Thermal impedance of VCSELs with AlO/sub x/-GaAs DBRs
1998
The authors have measured the thermal impedance of vertical-cavity surface-emitting lasers (VCSELs) with oxide/GaAs DBRs and shown that it is comparable to that of VCSELs with all-semiconductor DBRs. A VCSEL with an 8-/spl mu/m oxide aperture shows a thermal impedance of 2.8/spl deg/C/mW. By varying the aperture size, the thermal conductance of the material below the active area is 0.255 W/cm/spl deg/C. These results demonstrate that the oxide is not a major barrier to heat transport out of the active region.
Keywords:
- Correction
- Source
- Cite
- Save
- Machine Reading By IdeaReader
7
References
25
Citations
NaN
KQI