Robert William Tkach
Alcatel-Lucent
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Publication
Featured researches published by Robert William Tkach.
Journal of Lightwave Technology | 1986
Andrew Roman Chraplyvy; Dietrich Marcuse; Robert William Tkach
The effects of Rayleigh backscatter feedback from single-mode fibers on the spectral behavior of 1.5μm InGaAsP DFB lasers were measured. Rayleigh backscattering narrows the laser linewidth and induces frequency hops. The probability distribution for finding the laser at a particular frequency is reasonably approximated by a Gaussian distribution which has a width proportional to the laser-fiber coupling efficiency. Laser frequency excursions up to 1 GHz were observed and larger shifts are predicted to occur for stronger laser-fiber coupling. The experimental results agree well With a theory based on the Van der Pol oscillator model.
Bragg Gratings, Photosensitivity, and Poling in Glass Waveguides | 2014
Roland Ryf; René-Jean Essiambre; Robert William Tkach; Andrew Roman Chraplyvy; David W. Peckham; Alan McCurdy; Robert Lingle
We measured the guided acoustic-wave Brillouin scattering in a few-mode fiber that supports LP01 and LP11 modes. We observed a strong correlation between the acoustic modes and optical intramodal and intermodal Brillouin scattering.
Archive | 1996
Andrew Roman Chraplyvy; Fabrizio Forghieri; Alan H. Gnauck; Robert William Tkach
Archive | 1996
Andrew Roman Chraplyvy; John Ellson; George W. Newsome; Robert William Tkach; J.L. Zyskind
Archive | 1994
Andrew Roman Chraplyvy; Robert William Tkach
Archive | 1996
Andrew Roman Chraplyvy; Fabrizio Forghieri; Robert William Tkach
Archive | 1996
Atul Kumar Srivastava; J.W. Sulhoff; Yan Sun; Robert William Tkach; J.L. Zyskind
Archive | 1996
Andrew Roman Chraplyvy; Robert William Tkach
Archive | 2009
Xiang Liu; Chandrasekhar Sethumadhavan; Robert William Tkach
Archive | 2008
Xiang Liu; Robert William Tkach
