Coherent power scaling in photonic crystal surface emitting laser arrays

King, B. C. et al. (2021) Coherent power scaling in photonic crystal surface emitting laser arrays. AIP Advances, 11(1), 015017. (doi: 10.1063/5.0031158)

Abstract

A key benefit of photonic crystal surface emitting lasers (PCSELs) is the ability to increase output power through scaling the emission area while maintaining high quality single mode emission, allowing them to close the brightness gap which exists between semiconductor lasers and gas and fiber lasers. However, there are practical limits to the size, and hence power, of an individual PCSEL device, and there are trade-offs between single-mode stability and parasitic in-plane losses with increasing device size. In this paper, we discuss 2D coherent arrays as an approach to area and coherent power scaling of PCSELs. We demonstrate in two and three element PCSEL arrays an increase in the differential efficiency of the system due to a reduction in in-plane loss.

• Item Type: Articles
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: King, Ben and Boldin, Aleksandr and Childs, Dr David and Hogg, Professor Richard and McKenzie, Mr Adam and Kim, Dr Daehyun and Rae, Dr Katherine and Taylor, Dr Richard and Li, Mr Guangrui and Gerrard, Dr Neil
• Authors: King, B. C., Rae, K. J., McKenzie, A. F., Boldin, A., Kim, D., Gerrard, N. D., Li, G., Nishi, K., Takemasa, K., Sugawara, M., Taylor, R. J.E., Childs, D. T.D., and Hogg, R. A.
• College/School: College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
• Journal Name: AIP Advances
• Publisher: AIP Publishing
• ISSN: 2158-3226
• ISSN (Online): 2158-3226
• Published Online: 06 January 2021
• Copyright Holders: Copyright © 2021 The Authors
• First Published: First published in AIP Advances 11(1): 015017
• Publisher Policy: Reproduced under a Creative Commons License

Project Code	Award No	Project Name	Principal Investigator	Funder's Name	Funder Ref	Lead Dept
172610		External engagement manager: CDT Photonic Integration for Advanced Data Storage	John Marsh	Engineering and Physical Sciences Research Council (EPSRC)	EP/L015323/1	ENG - Electronics & Nanoscale Engineering