| Journal: | Brazilian journal of physics |
| Database: | PERIÓDICA |
| System number: | 000309112 |
| ISSN: | 0103-9733 |
| Authors: | Furtado, M.T1 Carvalho-Junior, W Machado, A.M Jomori, K |
| Institutions: | 1Telecomunicacoes Brasileiras S.A, Centro de Pesquisa e Desenvolvimento, Campinas, Sao Paulo. Brasil |
| Year: | 1997 |
| Season: | Dic |
| Volumen: | 27 |
| Number: | 4 |
| Pages: | 456-463 |
| Country: | Brasil |
| Language: | Inglés |
| Document type: | Artículo |
| Approach: | Experimental, aplicado |
| English abstract | We present measurements of the differential gain of multiquantum well (MQW) broad area lasers emitting at 1.55 mm wavelength, taking into account the nonuniform stimulated emission caused by filamentation within the optical cavity. The differential gain was determined from measurements of the threshold current density, considering the losses due to the inhomogenous carrier density distribution, as an apparent leakage current effect in the output power-current characteristics. The lasers were grown by low pressure MOCVD and incorporate an InGaAs/InGaAsP/InP separate confinement MQW active region. The results are compared with previous data reported on similar MQW heterostructures |
| Disciplines: | Ingeniería |
| Keyword: | Ingeniería de telecomunicaciones, Pozos cuánticos, Láser, Ganancia diferencial, Longitud de onda |
| Keyword: | Engineering, Telecommunications engineering, Quantum wells, Laser, Differential gain, Wavelength |
| Full text: | Texto completo (Ver HTML) |
