Coherent light generators – Particular beam control device – Tuning
Reexamination Certificate
2008-05-06
2008-05-06
Andujar, Leonardo (Department: 2826)
Coherent light generators
Particular beam control device
Tuning
C372S102000, C372S106000
Reexamination Certificate
active
07369583
ABSTRACT:
A device contains at least one wavelength-tunable element controlled by an applied voltage and at least two resonant cavities, where the resonant wavelength of the tunable element is preferably elecrooptically tuned using the quantum confined Stark effect around the resonant wavelength of the other cavity or cavities, resulting in a modulated transmittance of the system. A light-emitting medium is preferably introduced into one of the cavities, permitting the optoelectronic device to work as an intensity-modulated light-emitting diode or diode laser by applying an injection current. The device preferably contains at least three electric contacts to apply a forward or a reverse bias and may operate as a vertical cavity surface emitting light-emitter or modulator or as a tilted cavity light emitter or modulator. Adding a few modulator sections enables applications in semiconductor optical amplifiers, frequency converters or lock-in optical amplifiers.
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Ledentsov Nikolai
Shchukin Vitaly
Andujar Leonardo
Brown & Michaels PC
Innolume GmbH
Yeung-Lopez Feifei
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