Publication

Efficient broadband intracore grating LP01-LP02 mode converters for chromatic-dispersion compensation

Hans Georg Limberger
1998
Journal Articles

Abstract

LP01-LP02 mode converters based on UV-written intracore gratings have been fabricated for chromatic-dispersion compensation. The mode converters operate in transmission at wavelengths near 1550 nm with spectral bandwidths of 14-25 nm and coupling efficiencies of as much as 90%. A large negative dispersion of -335 ps/(nm km) is obtained for a compensator consisting of the mode converter and a 1490-m-long few-mode fiber. The compensator shows negative dispersion over a wavelength region of 5 nm. Its figure of merit is estimated to be 370 ps/(nm dB)

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https://infoscience.epfl.ch/entities/publication/c67d9cb6-18b9-4cb5-9a1a-e77ad309825e

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Hans Georg Limberger
1998
Journal Articles

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/c67d9cb6-18b9-4cb5-9a1a-e77ad309825e

About this result

Related concepts (29)

Buck converter

A buck converter or step-down converter is a DC-to-DC converter which steps down voltage (while stepping up current) from its input (supply) to its output (load). It is a class of switched-mode power supply. Switching converters (such as buck converters) provide much greater power efficiency as DC-to-DC converters than linear regulators, which are simpler circuits that lower voltages by dissipating power as heat, but do not step up output current.

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In optics and in wave propagation in general, dispersion is the phenomenon in which the phase velocity of a wave depends on its frequency; sometimes the term chromatic dispersion is used for specificity to optics in particular. A medium having this common property may be termed a dispersive medium (plural dispersive media). Although the term is used in the field of optics to describe light and other electromagnetic waves, dispersion in the same sense can apply to any sort of wave motion such as acoustic dispersion in the case of sound and seismic waves, and in gravity waves (ocean waves).

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