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US 2001/0024316 A1Published application
Wavelength converting device and converting method
AssigneeFujitsu Limited of Kawasaki, Japan
InventorHaruhiko Kuwatsuka
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AssigneeFujitsu Limited of Kawasaki, Japan
InventorHaruhiko Kuwatsuka
Estimating the term…
A multi quantum well layer has a lamination of first and second quantum well layers each sandwiched between barrier layers and defining a quantum well. The band gap of the second quantum well layer is larger than the band gap of the first quantum well layer. Current is flowed through the multi quantum well layer from a pair of electrodes. A first optical system input inputting a signal light wave to the multi quantum well layer via an input plane of the multi quantum well layer. A second optical system propagates an output light wave output from an output plane of the multi quantum well layer. A wavelength converting device is provided which can suppress the conversion efficiency from being lowered at a large detuning angular and obtain a relatively high conversion efficiency even at a negative detuning angular frequency.
A wavelength converting device, comprising:
A wavelength converting device, comprising:
A wavelength converting device, comprising:
A wavelength converting method comprising the steps of:
Dependencies are inferred from the claim text.