Free-carrier absorption for 10 µ modulation

1 January 1969

journal article
Published by Institute of Electrical and Electronics Engineers (IEEE) in Proceedings of the IEEE

Vol. 57 (9) , 1674-1675
https://doi.org/10.1109/proc.1969.7364

Abstract

This letter describes an infrared modulator making use of free-carrier absorption in germanium. The modulator, useful in the spectral band between 9 µ and 30 µ, achieves a good degree of modulation up to the megahertz range, with a control power of one watt.

Keywords

ABSORPTION
OPTICAL MODULATION
LENSES
DIODES
OPTICAL SURFACE WAVES
GERMANIUM
POWER LASERS
LASER BEAMS
INSERTION LOSS
LASERS AND ELECTROOPTICS

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