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Vertically integrated spot-size converter in AlGaAs-GaAs

Liao, Zhongfa and Wagner, S. J. and Alam, M. Z. and Tolstikhin, V. and Aitchison, J. Stewart (2017) Vertically integrated spot-size converter in AlGaAs-GaAs. Optics Letters, 42 (20). pp. 4167-4170. ISSN 0146-9592. https://resolver.caltech.edu/CaltechAUTHORS:20171102-092345221

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Abstract

We report on the demonstration of a spot size converter (SSC) for monolithic photonic integration at a wavelength of 850 nm on a GaAs substrate. We designed and fabricated a dual-waveguide AlGaAs chip. The design consists of a lower waveguide layer for efficient end-fire coupling to a single-mode fiber, an upper waveguide layer for high refractive index contrast waveguides, and a vertical SSC to connect the two waveguide layers. We measured a SSC conversion efficiency of 91% (or −0.4  dB) between the upper and lower waveguide layers for the TE mode at a wavelength of 850 nm.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.1364/OL.42.004167DOIArticle
https://www.osapublishing.org/ol/abstract.cfm?uri=ol-42-20-4167PublisherArticle
ORCID:
AuthorORCID
Liao, Zhongfa0000-0001-7083-1270
Aitchison, J. Stewart0000-0003-1783-1380
Additional Information:© 2017 Optical Society of America. Received 11 August 2017; accepted 14 September 2017; posted 18 September 2017 (Doc. ID 304327); published 11 October 2017. Funding: Canadian Microelectronics Corporation Microsystems (CMC); Natural Sciences and Engineering Research Council of Canada (NSERC); Collaborative Research and Training Experience (CREATE) program of Canada.
Funders:
Funding AgencyGrant Number
Microelectronics Corporation MicrosystemsUNSPECIFIED
Natural Sciences and Engineering Research Council of Canada (NSERC)UNSPECIFIED
Collaborative Research and Training Experience (CREATE) Program (Canada)UNSPECIFIED
Issue or Number:20
Classification Code:OCIS codes: (130.3120) Integrated optics devices; (250.5300) Photonic integrated circuits; (220.4241) Nanostructure fabrication
Record Number:CaltechAUTHORS:20171102-092345221
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20171102-092345221
Official Citation:Zhongfa Liao, S. J. Wagner, M. Z. Alam, V. Tolstikhin, and J. Stewart Aitchison, "Vertically integrated spot-size converter in AlGaAs-GaAs," Opt. Lett. 42, 4167-4170 (2017)
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:82881
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:02 Nov 2017 17:14
Last Modified:03 Oct 2019 18:59

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