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Emission properties of erbium-doped Ge-Ga-Se glasses, thin films and waveguides for laser amplifiers

Yan, Kunlun; Vu, Khu; Yang, Zhiyong; Wang, Rongping; Debbarma, Sukanta; Luther-Davies, Barry; Madden, Steve

Description

We report, for the first time, Er-doped Ge-Ga-Se films and waveguides deposited using co-thermal evaporation and patterned with plasma etching. The emission properties of the bulk glasses were studied as a function of Erbium doping, showing for the first time that there is a clear concentration quenching effect in the Ge-Ga-Se glasses with a linear radiative lifetime degradation slope of −0.48 ms/mol% Er from a low concentration lifetime of 1.7 ms, even when sufficient Gallium is present to...[Show more]

dc.contributor.authorYan, Kunlun
dc.contributor.authorVu, Khu
dc.contributor.authorYang, Zhiyong
dc.contributor.authorWang, Rongping
dc.contributor.authorDebbarma, Sukanta
dc.contributor.authorLuther-Davies, Barry
dc.contributor.authorMadden, Steve
dc.date.accessioned2016-05-26T01:57:03Z
dc.date.available2016-05-26T01:57:03Z
dc.identifier.issn2159-3930
dc.identifier.urihttp://hdl.handle.net/1885/101726
dc.description.abstractWe report, for the first time, Er-doped Ge-Ga-Se films and waveguides deposited using co-thermal evaporation and patterned with plasma etching. The emission properties of the bulk glasses were studied as a function of Erbium doping, showing for the first time that there is a clear concentration quenching effect in the Ge-Ga-Se glasses with a linear radiative lifetime degradation slope of −0.48 ms/mol% Er from a low concentration lifetime of 1.7 ms, even when sufficient Gallium is present to ensure homogeneous distribution of the Erbium. A region between approximately 0.5 and 0.75 mol% Erbium however is shown to provide sufficient doping, good photoluminescence and adequate lifetime to envisage practical planar waveguide amplifier devices. Film emission properties at 0.7 mol% doping were studied and compared with the bulk counterpart showing adequate lifetimes and photoluminescence. Erbium doped films with ~0.8 dB/cm propagation loss at 1550 nm limited by Mie scattering off small particles ejected from the evaporation crucible were fabricated. Planar hybrid Er-Ge-Ga-Se/As2S3 rib waveguides fabricated through photolithography and plasma etching demonstrated propagation losses of ~2 dB/cm at 1650 nm limited by particulate scattering.
dc.description.sponsorshipThis research was supported by the Australian Research Council Centre of Excellence for Ultrahigh bandwidth Devices for Optical Systems (project number CE110001018). Dr Zhiyong Yang is supported by ARC DECRA project DE120101036.
dc.publisherOptical Society of America
dc.rights© 2014 Optical Society of America
dc.sourceOptical Materials Express
dc.titleEmission properties of erbium-doped Ge-Ga-Se glasses, thin films and waveguides for laser amplifiers
dc.typeJournal article
local.description.notesImported from ARIES
local.identifier.citationvolume4
dc.date.issued2014
local.identifier.absfor020500
local.identifier.ariespublicationU3488905xPUB2048
local.publisher.urlhttp://www.osa.org/en-us/home/
local.type.statusPublished Version
local.contributor.affiliationYan, Kunlun, College of Physical and Mathematical Sciences, CPMS Research School of Physics and Engineering, Laser Physics Centre, The Australian National University
local.contributor.affiliationVu, Khu, College of Physical and Mathematical Sciences, CPMS Research School of Physics and Engineering, Laser Physics Centre, The Australian National University
local.contributor.affiliationYang, Zhiyong , College of Physical and Mathematical Sciences, CPMS Research School of Physics and Engineering, Laser Physics Centre, The Australian National University
local.contributor.affiliationWang, Rongping, 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.affiliationLuther-Davies, Barry, College of Physical and Mathematical Sciences, CPMS Research School of Physics and Engineering, Laser Physics Centre, The Australian National University
local.contributor.affiliationMadden, Steve, 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/CE1101018
dc.relationhttp://purl.org/au-research/grants/arc/DE120101036
local.bibliographicCitation.issue3
local.bibliographicCitation.startpage464
local.bibliographicCitation.lastpage475
local.identifier.doi10.1364/OME.4.000464
local.identifier.absseo970102
dc.date.updated2016-06-14T08:44:26Z
local.identifier.scopusID2-s2.0-84896793466
local.identifier.thomsonID000332670200006
dcterms.accessRightsOpen Access
CollectionsANU Research Publications

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