A Lightwave Digital Test Facility (LDTF)

Frank P. Buchanan

doi:10.1117/12.976145

20 November 1985 A Lightwave Digital Test Facility (LDTF)

Frank P. Buchanan

Proceedings Volume 0540, Southwest Conf on Optics '85; (1985) https://doi.org/10.1117/12.976145
Event: 1985 Albuquerque Conferences on Optics, 1985, Albuquerque, United States

Abstract

This report presents a comprehensive analysis of the construction and implementation of a fiber optic transmission test facility. The facility, utilizing both multimode and single mode cabled fiber with short wavelength (850 nm) and long wavelength (1300 nm) transmission equipment, simulates actual telephone company operating conditions. One-third of the test facility's 37 miles of cabled fiber is strung on telephone poles, while the rest is underground. The report describes the construction procedure, splicing techniques and the instrumentation used for splice optimization, fiber characterization including attenuation and bandwidth measurements and the implementation of lightwave transmission equipment. The transmission equipment consists of electronic, digital multiplexing and demultiplexing equipment interfaced with electro-optical transmitter and receiver units. The transmitter units utilize both light emitting diodes (LED) and injection semiconductor lasers diodes (ILD) operating in the 850- and 1300-nanometer range. The receiver units consist of either silicon Avalanche Photo-Diodes (APD) or PIN photo-diodes integrated with a field-effect transistor (PINFET). As well as simulating telephone company operating conditions, the test facility also provides supplementary quality testing of lightwave transmission products. Future lightwave transmission products utilizing state-of-the-art design and components will be characterized at the test facility to ensure error free operation.

Citation Download Citation

Frank P. Buchanan "A Lightwave Digital Test Facility (LDTF)", Proc. SPIE 0540, Southwest Conf on Optics '85, (20 November 1985); https://doi.org/10.1117/12.976145

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KEYWORDS

Signal attenuation

Multiplexers

Receivers

Single mode fibers

Telecommunications

Light emitting diodes

Optical fiber cables

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