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Thermally stable hybrid cavity laser based on silicon nitride gratings

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SimoneIadanza_SiNPaper2018.pdf (917.6Kb)
Date
01/08/2018
Author
Iadanza, S.
Bakoz, A. P.
Singaravelu, P. K. J.
Panettieri, D.
Schulz, S. A.
Devarapu, G. C. R.
Guerber, S.
Baudot, C.
Boeuf, F.
Hegarty, S.
Whelan-Curtin, John William
Keywords
QC Physics
T Technology
NDAS
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Abstract
In this paper, we show the experimental results of a thermally stable Si3N4 external cavity (SiN EC) laser with high power output and the lowest SiN EC laser threshold to our knowledge. The device consists of a 250 μm sized reflective semiconductor optical amplifier butt-coupled to a passive chip based on a series of Si3N4 Bragg gratings acting as narrow reflectors. A threshold of 12 mA has been achieved, with a typical side-mode suppression ratio of 45 dB and measured power output higher than 3 mW. Furthermore, we achieved a mode-hop free-lasing regime in the range of 15–62 mA and wavelength thermal stability up to 80°C. This solves the challenges related to cavity resonances’ thermal shift and shows the possibility for this device to be integrated in dense wavelength-division multiplexing (WDM) and heat-intensive optical interconnects technologies.
Citation
Iadanza , S , Bakoz , A P , Singaravelu , P K J , Panettieri , D , Schulz , S A , Devarapu , G C R , Guerber , S , Baudot , C , Boeuf , F , Hegarty , S & Whelan-Curtin , J W 2018 , ' Thermally stable hybrid cavity laser based on silicon nitride gratings ' , Applied Optics , vol. 57 , no. 22 , pp. E218-E223 . https://doi.org/10.1364/AO.57.00E218
Publication
Applied Optics
Status
Peer reviewed
DOI
https://doi.org/10.1364/AO.57.00E218
ISSN
1559-128X
Type
Journal article
Rights
© 2018, Optical Society of America. This work has been made available online in accordance with the publisher's policies. This is the author created accepted version manuscript following peer review and as such may differ slightly from the final published version. The final published version of this work is available at https://doi.org/10.1364/AO.57.00E218
Description
Funding: Science Foundation Ireland (SFI) (16/ERCS/3838, SFI12/RC/2276); Engineering and Physical Sciences Research Council (EPSRC) (EP/L017008/1, EP/L505079/1); H2020 LEIT Information and Communication Technologies (ICT) (COSMICC nr. 688516, H2020-ICT27-2015); H2020 European Research Council (ERC) (337508)
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  • University of St Andrews Research
URL
https://cora.ucc.ie/handle/10468/7158
URI
http://hdl.handle.net/10023/18209

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