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Thermal performance investigation of DQW GaInNAs laser diodes |
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| Authors: | J. J. Lim R. MacKenzie S. Sujecki M. Sadeghi S. M. Wang G. Adolfsson Y. Q. Wei A. Larsson P. Melanen P. Uusimaa A. A. George P. M. Smowton E. C. Larkins |
| Affiliation: | 1. The University of Nottingham, University Park, Nottingham, NG7 2RD, UK 2. Photonics Laboratory, Chalmers University of Technology, 41296, G?teborg, Sweden 3. Modulight Inc., Hermiankatu 22, 33720, Tampere, Finland 4. Cardiff School of Physics and Astronomy, Cardiff University, Queens Buildings, The Parade, Cardiff, CF24 3AA, UK |
| Abstract: | In this work, we optimize the thermal performance of a double quantum well GaInNAs ridge waveguide laser using an accurate in-house 2D electro-opto-thermal laser simulator. The simulator has shown good agreement with experiments after a detailed calibration procedure. Using calibrated material parameters, we investigate the influence of the cladding doping level on the heat generation within the laser. It is found that due to the competition between Joule heating and free carrier absorption, an optimum cladding doping level exists. |
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