Explanipedia

Analysis and Characterization of Photon-Photon Resonance in Coupled Dual-Element Photonic Crystal Vertical Cavity Surface Emitting Laser Arrays Open

William North, Nusrat Jahan, Pawel Strzebonski, Arjun Khurana, Stephen E. Ralph , et al. · 2023

We report a photonic resonance at the frequency difference between non-degenerate modes of dual-element photonic crystal vertical cavity surface emitting laser arrays. The evolution of modes in coupled dual-element laser arrays biased in t…

Low Divergence Coherently Coupled Vertical Cavity Surface Emitting Laser Ring Arrays Open

Nusrat Jahan, Katherine Lakomy, Pawel Strzebonski, Bradley J. Thompson, Kent D. Choquette · 2022

We report the theory and experimental verification of a method to reduce beam divergence from coherently-coupled ring arrays of photonic crystal vertical cavity surface emitting lasers (VCSELs). The photonic crystal etched into the top dis…

Analysis of Coherence and Coupling in Vertical Cavity Surface Emitting Laser Arrays Open

Pawel Strzebonski, William North, Nusrat Jahan, Kent D. Choquette · 2022

The optical coupling between dual elements of photonic crystal vertical cavity surface emitting laser arrays is characterized.The optically coupled microcavity lasers have independent bias injection currents.Output power and beam analysis …

Supermode Switching in Coherently-Coupled Vertical Cavity Surface Emitting Laser Diode Arrays Open

Nusrat Jahan, William North, Pawel Strzebonski, Kent D. Choquette · 2021

We report and analyze the supermode switching with current injection found for coherently-coupled dual-element vertical cavity surface emitting laser arrays. The output power, spectral characteristics, and far-field mode profile are measur…

Complex Waveguide Supermode Analysis of Coherently-Coupled Microcavity Laser Arrays Open

Pawel Strzebonski, Kent D. Choquette · 2021

Coherently coupled microcavity lasers have desirable properties for emerging applications. We use 2-dimensional complex refractive index waveguide modeling of 2-element photonic crystal vertical cavity surface emitting laser arrays to anal…

Orbital Angular Momentum Modes From VCSELs Using Grayscale Photolithography Open

Raman Kumar, Pawel Strzebonski, Katherine Lakomy, Kent D. Choquette · 2021

We present fabrication of dielectric micro-optical elements on VCSELs and characterization of emitted orbital angular momentum modes. Spiral phase plates are fabricated on the top facet of oxide-confined VCSELs using grayscale photolithogr…

Semiconductor laser mode engineering via waveguide index structuring Open

Pawel Strzebonski · 2018

Semiconductor laser diodes are used in many applications, and their performance is often strongly influenced by the optical mode properties. In this work, dielectric waveguides and their guided modes have been simulated and analyzed as rel…

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