A Single Fiber Linear Bus LAN Topology

Dana Du Toit; Harold Roberts

doi:10.1117/12.960016

14 December 1988 A Single Fiber Linear Bus LAN Topology

Dana Du Toit, Harold Roberts

Proceedings Volume 0991, Fiber Optic Datacom and Computer Networks; (1988) https://doi.org/10.1117/12.960016
Event: O-E/Fiber LASE '88, 1988, Boston, MA, United States

Abstract

This paper will describe the physical medium for a fiber optic local area network which utilizes the intrinsically simple, fiber efficient, linear bus topology. The implementation relies on three unique fiber optic components - an active WDM coupler, hard plastic clad silica fiber, and a low loss tap for the HCS fiber. In fiber optics, bus topology has fallen out of favor because of the well known difficulty in tapping fiber, as well as cumulative fiber losses from relatively high loss taps. The existence of a low loss (.05dB) tap which can be installed at arbitrary locations on a fiber (without breaking the fiber), allows reconsideration of -the bus. Another benefit of this tap is that the ratios are tunable between -13dB and -35dB during installation. The active WDM further simplifies the architecture by allowing bidirectional transmission on a single fiber bus; halving the amount of taps, connectors, and fiber that would otherwise be required. Short wavelength emitters and detectors are used in the WDM which enhance reliability and reduce cost. Results from a 30 tap bus will be presented and will include off/on tap ratios, bit error rate tests, power budget considerations and receiver considerations.

Citation Download Citation

Dana Du Toit and Harold Roberts "A Single Fiber Linear Bus LAN Topology", Proc. SPIE 0991, Fiber Optic Datacom and Computer Networks, (14 December 1988); https://doi.org/10.1117/12.960016

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available