Second-order enhanced coupling strength grating outcouplers in III-V photonic waveguides

Maryam Dezfuli; Freddie Castillo II; Weida Zhang; Scott McWilliams; Jerome K. Butler; Ralph Johnson; Nai-Hsiang Sun; Gary A. Evans

doi:10.1117/12.2608337

7 March 2022 Second-order enhanced coupling strength grating outcouplers in III-V photonic waveguides

Maryam Dezfuli, Freddie Castillo II, Weida Zhang, Scott McWilliams, Jerome K. Butler, Ralph Johnson, Nai-Hsiang Sun, Gary A. Evans

Author Affiliations +

Proceedings Volume PC12021, Novel In-Plane Semiconductor Lasers XXI; PC120210Q (2022) https://doi.org/10.1117/12.2608337
Event: SPIE OPTO, 2022, San Francisco, California, United States

Conference Poster

Abstract

Enhanced Coupling Strength (ECS) outcoupler gratings theoretically provide an order of magnitude reduction of grating length compared with conventional outcoupler gratings in III-V photonic waveguides. The dependence of the magnitude and spectral width of the outcoupled power of ECS outcoupling gratings is analyzed using a Floquet-Bloch space-harmonic approach for two different ECS grating geometries. ECS outcoupler gratings allow near-surface normal emission of integrated optical devices such as laser transmitters consisting of short horizontal cavity lasers combined with high-speed modulators that can operate without temperature control over a wide temperature and wavelength ranges.

Citation Download Citation

Maryam Dezfuli, Freddie Castillo II, Weida Zhang, Scott McWilliams, Jerome K. Butler, Ralph Johnson, Nai-Hsiang Sun, and Gary A. Evans "Second-order enhanced coupling strength grating outcouplers in III-V photonic waveguides", Proc. SPIE PC12021, Novel In-Plane Semiconductor Lasers XXI, PC120210Q (7 March 2022); https://doi.org/10.1117/12.2608337

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