Self-amplified transceivers for local-access star networks

Author

Feuer, M.D. ; Feldman, R.D. ; Zyskind, J.L. ; Wood, T.H. ; Sulhoff, J. ; Lion, K.-Y. ; Burrus, C.A.

Author_Institution

AT&T Bell Labs., Holmdel, NJ, USA

Volume

7

Issue

9

fYear

1995

Firstpage

1063

Lastpage

1065

Abstract

We describe a cost-effective approach to fiber-amplified networks based on dual use of lasers and other components for both signal and pump functions. The concept is demonstrated in a broadband, passive star network suitable for local access applications, using bidirectional transmission on a single fiber. Sensitivity improvement of 8.2 dB is achieved in the downlinks operating at 1.55-μm wavelength, while uplinks at 1.48 μm provide both pump and data. A model for receiver sensitivity incorporating the effects of spontaneous emission noise is used to explain the effect of optical filtering and to assess the potential for further improvement.

Keywords

fibre lasers; optical fibre LAN; optical fibre filters; optical fibre networks; optical noise; optical pumping; optical receivers; sensitivity; spontaneous emission; transceivers; 1.48 mum; 1.55 mum; bidirectional transmission; broadband passive star network; cost-effective approach; downlinks; fiber-amplified networks; lasers; local access applications; local-access star networks; optical filtering; pump functions; receiver sensitivity; self-amplified transceivers; sensitivity improvement; signal functions; single fiber; spontaneous emission noise; uplinks; Downlink; Fiber lasers; Laser excitation; Optical filters; Optical noise; Optical receivers; Pump lasers; Spontaneous emission; Stimulated emission; Transceivers;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/68.414704

Filename

414704