Dual beam single-mode vertical cavity surface emitting lasers using high-index contrast grating

S Inoue,H Ohtsuki,A Matsutani,T Miyashita,F Koyama

doi:10.1109/moc.2015.7416385

Dual beam single-mode vertical cavity surface emitting lasers using high-index contrast grating

S Inoue, H Ohtsuki + Show 3 more

https://doi.org/10.1109/moc.2015.7416385

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Publication Date: Oct 1, 2015

Citations: 2

Affiliation: Tokyo Institute of Technology

#High-index Contrast Sub-wavelength Grating #Vertical Cavity Surface Emitting Lasers + Show 8 more

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Abstract

We demonstrate the dual beam emission from single-mode vertical cavity surface emitting lasers (VCSELs) with high-index contrast sub-wavelength grating (HCG) as a top mirror. The modeling and experiment on amorphous-Si/SiO2 HCG clearly shows the large angular dependence of reflectivity, which enables the dual beam emission with a large tilt angle. We fabricated VCSELs with the angular dependent HCG. We observed dual beams with 45° tilted directions which are engineered by the angular dependence of HCG.

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