.2 Low-Noise Preamplifier.- 6.4.3 DPSK Demodulator.- 6.5 Erbium-Doped Fibre Amplifier.- 6.6 Tunable Optical Filter.- 6.7 Traffic Generator Detector.- 6.7.1 TGDS Architecture.- 6.7.2 Hardware Development.- 6.7.3 Software Developments.- 6.7.4 Results.- 7 Experimental Results: Implementation of a Link between Transmitter and Receiver.- 7.1 Demonstrator Set-up.- 7.1.1 Transmission Link.- 7.1.2 Lasers.- 7.1.3 Phase Modulators.- 7.1.4 Integration of Hybrid, Front-end and Amplifier.- 7.1.5 Comb Generator.- 7.1.6 Polarization Scrambler.- 7.1.7 Automatic Frequency Control.- 7.1.8 Optical Network.- 7.1.9 BER Measurement Set-up.- 7.2 Experiments.- 7.2.1 Frequency Locking.- 7.2.2 DPSK Transmission Link.- 7.3 Results and Conclusions.- 7.3.1 Passive Phase Modulation.- 7.3.2 Active Phase Modulation.- 7.3.3 Comparison Between Active and Passive Phase Modulation.- 7.3.4 Conclusions.- 8 UCOL Bibliography.- 8.1 Technical Reports.- 8.2 Publications.- References.- UCOL Consortium.- Authors’ Addresses.