Variation of frequency chirp with wavelength in an InGaAsP/lnP multiple quantum-well waveguide electroabsorption modulator

M. S. Whalen; T. H. Wood; B. I. Miller; U. Koren; C. A. Burrus; G. Raybon

doi:10.1364/OFC.1991.ThI1

Optical Fiber Communication
1991 OSA Technical Digest Series (Optica Publishing Group, 1991),
paper ThI1
•https://doi.org/10.1364/OFC.1991.ThI1

Variation of frequency chirp with wavelength in an InGaAsP/lnP multiple quantum-well waveguide electroabsorption modulator

M. S. Whalen, T. H. Wood, B. I. Miller, U. Koren, C. A. Burrus, and G. Raybon

Optical Fiber Communication Conference 1991

San Diego, California United States
ISBN: 1-55752-166-2

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Optical Modulation (ThI)

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M. S. Whalen, T. H. Wood, B. I. Miller, U. Koren, C. A. Burrus, and G. Raybon, "Variation of frequency chirp with wavelength in an InGaAsP/lnP multiple quantum-well waveguide electroabsorption modulator," in Optical Fiber Communication, Vol. 4 of 1991 OSA Technical Digest Series (Optica Publishing Group, 1991), paper ThI1.

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Abstract

An important parameter for intensity-modulated lightwave communication systems is the degree of frequency shift or chirp in an optical signal produced by the modulating device. For a system operating at a wavelength at which the fiber dispersion is nonzero, frequency chirp limits the maximum transmission length or bandwidth because of intersymbol interference in the transmitted data. The magnitude of this effect is related to the linewidth enhancement factor α_c, which is defined as the ratio of the change in the real part of the refractive index Δn(real) to the change in the imaginary part Δn(imag.) in the modulating device.

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