TITLE

Optical switching by saturation-induced phase changes in an active directional coupler

AUTHOR(S)
Liu, J. M.; Yeh, C.
PUB. DATE
June 1987
SOURCE
Applied Physics Letters;6/8/1987, Vol. 50 Issue 23, p1625
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The refractive index in a traveling-wave semiconductor waveguide amplifier changes with light injection at intensities close to the saturation intensity due to light-induced changes in the carrier density. The saturation-induced optical switching in an active directional coupler switch based on this effect is investigated. The system can switch from a cross state at a low input power to a bar state at a high input power. This device may be used as a power-limiting directional coupler switch with gain in a local area network.
ACCESSION #
9823177

 

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