Well number, length, and temperature dependence of efficiency and loss in InGaAsP-InP compressively strained MQW ridge waveguide lasers at 1.3 μm
| Autor: | K. Prosyk, J.D. Evans, J.G. Simmons |
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| Rok vydání: | 1997 |
| Předmět: |
Materials science
Infrared business.industry Atmospheric temperature range Condensed Matter Physics Laser Atomic and Molecular Physics and Optics Semiconductor laser theory law.invention Gallium arsenide chemistry.chemical_compound chemistry law Phenomenological model Optoelectronics Electrical and Electronic Engineering business Absorption (electromagnetic radiation) Quantum well |
| Zdroj: | IEEE Journal of Quantum Electronics. 33:1360-1368 |
| ISSN: | 0018-9197 |
| DOI: | 10.1109/3.605559 |
| Popis: | Experimental measurements of external differential efficiency on 0.7% compressively strained multiquantum-well (MQW) ridge waveguide lasers operating at 1.3 /spl mu/m are presented. The lasers have the number of quantum wells (QW's) varying from 5 to 14 and cavity lengths ranging from 250 to 1000 /spl mu/m and were measured over a temperature range of -50/spl deg/C to 90/spl deg/C. A phenomenological model is introduced which shows that over a range of design and operating conditions, the behavior of the external differential quantum efficiency can be entirely explained by intervalence band absorption (IVBA) It is also shown that outside this range IVBA alone is not sufficient to describe the behavior, indicating that current leakage becomes a significant factor. Ramifications of the IVBA contribution to the external differential quantum efficiency are investigated. |
| Databáze: | OpenAIRE |
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