Quantum cascade lasers operating at ¿ 20 m wavelength are reported. Pulsed operation was obtained up to 140 K with a peak power of few milliwatts at cryogenic temperatures. Laser action originates from interminiband transitions in "chirped" superlattice active regions. The waveguides are based on su
Quantum dots for VCSEL applications at λ=1.3 μm
✍ Scribed by N Ledentsov; D Bimberg; V.M Ustinov; Zh.I Alferov; J.A Lott
- Publisher
- Elsevier Science
- Year
- 2002
- Tongue
- English
- Weight
- 108 KB
- Volume
- 13
- Category
- Article
- ISSN
- 1386-9477
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
We report the results of spatially resolved micro-photoluminescence on self-organized InAs/GaAs quantum dots. Our results suggest that carrier thermal redistribution is linked to the effects of carrier migration in these quantum dots. The higher migration length was observed at 150 K, making the hig
Terahertz (THz) technology has attracted vast interests due to its wide applications. Quantum dot (QD) system is proposed to be the most suitable candidate for compact THz sources based on intraband transitions. However, transition energies of reported results still fall outside the THz range (with