Room-temperature continuous-wave quantum cascade lasers grown by MOCVD without lateral regrowth
| Autor: | Zhijun Liu, Liwei Cheng, Scott S. Howard, Claire F. Gmachl, Anthony J. Hoffman, Daniel Wasserman, T. Tanbun-Ek, Fow-Sen Choa, Xiaojun Wang |
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| Rok vydání: | 2006 |
| Předmět: |
Waveguide (electromagnetism)
Materials science business.industry Laser Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials law.invention Semiconductor laser theory Cascade law Optoelectronics Continuous wave Metalorganic vapour phase epitaxy Electrical and Electronic Engineering business Current density Quantum well |
| Zdroj: | IEEE Photonics Technology Letters. 18:1347-1349 |
| ISSN: | 1041-1135 |
| DOI: | 10.1109/lpt.2006.877006 |
| Popis: | We report on room-temperature continuous-wave (CW) operation of lambda~8.2 mum quantum cascade lasers grown by metal-organic chemical vapor deposition without lateral regrowth. The lasers have been processed as double-channel ridge waveguides with thick electroplated gold. CW output power of 5.3 mW is measured at 300 K with a threshold current density of 2.63 kA/cm2. The measured gain at room temperature is close to the theoretical design, which enables the lasers to overcome the relatively high waveguide loss |
| Databáze: | OpenAIRE |
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