1550 nm high contrast grating VCSEL.
We demonstrate an electrically pumped high contrast grating (HCG) VCSEL operating at 1550 nm incorporating a proton implant-defined aperture. Output powers of >1 mW are obtained at room temperature under continuous wave operation. Devices operate continuous wave at temperatures exceeding 60 degrees C. The novel device design, which is grown in a single epitaxy step, may enable lower cost long wavelength VCSELs.
Chase
Christopher
C
Department of Electrical Engineering and Computer Sciences, University of California, Berkeley, CA 94720, USA.
Rao
Yi
Y
Hofmann
Werner
W
Chang-Hasnain
Connie J
CJ