Relationship between Wavelength and Gain in Lasers Based on Quantum Wells, Dots, and Well-Dots.

Autor:	Kornyshov, G. O., Gordeev, N. Yu., Shernyakov, Yu. M., Beckman, A. A., Payusov, A. S., Mintairov, S. A., Kalyuzhnyy, N. A., Maximov, M. V.
Předmět:	QUANTUM well lasers QUANTUM dots QUANTUM wells LASERS SEMICONDUCTOR lasers OPTICAL constants WAVELENGTHS
Zdroj:	Semiconductors; Dec2023, Vol. 57 Issue 12, p539-542, 4p
Abstrakt:	A systematic study of a series of InGaAs/GaAs lasers in the 1–1.3 μm optical range based on quantum wells (2D), quantum dots (0D), and quantum well-dots of transitional (0D/2D) dimensionality is presented. In a wide range of pump currents, the dependences of the lasing wavelength on the layer gain constant, a parameter which allows comparing lasers with different types of active region and various waveguide designs, are measured and analyzed. It is shown that the maximum optical gain of the quantum well-dots is significantly higher, and the range of lasing rawavelengths achievable in edge-emitting lasers without external resonators is wider than in lasers based on quantum wells and quantum dots. [ABSTRACT FROM AUTHOR]
Databáze:	Complementary Index
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