contactservices

simulations•Opticalfiberdesign

•Modecouplinganalysis

•Opticalpropagationanalysis

•Tools:Zemax,Comsol,OptiwaveOptiBPM

Manufacturing and Processing•Laserstructuringoffibers

•Laserfusingoffibersandcapillariestoglasschips

•Fusedtaperingoffibersandcapillaries

•Arcandfilamentsplicingofstandardand

microstructuredfibersfrom80µmto1200µm

•Cleavingofstandardandspecialfibers

•Etchingoffibersandcapillaries

test•Beamprofileanalysis

•Near/farfieldanalysis

•Spectraltransmissionmeasurements

For more information please go to

www.fraunhofer.de/of

Fraunhofer institute for reliability and Microintegration iZMGustav-Meyer-Allee25

13355Berlin

Germany

www.izm.fraunhofer.de

info@izm.fraunhofer.de

Dr. Henning schröderPhone:+49(30)46403-277

henning.schroeder@izm.fraunhofer.de

Dr. vanessa ZamoraPhone:+49(30)46403-7995

alethea.vanessa.zamora.gomez@izm.fraunhofer.de

Fiber Optic intercOnnects and sensOrs

7x1 Photonic lantern design for MM-to-SM coupling

aPPlications

Opticalfibersprovideuniquefeaturessuchashigh

bandwidths,low-losstransmissionathighfrequencies,

low-cost,lightweightandimmunitytoelectromag-

neticinterference.Thus,theyareusedinawiderange

ofapplications:

•Datatransmission

•Microlasing

•Spectroscopy

•Minimallyinvasivelasertherapy

•Diagnosisinhealthcare

•Environmentalsensingandmonitoring

•Aerospace

Adiversifiedgroupoffibercomponentsarefound

insidethetopicoffiberopticinterconnectsand

sensors(FOIS):

•Couplers

•Radial-firingfibertips

•Opticalandfluidicconnectionstoglasschip

•Fiberbundleprobes

•Bottleandspheremicroresonators

Fiber oPtics at FraunHoFer iZM

OuractivitiesrelatedtoFOISarefocusedonthedevelop-mentofprocessesandsystemstoform,tofuse,tospliceandtoetchopticalfibersandcapillaries.Differentkindoffibermaterialsmightbeusedsuchasallglasstypes,softandcrystallinematerialscoveringafullspectralrangefromUVtomid-IR.

Inparticular,FraunhoferIZMhasagreatexperienceinconstructingcustomizedlasermachines,whichprovidefibercomponentswithhighqualityandreproducibility.

Moreover,theseprocessesmighteasilybeadaptedtotherequirementsofthecustomer.Somemachineshavetheabilityofactivealignmentcapabilitieswithsub-micronaccuracy.

Recently,FraunhoferIZMisinvolvedindesigning,ma-nufacturingandpackagingofopticalsensingmodulesaddressedtothedevelopmentofportablediagnosticsystemsandgyroscopes.Hybridintegrationofoptoflui-dicbiochipsvialaser-structureddouble-sidedadhesivetapeshavebeenalsoinvestigated.

tecHnical Data

Fused silica fiber couplers•Diametersfrom80µmto660µm

•Couplingratiosof70:30,50:50and90:10

•Large-corecouplerswith1.5dB@850nm

Fiber tips with protective glass caps•Diametersupto2mm

•Shapedtip:Wedge,coneandball

•Glue-freejoiningofcapsviaCO2laser

Fused fibers or capillaries to glass chips•Single-mode,multi-modefibersandsilicacapillaries

withdiametersofupto1000µm

•Minimumpitchof125µm

Glass bottle resonators•Diametersfrom200μmto1000μm

• Lengthsfrom300μmto1300μm

Thinned glass fibers and tips•Biconicaltapersbyetchingwithuniformdiameters

downto10µmandlengthsfrom10mmto5cm

•Wedge-shapedtipswith10mminlength

Glass-packaged large-core MM fiber coupler with 70:30 coupling ratio

Foto cover: Fused fibers to lens-array microelements (substrate provided by Compass-EOS)

Laser-structured optical fiber tip for laser therapy in venous disorders Glass-packaged resonator-taper module