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- W2188788628 abstract "Semiconductor laser diodes are important components in advanced optical fiber communication systems. Recent progress in nanostructure technology of quantum dot (QD), as active region, has led to the development of QD laser diodes which are superior to bulk, quantum-well or quantum wire laser diodes. Design model of InAs QD laser diode structure is proposed in this paper; the proposed model of QD is disk shaped its height is 2 nm and diameter is 14 nm, surface density per layer is 7×10 12 cm -2 , number of QD layers are five, wetting layer thickness is 1nm and barrier thickness is 90 nm, the dimensions of the proposed model have an active region of length 800 µm, width 12 µm, and a height of 375 nm. The evaluation of the proposed model is based on rate equations model. The results show that the QD laser diode has a lower threshold current 2.93 mA, threshold current density 30.42 A/cm 2 , bias voltage 0.97 V, while output optical power range is (0-25 mW) under wavelength range (1298-1305 nm). The model gain of the ground state is 44.6 cm -1 ." @default.
- W2188788628 created "2016-06-24" @default.
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- W2188788628 date "2014-01-01" @default.
- W2188788628 modified "2023-09-27" @default.
- W2188788628 title "Design and Analysis of Quantum Dot Laser diode for Communication Applications" @default.
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