Abstract
Long-wavelength (1300/1550 nm) vertical-cavity surface-emitting lasers (VCSELs) have been much more difficult to realize than VCSELs at shorter wavelengths such as 850/980 nm. The primary reason for this has been the low refractive index difference and reflectivity associated with lattice-matched InP/InGaAsP mirrors. A solution to this problem is to “wafer-fuse” high-reflectivity GaAs/AlGaAs mirrors to InP/InGaAsP active regions. This process has led to the first room-temperature continuous-wave (CW) 1.54 µm VCSELs. In this paper, we discuss two device geometries which employ wafer-fused mirrors, both of which lead to CW operation. We also discuss fabrication of WDM arrays using long-wavelength VCSELs.
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Acknowledgments
Vijay Jayaraman would like to acknowledge support from BMDO contract DASG-60-C-0022.
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Babic, D., Jayaraman, V., Margalit, N.M. et al. Long-Wavelength Vertical-Cavity Surface-Emitting Laser Diodes. MRS Online Proceedings Library 421, 63–74 (1996). https://doi.org/10.1557/PROC-421-63
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DOI: https://doi.org/10.1557/PROC-421-63