Multiwavelength quantum dot laser element

Details Multiwavelength quantum dot laser element Multiwavelength quantum dot laser element

2007-05-17

2009-08-11

Rodriguez, Armando (Department: 2828)

Coherent light generators

Particular active media

Semiconductor

C372S038020

Reexamination Certificate

active

07573926

ABSTRACT:
A multiwavelength quantum dot laser element is provided. A perpendicular stack of quantum dot active regions with different light emitting wavelengths is employed, and thickness, material composition, and quantum dot size of each of the quantum dot active regions are modulated, so as to form various laser oscillation conditions. When a current applied to the quantum dot laser element is larger than the start-oscillation current condition, lasers with different wavelengths are simultaneously obtained in each of the quantum dot active regions, thereby achieving the application of the multiwavelength quantum dot laser element.

REFERENCES:
patent: 2008/0151950 (2008-06-01), Lin et al.
patent: 63213384 (1988-09-01), None
patent: 10112567 (1998-04-01), None
patent: 2000340883 (2000-12-01), None

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