Electronic control of coherence in a two-dimensional array of photonic crystal surface emitting lasers

Abstract

We demonstrate a semiconductor PCSEL array that uniquely combines an in-plane waveguide structure with nano-scale patterned PCSEL elements. This novel geometry allows two-dimensional electronically controllable coherent coupling of remote vertically emitting lasers. Mutual coherence of the PCSEL elements is verified through the demonstration of a two-dimensional Young’s Slits experiment. In addition to allowing the all-electronic control of the interference pattern, this type of device offers new routes to power and brightness scaling in semiconductor lasers, and opportunities for all-electronic beam steering.

Metadata

Authors/Creators:

Taylor, R.J.E.
Childs, D.T.D.
Ivanov, P.
Stevens, B.J. https://orcid.org/0000-0003-4561-8704
Babazadeh, N.
Crombie, A.J.
Ternent, G.
Thoms, S.
Zhou, H.
Hogg, R.A.

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Dates: