Accession Number:

ADP007021

Title:

A High Power and Low Noise Transmitter AM-VSB Transmission Using Erbium-Doped Fiber Post Amplifier,

Personal Author(s):

Corporate Author:

SUMITOMO ELECTRIC INDUSTRIES LTD YOKOHAMA (JAPAN)

Report Date:

1992-05-22

Abstract:

Erbium doped fiber amplifiersEDFAs with high output power and no distortion degradation are very useful for the amplitude-modulated vestigial-sidebandAM-VSB transmission systems which require a relatively high received power for a preferred carrier to noise ratioCNR and a low distortion 1 2. A field trial was conducted and feasibility of multi-distribution for trunk lines was confirmed3. We have developed an erbium doped fiber with a high conversion efficiency of 86 and a small wavelength dependence. In this paper, by using this fiber as a post amplifier, we present a high power and low noise transmitter with monitoring functions for practical use. We also show the effectiveness of long-wavelength-pass filters which have a low insertion loss and no need for wavelength tuning unlike band-pass filters.

Supplementary Note:

This article is from 'OSA Proceedings of the Topical Meeting on Optical Amplifiers and their Applications Held in Snowmass Village, Colorado on 24-26 July 1991. Volume 13,' AD-A252 974, p214 thru p217.

Pages:

0004

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0.00MB

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