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.
| Original language | English |
|---|---|
| Title of host publication | Physics and Simulation of Optoelectronic Devices XXVI |
| Place of Publication | Bellingham |
| Publisher | SPIE |
| Number of pages | 7 |
| ISBN (Electronic) | 9781510615373 |
| DOIs | |
| Publication status | Published - 1 Jan 2018 |
| Event | Physics and Simulation of Optoelectronic Devices XXVI - San Francisco, United States Duration: 29 Jan 2018 → 1 Feb 2018 |
Publication series
| Name | Proceedings of SPIE |
|---|---|
| Volume | 10526 |
Conference
| Conference | Physics and Simulation of Optoelectronic Devices XXVI |
|---|---|
| Country | United States |
| City | San Francisco |
| Period | 29/01/18 → 1/02/18 |
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Thermal comparison of buried-heterostructure and shallow-ridge lasers. / Rustichelli, V.; Lemaître, F.; Ambrosius, H.P.M.M.; Brenot, R.; Williams, K.A.
Physics and Simulation of Optoelectronic Devices XXVI. Bellingham : SPIE, 2018. 105261E (Proceedings of SPIE; Vol. 10526).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review
TY - GEN
T1 - Thermal comparison of buried-heterostructure and shallow-ridge lasers
AU - Rustichelli, V.
AU - Lemaître, F.
AU - Ambrosius, H.P.M.M.
AU - Brenot, R.
AU - Williams, K.A.
PY - 2018/1/1
Y1 - 2018/1/1
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=85046341605&partnerID=8YFLogxK
U2 - 10.1117/12.2289596
DO - 10.1117/12.2289596
M3 - Conference contribution
AN - SCOPUS:85046341605
T3 - Proceedings of SPIE
BT - Physics and Simulation of Optoelectronic Devices XXVI
PB - SPIE
CY - Bellingham
ER -