Properties of laterally coupled photonic crystal surface-emitting laser two-dimensional arrays (Conference Presentation)

Aleksandr Boldin; Daehyun Kim; Richard J. E. Taylor; Ben King; Adam McKenzie; Nasser Babazadeh; Pavlo Ivanov; Jonathan R. Orchard; Neil D. Gerrard; David T. D. Childs; Richard A. Hogg

doi:10.1117/12.2546681

9 March 2020 Properties of laterally coupled photonic crystal surface-emitting laser two-dimensional arrays (Conference Presentation)

Aleksandr Boldin, Daehyun Kim, Richard J. E. Taylor, Ben King, Adam McKenzie, Nasser Babazadeh, Pavlo Ivanov, Jonathan R. Orchard, Neil D. Gerrard, David T. D. Childs, Richard A. Hogg

Author Affiliations +

Proceedings Volume 11301, Novel In-Plane Semiconductor Lasers XIX; 113010X (2020) https://doi.org/10.1117/12.2546681
Event: SPIE OPTO, 2020, San Francisco, California, United States

Abstract

Photonic crystal surface emitting lasers (PCSELs) are a new class of laser diode, offering control over emission (wavelength, polarisation, beam shape) through photonic crystal design, as well as power scalability and low beam divergence. We present developments in 2D arrays of large scale (~150x150um) PCSELs, coherently coupled by 1mm long, 100 μm wide waveguides that can be electrically driven into loss or gain. By studying the spectral and current-power characteristics, we show coherent power scaling between multiple devices. We discuss injection locking between devices achieved through controllable 2D in-plane feedback and its effect on the near and far field emissions.

Conference Presentation

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Aleksandr Boldin, Daehyun Kim, Richard J. E. Taylor, Ben King, Adam McKenzie, Nasser Babazadeh, Pavlo Ivanov, Jonathan R. Orchard, Neil D. Gerrard, David T. D. Childs, and Richard A. Hogg "Properties of laterally coupled photonic crystal surface-emitting laser two-dimensional arrays (Conference Presentation)", Proc. SPIE 11301, Novel In-Plane Semiconductor Lasers XIX, 113010X (9 March 2020); https://doi.org/10.1117/12.2546681

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KEYWORDS

Photonic crystals

Laser crystals

Semiconductor lasers

Charged particle optics

Waveguides

Beam controllers

Beam shaping

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