Sub-MHz linewidth 780.24 nm distributed feedback laser for ⁸⁷Rb applications

Di Gaetano, E. , Watson, S. , McBrearty, E. , Sorel, M. and Paul, D.J. (2020) Sub-MHz linewidth 780.24 nm distributed feedback laser for ⁸⁷Rb applications. Optics Letters, 45(13), pp. 3529-3532. (doi: 10.1364/OL.394185)

[img]
Preview
Text
217855.pdf - Published Version
Available under License Creative Commons Attribution.

757kB

Abstract

A distributed feedback GaAs-based semiconductor laser with a laterally coupled grating is demonstrated at a wavelength of 780.24 nm with up to 60 mW power. A mode expander and aluminum-free active layers have been used to reduce the linewidth to 612 kHz while maintaining high output power. The laser demonstrates over 40 dB side-mode suppression ratio with >0.3nm of tuning suitable for atom cooling experiments with the D2 87Rb atomic transition. This laser has substantial potential to be integrated into miniaturized cold atom systems.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Watson, Dr Scott and Paul, Professor Douglas and McBrearty, Dr Euan and Di Gaetano, Mr Eugenio and Sorel, Professor Marc
Authors: Di Gaetano, E., Watson, S., McBrearty, E., Sorel, M., and Paul, D.J.
College/School:College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
Journal Name:Optics Letters
Publisher:Optical Society of America
ISSN:0146-9592
ISSN (Online):1539-4794
Published Online:24 June 2020
Copyright Holders:Copyright © 2020 Optical Society of America
First Published:First published in Optics Letters 45(13): 3529-3532
Publisher Policy:Reproduced under a Creative Commons License
Data DOI:10.5525/gla.researchdata.1021

University Staff: Request a correction | Enlighten Editors: Update this record

Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
170992UK Quantum Technology Hub for Sensors and Metrology (EPSRC)Douglas PaulEngineering and Physical Sciences Research Council (EPSRC)EP/M013294/1ENG - Electronics & Nanoscale Engineering
171911Engineering Quantum Technology Systems on a Silicon PlatformDouglas PaulEngineering and Physical Sciences Research Council (EPSRC)EP/N003225/1ENG - Electronics & Nanoscale Engineering
305673Quantum Hub 2 - Birmingham - UK Quantum Technology Hub for Sensors and TimingDouglas PaulEngineering and Physical Sciences Research Council (EPSRC)EP/T001046/1P&S - Physics & Astronomy