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Low loss coupling to sub-micron thick rib and nanowire waveguides by vertical tapering

Madden, Steve; Jin, Z.; Choi, Duk-Yong; Debbarma, S.; Bulla, Douglas; Luther-Davies, B.

Description

Highly nonlinear planar glass waveguides have been shown to be useful for all optical signal processing. However, the typical SMF-28 fiber to waveguide coupling loss of ~5dB/end remains a barrier to practical implementation. Low loss coupling to a fiber using vertical tapering of the waveguide film is analyzed for rib and nanowire waveguides and experimentally demonstrated for ribs showing polarization and wavelength independence over >300nm bandwidth. Tapers with essentially zero excess loss...[Show more]

dc.contributor.authorMadden, Steve
dc.contributor.authorJin, Z.
dc.contributor.authorChoi, Duk-Yong
dc.contributor.authorDebbarma, S.
dc.contributor.authorBulla, Douglas
dc.contributor.authorLuther-Davies, B.
dc.date.accessioned2016-05-03T23:34:48Z
dc.date.available2016-05-03T23:34:48Z
dc.identifier.issn1094-4087
dc.identifier.urihttp://hdl.handle.net/1885/101164
dc.description.abstractHighly nonlinear planar glass waveguides have been shown to be useful for all optical signal processing. However, the typical SMF-28 fiber to waveguide coupling loss of ~5dB/end remains a barrier to practical implementation. Low loss coupling to a fiber using vertical tapering of the waveguide film is analyzed for rib and nanowire waveguides and experimentally demonstrated for ribs showing polarization and wavelength independence over >300nm bandwidth. Tapers with essentially zero excess loss led to total losses from the waveguide to fiber core of 1.1dB per facet comprising only material absorption (0.75dB) and mode overlap loss (0.36dB), both of which can be eliminated with improvements to processing and materials.
dc.description.sponsorshipThis research was supported by an Australian Research Council Centre of Excellence grant (project CE110001018) to the Centre for Ultrahigh bandwidth Devices for Optical Systems (CUDOS).
dc.publisherOptical Society of America
dc.rights© 2013 Optical Society of America
dc.sourceOptics Express
dc.subjectKeywords: All-optical signal processing; Excess loss; Fiber cores; Fiber-to-waveguide coupling; Glass waveguides; Material absorption; Mode overlaps; Nanowire waveguides; Practical implementation; Submicron; Total loss; Waveguide films; Nanowires; Signal processing
dc.titleLow loss coupling to sub-micron thick rib and nanowire waveguides by vertical tapering
dc.typeJournal article
local.description.notesImported from ARIES
local.identifier.citationvolume21
dc.date.issued2013
local.identifier.absfor020501
local.identifier.absfor020502
local.identifier.ariespublicationf5625xPUB2470
local.publisher.urlhttp://www.osa.org/en-us/home/
local.type.statusPublished Version
local.contributor.affiliationMadden, Steve, College of Physical and Mathematical Sciences, CPMS Research School of Physics and Engineering, Laser Physics Centre, The Australian National University
local.contributor.affiliationJin, Zhe, College of Physical and Mathematical Sciences, CPMS Research School of Physics and Engineering, Laser Physics Centre, The Australian National University
local.contributor.affiliationChoi, Duk-Yong, College of Physical and Mathematical Sciences, CPMS Research School of Physics and Engineering, Laser Physics Centre, The Australian National University
local.contributor.affiliationDebbarma, Sukhanta, College of Physical and Mathematical Sciences, CPMS Research School of Physics and Engineering, Laser Physics Centre, The Australian National University
local.contributor.affiliationBulla, Douglas, College of Physical and Mathematical Sciences, CPMS Research School of Physics and Engineering, Laser Physics Centre, The Australian National University
local.contributor.affiliationLuther-Davies, Barry, College of Physical and Mathematical Sciences, CPMS Research School of Physics and Engineering, Laser Physics Centre, The Australian National University
dc.relationhttp://purl.org/au-research/grants/arc/CE110001018
local.bibliographicCitation.issue3
local.bibliographicCitation.startpage3582
local.bibliographicCitation.lastpage3594
local.identifier.doi10.1364/OE.21.003582
dc.date.updated2016-06-14T08:35:37Z
local.identifier.scopusID2-s2.0-84874079083
CollectionsANU Research Publications

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