Thermal comparison of buried-heterostructure and  shallow-ridge lasers

V. Rustichelli; F. Lemaître; H. P. M. M. Ambrosius; R. Brenot; K. A. Williams

doi:10.1117/12.2289596

23 February 2018 Thermal comparison of buried-heterostructure and shallow-ridge lasers

V. Rustichelli, F. Lemaître, H. P. M. M. Ambrosius, R. Brenot, K. A. Williams

Proceedings Volume 10526, Physics and Simulation of Optoelectronic Devices XXVI; 105261E (2018) https://doi.org/10.1117/12.2289596
Event: SPIE OPTO, 2018, San Francisco, California, United States

Abstract

We present finite difference thermal modeling to predict temperature distribution, heat flux, and thermal resistance inside lasers with different waveguide geometries. We provide a quantitative experimental and theoretical comparison of the thermal behavior of shallow-ridge (SR) and buried-heterostructure (BH) lasers. We investigate the influence of a split heat source to describe p-layer Joule heating and nonradiative energy loss in the active layer and the heat-sinking from top as well as bottom when quantifying thermal impedance. From both measured values and numerical modeling we can quantify the thermal resistance for BH lasers and SR lasers, showing an improved thermal performance from 50K/W to 30K/W for otherwise equivalent BH laser designs.

Conference Presentation

Citation Download Citation

V. Rustichelli, F. Lemaître, H. P. M. M. Ambrosius, R. Brenot, and K. A. Williams "Thermal comparison of buried-heterostructure and shallow-ridge lasers", Proc. SPIE 10526, Physics and Simulation of Optoelectronic Devices XXVI, 105261E (23 February 2018); https://doi.org/10.1117/12.2289596

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