Demonstration of post-growth wavelength control of VCSELs using high-contrast gratings
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چکیده
Demonstration of post-growth wavelength control of VCSELs using high-contrast gratings E. Haglund, J.S. Gustavsson, J. Bengtsson, Ã.... Haglund, A. Larsson, D. Fattal, W. Sorin, M. Tan
منابع مشابه
Multi-wavelength VCSEL arrays using high-contrast gratings
The use of a high-contrast grating (HCG) as the top mirror in a vertical-cavity surface-emitting laser (VCSEL) allows for setting the resonance wavelength by the grating parameters in a post-epitaxial growth fabrication process. Using this technique, we demonstrate electrically driven multi-wavelength VCSEL arrays at ~980 nm wavelength. The VCSELs are GaAs-based and the suspended GaAs HCGs were...
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We propose a novel design for multi-wavelength arrays of vertical cavity surface-emitting lasers (VCSELs) using high-contrast gratings (HCGs) as top mirrors. A range of VCSEL cavity wavelengths in excess of 100 nm is predicted by modifying only the period and duty-cycle of the high-contrast gratings, while leaving the epitaxial layer thickness unchanged. VCSEL arrays fabricated with this novel ...
متن کاملSize effect of high contrast gratings in VCSELs.
We report on the effects of shrinking the physical size of a high index contrast grating (HCG) on a vertical cavity surface-emitting laser (VCSEL). HCGs previously had been simulated assuming infinite periodicity. Here we probe through simulation and experiment the effect of reducing the HCG to only a few periods. We experimentally realize lasing VCSELs with as few as 4 periods of HCG. By shrin...
متن کاملIntegrated Optics Using High Contrast Gratings
High contrast grating (HCG) is a new class of optical grating with many distinct features that are not found in conventional gratings [1–6]. These features include broadband ultrahigh reflectivity, broadband ultrahigh transmission, or very high quality factor resonance, for optical beam surface-normal or in oblique incidence to the direction of grating periodicity. Furthermore, these features c...
متن کاملHigh Contrast Grating VCSELs: Properties and Implementation on InP-based VCSELs
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تاریخ انتشار 2015