Abstract
The vertical cavity surface emitting laser (VCSEL) is expected to be the novel light source in future optical systems.1 However, GaInAsP/InP VCSELs for fiber communication has been difficult to realize. The highest operating temperature is limited to 14°C.2 One of the most serious problem is the large temperature increase at the active region under cw condition, which seems to be mainly caused by the poor thermal conductivity of laser mirrors. To solve this problem, we numerically calculated the thermal characteristics of long-wavelength VCSELs by using the finite element method. In this report, we compare the results for dielectric and semiconductor mirrors, and discuss the expected performance for optimized structure.
© 1995 IEEE
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