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Dive into the research topics where David J. Butler is active.

Publication


Featured researches published by David J. Butler.


Archive | 1997

Optical time domain reflectometer and method

Geoffrey Spencer; David J. Butler


Archive | 2003

Optical vestigial sideband transmitter/receiver

Carlton D. Brown; David J. Butler


Archive | 2005

Spectral tilt measurement system and method for an optical medium

Richard M. Manderscheid; David J. Butler


Archive | 2008

Channel balancing algorithm

David J. Butler; Carlton D. Brown


Archive | 2009

Alien wavelength channel balancing and line amplifier optimization

David J. Butler; Lev B. Sofman


Archive | 2003

Scheme for reducing low frequency components in an optical transmission network

David J. Butler; Kurt Schuder


Archive | 2007

OPTICAL NETWORK REGENERATOR BYPASS MODULE AND ASSOCIATED METHOD

David J. Butler


Archive | 2007

Intrusion Detection in Optical Fiber Networks

David J. Butler; Scott Thompson; Lev B. Sofman


Archive | 2005

Method and apparatus for implementing optical supervisory channel using broadband noise modulation

David J. Butler


Archive | 2003

System and method for quantification of optical signal-to-noise ratio using low frequency electrical signal analysis

David J. Butler; Robert Burford

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