Mid Infra Red Optical Transmission Systems
A 34 Mbit/s optical transmission system operating at a wavelength close to the 2.55 mu m minimum loss wavelength of ZBLAN fibre is described. The transmitter comprises an externally modulated HeNe laser combined with external filtering to yield a stable single line source at 2.51 mu m. The receiver,...
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| Veröffentlicht in: | Materials science forum 1991-01, Vol.32-33, p.331-335 |
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| Hauptverfasser: | , , |
| Format: | Artikel |
| Sprache: | eng |
| Online-Zugang: | Volltext |
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| Zusammenfassung: | A 34 Mbit/s optical transmission system operating at a wavelength close to the 2.55 mu m minimum loss wavelength of ZBLAN fibre is described. The transmitter comprises an externally modulated HeNe laser combined with external filtering to yield a stable single line source at 2.51 mu m. The receiver, based on a novel InGaAs /InP graded composition PIN photodiode has a measured sensitivity of --35 dBm at this wavelength. Preliminary results indicate that this system could yield unrepeatered transmission over ultra low loss fibre spans in excess of 650 km. 5 ref.--AA |
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| ISSN: | 0255-5476 1662-9752 1662-9752 |
| DOI: | 10.4028/www.scientific.net/MSF.32-33.331 |